Editor`s Welcome

IETF Journal
IETF 67 • San Diego
November 2006
Volume 2, Issue 3
Published by the Internet Society in cooperation with the Internet Engineering Task Force
Editor’s Welcome
Welcome ............. 1
By Mirjam Kühne
News from
the IETF Chair .... 2
8
IETF 67 Facts
and Figures ..........2
News from
the IAB Chair ...... 3
New BoF
Meetings ...............4
ISOC Fellowship
Program ...............4
IETF 67
Plenary Report .....5
Reflections
on Internet
Transparency .......9
Update on IPv6
Host Mobility .......10
E-mail Address
Internationalisation .................13
Interactive
Connectivity
Establishment .....14
IASA/IAOC
Update ................20
Recent IESG
Document and
Protocol Actions .21
IETF 67
IRTF Report........22
Calendar .............24
FMDPNF UP UIF MBUFTU JTTVF PG UIF *&5' +PVSOBM DPWFSJOH UPQJDT EJTDVTTFE EVSJOH BOE
GPMMPXJOH*&5'JO4BO%JFHPJO/PWFNCFS"TZPVNBZOPUJDFXFWFNBEF
BOVNCFSPGJNQSPWFNFOUTUPUIFGPSNBUBOEQSFTFOUBUJPOPGUIFKPVSOBMBTXFMMBTBDIBOHFUP
UIFXBZFBDIJTTVFJTEBUFEɩFOFXTZTUFNJTEFTJHOFEUPNPSFBDDVSBUFMZSFnFDUUIFTQFDJmD
*&5'NFFUJOHCFJOHSFQPSUFEJOBQBSUJDVMBSJTTVF*UTBMTPJOUFOEFEUPBWPJEUIFDPOGVTJPOUIBU
NBZBSJTFXIFOKPVSOBMJTTVFTBSFDBUFHPSJTFECZTFBTPO8FSFDFSUBJOPVSGSJFOETJOUIF4PVUI
FSO)FNJTQIFSFXJMMBQQSFDJBUFUIFNPEJmDBUJPO
*O UIJT JTTVF ZPVMM mOE VQEBUFT PO
UIF XPSL PG UIF *OUFSOFU 3FTFBSDI 5BTL
'PSDF *35'
B SFQPSU PO QSPHSFTT
CFJOHNBEFXJUISFTQFDUUPFNBJMBEESFTT
JOUFSOBUJPOBMJTBUJPO&"*
BOEBTVNNBSZ
PGEFWFMPQNFOUTSFMBUFEUP*1WBOE.P
CJMJUZ BMPOH XJUI PVS SFHVMBS DPMVNOT
CZ *&5' DIBJS #SJBO $BSQFOUFS BOE
*OUFSOFU "SDIJUFDUVSF #PBSE *"#
DIBJS
-FTMJF%BJHMF"TVNNBSZPGUIFQMFOBSZ
BQQFBST PO QBHF BOE B SFMBUFE BSUJDMF
i3FnFDUJPOTPO*OUFSOFU5SBOTQBSFODZwJT
POQBHF
Photo by Mirjam Kühne
Inside this issue
San Diego, site of IETF 67
ɩFOFX*&5'BENJOJTUSBUJWFTUSVDUVSFJTNBLJOHQSPHSFTTBOEBSFQPSUPOEFWFMPQNFOUTBQ
QFBSTPOQBHFɩF*&5'"ENJOJTUSBUJWF0WFSTJHIU$PNNJUUFF*"0$
IBTCFFOBDUJWFBOE
IBTBDIJFWFEBOVNCFSPGNJMFTUPOFTJODMVEJOHUIFTVDDFTTPGUIFmSTU*&5'NFFUJOHPSHBOJTFE
VOEFSBOFXPQFSBUJOHNPEFM
ɩJTJTTVFBMTPJODMVEFT+POBUIBO3PTFOCFSHTJOEFQUIMPPLBUUIF*OUFSBDUJWF$POOFDUJWJUZ
&TUBCMJTINFOU*$&
IJTSFWJFXPGUIFOFUXPSLBEESFTTUSBOTMBUJPO/"5
USBWFSTBMGPSUIF4FT
TJPO*OJUJBUJPO1SPUPDPM4*1
BOEIJTNFOUJPOPGBMUFSOBUJWFTPMVUJPOTTFFQBHF
"GUFSUIFTVDDFTTPGUIFQJMPUQIBTFPGBOFXGFMMPXTIJQQSPHSBNMBVODIFECZUIF*OUFSOFU4PDJFUZ
*40$
UPGBDJMJUBUF*&5'JODMVTJPOPG*OUFSOFUUFDIOPMPHJTUTGSPNEFWFMPQJOHDPVOUSJFT*40$
IBTBOOPVODFEUIBUUIFQSPHSBNXJMMDPOUJOVFɩF*40$'FMMPXTIJQUPUIF*&5'QSPHSBNDPW
FSTTFMFDUFEGFMMPXTDPTUTPGBUUFOEJOHBO*&5'NFFUJOHBOEJUQBJSTFBDIGFMMPXXJUIBO*&5'
WFUFSBOXIPTFSWFTBTBNFFUJOHNFOUPSɩFQSPHSBNBXBSETGFMMPXTIJQTUPVQUPmWFJOEJWJEV
BMTQFS*&5'NFFUJOH4FFQBHFGPSNPSFJOGPSNBUJPOBCPVUUIFQSPHSBNBOEGPSBQPJOUFSUP
TQPOTPSTIJQPQQPSUVOJUJFT
8FXJTIZPVGVOSFBEJOHBOEXFXFMDPNFZPVSDPNNFOUTBOEDPOUSJCVUJPOTGPSGVUVSFJTTVFT
PGUIJTQVCMJDBUJPO
IETF Journal
IETF 67 • November 2006 • Volume 2, Issue 3
News from the IETF Chair
By Brian Carpenter
"
QQSPYJNBUFMZQFPQMFGSPNDPVOUSJFTHBUIFSFEGPS*&5'
NBLJOHJUPVSUIJSEWJTJUUPUIF4IFSBUPO4BO%JFHP)PUFM.BSJOB
BOEPVSTJYUIWJTJUUP4BO%JFHPUIFmSTUCFJOH*&5'JO+BOVBSZ
)PTUFECZ4JFNFOT/FUXPSLT‰XJUIBEEJUJPOBMTVQQPSUGSPN"mMJBTGSPN
1PMBOET$PNQVUJOH$PNNVOJDBUJPOBOE/FUXPSL4FDVSJUZ$$/4
GSPN
UIF6OJWFSTJUZPG8JTDPOTJOo.BEJTPOBOEGSPNBUFBNPGEFEJDBUFEWPMVO
UFFST‰UIFXFFLGFBUVSFEUIFVTVBMNJYPGXPSLJOHHSPVQ8(
NFFUJOHT
#P'CJSETPGBGFBUIFS
TFTTJPOTSFTFBSDIHSPVQTBOEGPSNBMBOEJOGPSNBM
TJEFNFFUJOHTBTXFMMBTFYDFMMFOUXJSFMFTTOFUXPSLJOH
4JODF*&5'UXPOFX8(TXFSFDIBSUFSFEBOE8(TXFSFDMPTFE
MFBWJOHBQQSPYJNBUFMZ8(TDVSSFOUMZDIBSUFSFE*OUIFNPOUITCFUXFFO
UIFNFFUJOHTUIF8(TBOEUIFJSJOEJWJEVBMDPOUSJCVUPSTQSPEVDFEOFX
ESBGUT BOE BO JNQSFTTJWF VQEBUFT ɩF *OUFSOFU &OHJOFFSJOH 4UFFSJOH
(SPVQ *&4(
BQQSPWFE ESBGUT GPS QVCMJDBUJPO BT 3'$T SFRVFTUT GPS
DPNNFOU
BOEUIF3'$QVCMJDBUJPORVFVFDPOUJOVFEUPEFDSFBTF
"O JNQPSUBOU EJTDVTTJPO EVSJOH *&5' DPODFSOFE UIF TDBMJOH QSPC
MFNJOXJEFBSFBJOUFSEPNBJOSPVUJOHɩPVHIOPUBOFXJTTVFUIFTDBMJOH
QSPCMFN JT BHBJO CFDPNJOH B NBUUFS PG PQFSBUJPOBM DPODFSO BOE *&5'
BDUJPO JO DPOKVODUJPO XJUI UIF FOUJSF UFDIOJDBM DPNNVOJUZ JT SFRVJSFE
"SUJDMFTFMTFXIFSFJOUIJTKPVSOBMJODMVEJOHUIF1MFOBSZ3FQPSUPOQBHF
EJTDVTTUIFJTTVFJONPSFEFUBJM
"U UIF FOE PG JUT UI BOOJWFSTBSZ ZFBS UIF *&5' SFNBJOT DSVDJBM
UP DPOUJOVFE HSPXUI BOE JOOPWBUJPO JO UIF *OUFSOFU *UT XPSUI OPUJOH
UIBU UIF *OUFSOBUJPOBM 5FMFDPNNVOJDBUJPO 6OJPO *56
/FYU (FOFSBUJPO
/FUXPSLT QSPHSBN XIJDI JT SFHBSEFE BT B NBKPS JOEVTUSZ JOJUJBUJWF
JT IFBWJMZ EFQFOEFOU PO *&5' TUBOEBSET JODMVEJOH CVU OPU MJNJUFE UP
4FTTJPO*OJUJBUJPO1SPUPDPM4*1
.VMUJQSPUPDPM-BCFM4XJUDIJOH.1-4
BOEPGDPVSTF*1W*1WBOEUIFUSBOTQPSUQSPUPDPMTSVOOJOHPWFSUIFN
ɩF*&5'SFNBJOTSFTQPOTJCMFGPSUIFFWPMVUJPOPGUIFTFCBTJDQSPUPDPMTBOE
JTDPNNJUUFEUPDPOUJOVJOHUIFJSEFWFMPQNFOUGPSUIFHPPEPGUIF*OUFSOFU
BTBXIPMFBOEOPUGPSBOZPOFJOEJWJEVBMJOEVTUSJBMCMPD
"T BMXBZT TDIFEVMJOH JOGPSNBUJPO GPS UIF OFYU *&5' NFFUJOH NBZ
CFGPVOEBUIUUQXXXJFUGPSHNFFUJOHTNFFUJOHTIUNM*MPPLGPSXBSEUP
TFFJOHNBOZPGZPVJO1SBHVF.BSDIBOEBGUFSUIBUJO$IJDBHP
PO+VMZ
Brian Carpenter, IETF Chair
IETF 67
Facts and Figures
Registered attendees ........... 1199
Countries .................................. 41
New WGs ................................... 2
Closed WGs ............................. 12
New Internet-Drafts ................ 440
Updated Internet-Drafts ......... 933
IETF Last Calls ...................... 122
Approvals ............................... 104
RFC Editor Actions
(July–Sept)
99 RFC published of which
• 52 standards track or BCP
• 35 Informational or
Experimental
• 12 were from other sources
IANA Actions (June–Nov)
process 505 IETF-related requests
~ 77 requests in queue
~ 120 port requests since
IETF 66
~ 40 MIME type requests
since IETF 66
2
IETF Journal
IETF 67 • November 2006 • Volume 2, Issue 3
News from the IAB Chair
By Leslie Daigle
5
IF *"# IFME UXP XPSLTIPQT JO BOE UIF 4BO %JFHP UFDIOJDBM
QMFOBSZJODMVEFEQSFTFOUBUJPOTSFQPSUJOHPOCPUIPGUIFN*MMTBZBCJU
NPSFBCPVUFBDIPGUIFNCFMPXCVUmSTUBGFXUIPVHIUTPO*"#XPSLTIPQT
JOHFOFSBM
Leslie Daigle, IAB Chair
"T EFTDSJCFE JO JUT DIBSUFS 3'$ B NBKPS SPMF PG UIF *"# JT UP
QBZ BUUFOUJPO UP JNQPSUBOU MPOHUFSN JTTVFT DPODFSOJOH UIF *OUFSOFU BOE
UP NBLF TVSF UIBU UIFTF JTTVFT BSF CSPVHIU UP UIF BUUFOUJPO PG UIF QFPQMF
PSHSPVQTUIBUDBOBEESFTTUIFNɩF*"#XPSLTUPGVMmMMUIBUNBOEBUFJO
TFWFSBMEJĊFSFOUXBZTPOFPGXIJDIJTUPPDDBTJPOBMMZDPOWFOFBOJOWJUBUJPOBM
XPSLTIPQ*OBEEJUJPOUPCSJOHJOHJTTVFTUPXJEFSBUUFOUJPOTVDIXPSLTIPQT
BJNUPHBUIFSNPSFJOQVUPOBOBSDIJUFDUVSBMUPQJDUIBOJTSFQSFTFOUFECZUIF
*"#NFNCFSTFYQFSJFODFBMPOF
ɩF XPSLTIPQT UIFNTFMWFT BSF VTVBMMZ MJNJUFE UP QBSUJDJQBUJPO CZ
JOWJUFFTJOPSEFSUPBMMPXGPSGPDVTFETNBMMHSPVQEJTDVTTJPOT)PXFWFSUIF
POMZBDDFQUFEGPSNBMPVUQVUPGUIFXPSLTIPQJTBQVCMJDSFQPSUQVCMJTIFEBT
BO3'$"TBSFQPSUPGUIFXPSLTIPQUIFEPDVNFOUJTBSFnFDUJPOPGUIF
BUUFOEFFTDPMMFDUJWFVOEFSTUBOEJOHBUUIFUJNFPGUIFNFFUJOH‰OPUOFDFT
TBSJMZFJUIFSUIF*"#TBTBXIPMFPSUIBUPGJOEJWJEVBMBUUFOEFFTɩFMFTT
GPSNBMPVUQVUTJODMVEFBOZGPMMPXVQXPSLBUUFOEFFTNBZQVSTVFJODMVEJOH
UIFQSPQPTBMPGGVSUIFSXPSLXJUIJOPUIFS*&5'SFMBUFEHSPVQTTVDIBTUIF
*OUFSOFU3FTFBSDI5BTL'PSDF*35'
UIF*&5'BOEXPSLJOHHSPVQT
"U UIF *&5' ɩVSTEBZ FWFOJOH QMFOBSZ -PB "OEFSTTPO BOE %BOOZ
.D1IFSTPO QSFTFOUFE B SFQPSU GSPN UIF *"#T .BSDI XPSLTIPQ PO
6OXBOUFE5SBċDTFFESBGUJBCJXPVUSFQPSU
"TOPUFEQSFWJPVTMZUIF*"#
IBE PSHBOJTFE UIBU XPSLTIPQ UP SFDPHOJTF UIBU UIFSF JT QMFOUZ PG VO
XBOUFE USBċD PO UIF *OUFSOFU UPEBZ‰JO UIF GPSN PG %
%P4 4QBN WJ
SVTFTXPSNTBOEUIFMJLF
UIBUUIFUSFOEJTOPUEFDSFBTJOHBOE
UIBU
UIFQFSTJTUFODFPGJOGFDUFEIPTUTJTDPOTJEFSBCMFɩJTJTDBVTJOHTJHOJmDBOU
FDPOPNJDMPTTFTBMSFBEZBOEUIBUUSFOEJTJODSFBTJOHBTXFMMɩFQVSQPTFPG
UIF XPSLTIPQ XBT UP BTTFTT UIF TUBUF PG BĊBJST FYBNJOF FYJTUJOH DPVOUFS
NFBTVSFTBOEDPMMFDUJOQVUGPSBDUJPOQMBOOJOHɩFQMFOBSZQSFTFOUBUJPOBOE
UIFXPSLTIPQSFQPSUQSPWJEFEFUBJMTPGUIFTQFDJmDmOEJOHTBOEDPODMVTJPOT
CVUPOFPGUIFNBJOUBLFBXBZTPGUIFXPSLTIPQXBTUIBUUIFSFJTBOiVOEFS
HSPVOEFDPOPNZwUIBUJTSFBMBOEUIBUJTESJWJOHBMPUPGUIFVOXBOUFEUSBċD
ɩJTNBLFTUIFNPUJWBUJPOBOEQPTTJCMFSFNFEJBUJPOBDUJWJUJFTEJĊFSFOUGSPN
USBEJUJPOBMNFUIPETGPSEFBMJOHXJUIVOXBOUFEUSBċDJUTOPMPOHFSESJWFO
CZ TDSJQU LJEEJFT XJUI OPUIJOH CFUUFS UP EP JU JT B mOBODJBMMZ NPUJWBUFE
JMMFHBMBDUJWJUZɩFUFDIOPMPHZBOEHMPCBMDPOOFDUFEOFTTPGUIF*OUFSOFUBSF
KVTUUIFFOBCMFSTPGUIFFĊPSU'VSUIFSXPSLJTOFFEFEUPEFUFSNJOFXIBUDBO
CFEPOFUPBEESFTTUIFHSPXJOHUSFOE‰BOEOPUBMMPGJUTUFDIOJDBMXPSL
%VSJOH UIF TBNF QMFOBSZ TFTTJPO %BWF .FZFS BOE $ISJT .PSSPX
QSPWJEFE B QSFMJNJOBSZ SFQPSU GSPN UIF *"#T 0DUPCFS XPSL
TIPQPO3PVUJOHBOE"EESFTTJOHOPXEPDVNFOUFEJOESBGUJBCSBXT
SFQPSU
5IF QVSQPTF PG UIF XPSLTIPQ XBT UP FYQMPSF UIF JTTVFT UIBU
continued on next page
3
IETF Journal
IAB, continued from page 3
UIF MBSHF CBDLCPOF PQFSBUPST BSF GBDJOH SFHBSEJOH UIF TDBMBCJMJUZ PG
UPEBZT *OUFSOFU SPVUJOH TZTUFN *O UIF SFQPSU ZPV XJMM GJOE UIBU UIF
LFZXPSLTIPQGJOEJOHTJODMVEFBOBOBMZTJTPGUIFNBKPSGBDUPSTUIBUBSF
ESJWJOHSPVUJOHUBCMFHSPXUIDPOTUSBJOUTJOSPVUFSUFDIOPMPHZBOEUIF
MJNJUBUJPOTPGUPEBZT*OUFSOFUBEESFTTJOHBSDIJUFDUVSF*OQBSUJDVMBSBO
JNQPSUBOUUBLFBXBZGSPNUIFXPSLTIPQXBTUIBUUIFSFJTBOFFEUPFO
TVSFBTDBMBCMFSPVUJOHBOEBEESFTTJOHTZTUFNJOUIFGBDFPGNVMUJIPN
JOHBOEUIFFYJTUFODFGPSBXJEFTQFDUSVNPGUSBGGJDFOHJOFFSJOH5&
SFRVJSFNFOUT4DBMBCJMJUZJTUZQJDBMMZNFBTVSFEJOUFSNTPGUIFTJ[FPG
UIFEFGBVMUGSFF[POF%';
SPVUJOHUBCMFCVUUIFJNQMJDBUJPOTBSFGFMU
JOUFSNTPGUIFDPNQVUJOHDPTUPGSFDPNQVUJOHSPVUJOHJOGPSNBUJPOJO
UIFGBDFPGVQEBUFTDPODFSOTBCPVUUIF#PSEFS(BUFXBZ1SPUPDPM#(1
DPOWFSHFODFUJNFTBOEUIFSFRVJSFEQPXFSIFBUEJTTJQBUJPOQSPQFSUJFT
PGUIFIBSEXBSFOFFEFEUPSPVUFUSBGGJDJOUIFDPSFPGUIF*OUFSOFU
5IF*"#*&4(IBWFBOOPVODFEQMBOTUPFTUBCMJTIBi3PVUJOH
"EESFTTJOH%JSFDUPSBUFwUIBUXPVMEGBDJMJUBUFUIFDPOUJOVFEDPPSEJOB
UJPOBOEQSPNPUJPOPGBDUJWJUJFTUPBOBMZTFBOEBEESFTTUIFBGPSFNFO
UJPOFE QSPCMFNT "OE ZPV UPP BSF JOWJUFE UP KPJO UIF BMSFBEZ MJWFMZ
UFDIOJDBMEJTDVTTJPOPOUIF3".!JBCPSHQVCMJDNBJMJOHMJTU
IETF 67 • November 2006 • Volume 2, Issue 3
New BoF Meetings
Descriptions and agendas for all
BoF meetings can be found at
http://www.ietf.org/meetings/past.
meetings.html.
General Area
edu: Education
RAI Area
mediactrl: Media Server Control
p2p-sip: Peer to Peer Support
for Session Initiation Protocol
Security Area
spkm: NFSv4 and Low
Infrastructure Public Key Based
GSS Security Mechanisms
keyprov: Provisioning of Symetric
Keys
Transport Area
pcn: Pre-Congestion Notification
The ISOC Fellowship Program to the IETF, a new program
launched by the Internet Society, is making it possible for
technologists from developing countries to become more
involved in the IETF by attending meetings in person.
Fellows attending IETF 67 included (from left) Azael
Alcantara (Mexico), Alfred Prasad (Fiji), and Laupue
Raymond Hughes (Samoa).
Photo by Mirjam Kühne
Fellowship Program
Increases Access to IETF
The experience proved meaningful. According to Azael,
“after having met the people involved in the IETF, the
authors of drafts and RFCs, and the relations among the different WGs and the other organisations, it is going
to be very useful to reinforce what I do at work, to increase my participation in the mailing lists, and to stimulate
myself to write an RFC with others.”
A small selection committee composed of individuals with extensive knowledge of the IETF will evaluate
applicants against selection criteria and make fellowship recommendations. Complete information about the
program, including how to apply, can be found at http://www.isoc.org/educpillar/fellowship/.
4
IETF Journal
IETF 67 • November 2006 • Volume 2, Issue 3
Plenary Report IETF 67
By Mirjam Kühne
1MFBTF OPUF UIBU UIJT JT OPU B DPNQMFUF SFQPSU PG UIF QMFOBSZ TFTTJPOT SBUIFS JU JT B
TVNNBSZPGUIFIJHIMJHIUTPGUIFEJTDVTTJPOT
*
O JUT SFUVSO UP 4BO %JFHP‰DJUZ PG UIF mSTU *&5' NFFUJOH
BOE TJUF PG mWF PUIFST‰*&5' ESFX OFBSMZ QBSUJDJQBOUT GSPN DPVOUSJFT *&5' DIBJS #SJBO $BSQFO
UFS PĊFSFE B XBSN XFMDPNF UP QBSUJDJQBOUT BOE TQFDJBM UIBOLT
UP 4JFNFOT GPS IPTUJOH UIF FWFOU BOE GPS QSPWJEJOH PVUTUBOE
JOH OFUXPSLJOH GBDJMJUJFT 5PHFUIFS XJUI 4JFNFOT TUBĊ DPVOUMFTT
WPMVOUFFST FOTVSFE FYDFMMFOU 8J'J DPWFSBHF JODMVEJOH JO UIF
CBST BOE BU UIF QPPM #SJBO BMTP FYQSFTTFE HSBUJUVEF UP "mMJBT
GPSJUTTQPOTPSJOHPGUIFXFMDPNFSFDFQUJPO
0O CFIBMG PG UIF FOUJSF *&5' #SJBO
BOE *OUFSOFU "SDIJUFDUVSF #PBSE
*"#
DIBJS -FTMJF %BJHMF QVCMJDMZ
UIBOLFE+PZDF3FZOPMETGPSIFSMPOH
UJNFJOWPMWFNFOUJOBOEDPOUSJCVUJPO
UP UIF *&5' +PZDF IBE BOOPVODFE
JO 0DUPCFS UIBU TIF XBT TUFQ
QJOHEPXOGSPNIFSQPTJUJPOXJUIUIF
3'$&EJUPSUFBNBGUFSIBWJOHTFSWFE
UIF *&5' DPNNVOJUZ GPS NPSF UIBO
ZFBST 4IF CFHBO BT BO *OUFSOFU
"TTJHOFE/VNCFST"VUIPSJUZ*"/"
TUBĊ NFNCFS VOEFS +PO 1PTUFM BOE
VMUJNBUFMZ CFDBNF DPMFBEFS PG UIF
3'$&EJUPSGVODUJPO*OUIFZFBST
CFHJOOJOH JO +PZDF BMTP PSHBO
JTFE BOE MFE UIF 6TFS 4FSWJDFT "SFB
PG UIF *&5' "U UIF *&5' NFFUJOH
JO 4BO %JFHP TIF SFDFJWFE BO BXBSE
GSPNUIF*OUFSOFU4PDJFUZ*40$
BOE
B TUBOEJOH PWBUJPO GSPN UIF *&5'
DPNNVOJUZ+PZDFFYQSFTTFEIFSHSBUJ
UVEFUPUIFDPNNVOJUZTBZJOHi*UIBT
CFFOBMPWFMZSJEFw
Administrative Updates
GPS B TFSWJDFMFWFM BHSFFNFOU XJUI
UIF *"/" IBT CFFO mOBMJTFE 3BZ
BMTPBOOPVODFEUIBUUIF8FCTJUFGPS
UIF*"0$IBTCFFONPWFEUPIUUQ
JBPDJFUGPSH"GVMMSFQPSUDBOCFGPVOE
UIFSF 'JOBMMZ UIF DVSSFOU DIBJS PG
UIF *&5' /PNJOBUJPOT $PNNJUUFF
"OESFX -BOHF VSHFE FWFSZPOF
UPOPNJOBUFDBOEJEBUFTGPSPQFOTQPTJ
UJPOTJOUIF*"#*&4(BOE*"0$
*&5' BENJOJTUSBUJWF EJSFDUPS 3BZ Jonathan B. Postel Award
1FMMFUJFS SFQPSUFE UIBU B TJHOJmDBOU ɩF +POBUIBO # 1PTUFM BXBSE XBT
CVEHFU TVSQMVT GPMMPXFE *&5' FTUBCMJTIFE CZ UIF *OUFSOFU 4PDJFUZ
UIBU JT OPX FYQFDUFE UP CF SFUVSOFE UP IPOPS UIPTF XIP IBWF NBEF PVU
UP UIF *&5' "ENJOJTUSBUJWF 4VQQPSU TUBOEJOH DPOUSJCVUJPOT UP UIF EBUB
"DUJWJUZ *"4"
CVEHFU 3BZ BMTP DPNNVOJDBUJPOT DPNNVOJUZ 'PS UIF
BOOPVODFEUIBUBSFRVFTUGPSQSPQPTBM mSTU UJNF TJODF UIF QSPHSBN CFHBO
3'1
GPS UIF 3'$ &EJUPS GVODUJPO UXP JOEJWJEVBMT IBWF CFFO DIPTFO UP
XBT JTTVFE BOE B MFUUFS PG JOUFOU IBT SFDFJWF UIF QSFTUJHJPVT BXBSE #PC
CFFO TJHOFE XJUI UIF *OGPSNBUJPO #SBEFO BOE +PZDF 3FZOPMET CPUI PG
4DJFODFT*OTUJUVUFPGUIF6OJWFSTJUZPG XIPN BSF CFJOH SFDPHOJTFE GPS UIFJS
4PVUIFSO$BMJGPSOJB*4*
UIFPSHBOJ TUFXBSETIJQPGUIF3'$TFSJFTXIJDI
TBUJPOUIBUGVMmMMFEUIJTGVODUJPOPWFS
Continued on next page
UIF QBTU ZFBST
*OBEEJUJPO3BZ
SFQPSUFE PO UIF
SFDFOU QVCMJDB
UJPO PG UXP
'"2T ɩF mSTU
JT PO UIF VTF PG
3'$ NBUFSJBM
CZUIJSEQBSUJFT
BOE UIF TFDPOE
JT PO UIF VTF PG
UIF *&5' MPHP
BOEUSBEFNBSLT
*O BEEJUJPO UP
UIBU UIF UFYU View of the Sheraton San Diego Hotel & Marina, site of IETF 67
Photo by Shane Kerr
A Fond Farewell
to Joyce Reynolds
Mirjam Kühne
5
IETF Journal
IETF 67 • November 2006 • Volume 2, Issue 3
Plenary Report, continued
The most common forms of unwanted traffic began as
worms and viruses that are designed to wreak havoc on the
network and that have evolved to include self-propagating
malware, which compromises hosts and enables command
and control infrastructure, as well as service platforms that
facilitate malicious activity.
FOBCMFEDPVOUMFTTPUIFSTUPDPOUSJCVUF
UP UIF EFWFMPQNFOU PG UIF *OUFSOFU
ɩFZFBDISFDFJWFEBDSZTUBMHMPCFBOE
#PCBOE+PZDFFYQSFTTFEUIFJS
BQQSFDJBUJPO UP UIF DPNNVOJUZ BOE
UP*40$GPSUIFIPOPSɩF*&5'BOE
*40$BMTPSFDPHOJTFE+POOF4PJOJOFO
PG/PLJBBOE0MMF7JLUPSTTPOPG&SJD
TTPO GPS IPTUJOH *&5' BOE *&5'
SFTQFDUJWFMZ
SFWFOVF NJHIU EFDSFBTF )PXFWFS
TUBUJTUJDT TIPX UIBU UIJT EPFT OPU
TFFNUPCFUIFDBTF8IJMFUPPMTUIBU
GBDJMJUBUF SFNPUF QBSUJDJQBUJPO BQQFBS
UP CF VTFGVM JG NFFUJOH BUUFOEBODF
JT OPU QPTTJCMF UIFSF JT OP FWJEFODF
UP TVHHFTU UIBU SFNPUF QBSUJDJQBUJPO
PĊFST UIF TBNF WBMVF BT GBDFUPGBDF
QBSUJDJQBUJPO
Open Discussion Focuses
on Legal Issues, Remote
Participation in Meetings
-FTMJF %BJHMF BOOPVODFE QVCMJDB
UJPOPGUXP*"#EPDVNFOUTBT3'$T
3'$ i3FWJFX BOE 3FDPNNFO
EBUJPOT GPS *OUFSOBUJPOBMJTFE %P
NBJO /BNFT *%/T
w BOE 3'$
i(VJEFMJOFT GPS "DUJOH BT BO *&5'
-JBJTPO UP "OPUIFS 0SHBOJTBUJPOw
*O BEEJUJPO B OVNCFS PG *"# JOUFS
OFUESBGUT BSF DVSSFOUMZ VOEFS XBZ
" GVMM MJTU DBO CF GPVOE PO IUUQ
UPPMTJFUGPSHHSPVQJBC
8PSLTIPQ QBSUJDJQBOUT BTTFTTFE UIF
DVSSFOU TJUVBUJPO BOE FYBNJOFE QPT
TJCMF DPVOUFSNFBTVSFT 0OF PG UIFJS
mOEJOHTQPJOUTUPBIVHFVOEFSHSPVOE
FDPOPNZ UIBU ESJWFT NPTU PG UIF
-BTU 0DUPCFS UIF *"# IFME B XPSL
TIPQ JO "NTUFSEBN PO SPVUJOH BOE
BEESFTTJOH 4FF NPSF EFUBJMT MBUFS JO
UIJTBSUJDMF
IAB Workshop on Unwanted
Traffic
*O .BSDI UIF *"# IFME B
XPSLTIPQ JO .BSJOB EFM 3FZ BU UIF
6OJWFSTJUZ PG 4PVUIFSO $BMJGPSOJB
UJUMFE 6OXBOUFE 5SBċD %BOOZ
.D1IFSTPO BOE -PB "OEFSTTPO QSP
WJEFEBSFBEPVUGSPNUIBUXPSLTIPQUP
0UIFST FYQSFTTFE DPODFSO UIBU XJUI UIFQMFOBSZTFTTJPOɩFQVSQPTFPGUIF
UIF EFWFMPQNFOU PG UPPMT UP TVQQPSU XPSLTIPQ XBT UP SBJTF BXBSFOFTT PG
SFNPUF QBSUJDJQBUJPO *&5' NFFUJOH VOXBOUFE USBċD UIBU JT QSPMJGFSBUJOH
6
ɩFNPTUDPNNPOGPSNTPGVOXBOUFE
USBċD CFHBO BT XPSNT BOE WJSVTFT
UIBU BSF EFTJHOFE UP XSFBL IBWPD PO
UIF OFUXPSL BOE UIBU IBWF FWPMWFE
UP JODMVEF TFMGQSPQBHBUJOH NBMXBSF
XIJDIDPNQSPNJTFTIPTUTBOEFOBCMFT
DPNNBOE BOE DPOUSPM JOGSBTUSVDUVSF
BTXFMMBTTFSWJDFQMBUGPSNTUIBUGBDJMJ
UBUF NBMJDJPVT BDUJWJUZ /FX GPSNT PG
VOXBOUFE USBċD JODMVEF GPS FYBN
QMF $PEF 3FE %%P4 BHBJOTU BO *1
BEESFTT
#MBTUFS%%P4BHBJOTUIPTU
OBNF
BOE%FMPEFSBSCJUSBSZ%%P4
UPPMLJU
%%PT XBT JOJUJBMMZ EFTJHOFE
GPSCPUOFUUISFBUTCVUUPEBZJUFODPN
QBTTFT B NVMUJUVEF PG GVODUJPOT UIBU
BSF GPS UIF NPTU QBSU NPUJWBUFE CZ
mOBODJBMHBJOCVUBSFTPNFUJNFTBMTP
FNQMPZFE GPS QPMJUJDBM PS SFMJHJPVT
QVSQPTFT
Photo by Peter Lothberg
'PMMPXJOH QSFTFOUBUJPO PG UIF 1PTUFM
BXBSE XBT BO PQFONJLF EJTDVTTJPO
NVDI PG XIJDI XBT EFEJDBUFE UP SF
WJFXJOHQBSUJDVMBSBTQFDUTPGUIFOFX
TFDSFUBSJBU DPOUSBDU BOE UIF *&5'
5SVTU 0OF QBSUJDJQBOU FYQSFTTFE IJT
JOUFSFTU UIBU UPPMT GPS UIF *&5' XJMM
TPPO CF EFWFMPQFE UISPVHI BO PQFO
DPNNJUUFF QSPDFTT SBUIFS UIBO CFJOH
DPOUSBDUFEPVUUPUIF*&5'TFDSFUBSJ
BUBTJTUIFDBTFOPX3BZ1FMMFUJFSBOE
*"0$ DIBJS -VDZ -ZODI TBJE UIFZ
BSF XPSLJOH XJUI UIF TFDSFUBSJBU PO
BOBHSFFNFOUGPSTVQQPSUTFSWJDFTi*G
XFBSFOPUTBUJTmFEXJUIUIFQSPQPTBM
XF XJMM PQFO JU VQw TBJE 3BZ #SJBO
BEEFE UIBU POF PG UIF UPPMT CFJOH
DPOTJEFSFE JT B NFDIBOJTN GPS NFUB
EBUBJOUFSDIBOHFCFUXFFOUPPMTXIJDI
JTFYQFDUFEUPTJNQMJGZUIFQSPDFTTPG
EFDPVQMJOHUPPMTJOUIFGVUVSF
IETF 67 Technical Plenary
POUIF*OUFSOFUUPEBZJODMVEJOHTQBN
%
%P4 BUUBDLT WJSVTFT BOE XPSNT
ɩFSBUJPPGVOXBOUFEUPEFTJSFEUSBG
mD JT JODSFBTJOH BOE JOGFDUFE IPTUT
TUBZPOUIF*OUFSOFUGPSBMPOHUJNF
Joyce Reynolds receives a special
award from the IETF
VOXBOUFE USBċD ɩJT VOEFSHSPVOE
FDPOPNZ JT B WJSUVBM TIPQQJOH NBMM
XIFSFPOFTCFMPOHJOHTBOEBTTFUTBSF
CPVHIUBOETPMECZDSJNJOBMTXIPVTF
IETF Journal
UIF UPPMT EFWFMPQFE CZ UIF *OUFSOFU
DPNNVOJUZ%VFUPUIFWVMOFSBCJMJUZPG
IPTUQMBUGPSNTBOEBMBDLPGFEVDBUJPO
XIJDI QSFWFOUT QSPUFDUJPO OP NFBO
JOHGVM EFUFSSFODF FYJTUT 1SPTFDVUJPO
PGUIFDSJNJOBMTXIPQFSQFUSBUFUIFTF
DSJNFT JT FYUSFNFMZ EJċDVMU FTQF
DJBMMZJOBOJOUFSOBUJPOBMFOWJSPONFOU
"OE TFSWJDF QSPWJEFST BSFOU JODMJOFE
UPUBLFQSPBDUJWFNFBTVSFTNBJOMZCF
DBVTFGFXUPPMTFYJTUUPQSFWFOUBUUBDLT
IETF 67 • November 2006 • Volume 2, Issue 3
t &EVDBUFUIFDPNNVOJUZ
t 3BJTFUIFCBSPOMBZFSTFDVSJUZ
.FNCFST PG UIF *OUFSOFU UFDIOJ
DBM DPNNVOJUZ BSF FODPVSBHFE UP
VQEBUFEPDVNFOUTPOIPTUBOESPVUFS
SFRVJSFNFOUT BT XFMM BT UIF 3'$T
PO JOHSFTT mMUFSJOH UIF *"# TIPVME
DPOUJOVF UP SBJTF BXBSFOFTT UISPVHI
PVU UIF DPNNVOJUZ BOE UIF *OUFSOFU
3FTFBSDI 5BTL 'PSDF *35'
XPVME
PGUFO BO JOUFHSBM QBSU PG UIF QSPUPDPM
EFTJHOGSPNUIFTUBSUw
IAB Routing and Addressing
Workshop
Photo by Peter Lothberg
ɩF*OUFSOFUTSPVUJOHTZTUFNBQQFBST
UP CF GBDJOH B TFU PG TFSJPVT TDBMJOH
QSPCMFNTBOENBOZCBDLCPOFPQFSB
UPSTBSFPGUIFPQJOJPOUIBUOPOFPGUIF
FYJTUJOH *&5' JOJUJBUJWFT QSPWJEFT B
DPNQMFUFTFUPGTPMVUJPOT*OSFTQPOTF
UIF *"# PSHBOJTFE B SPVUJOH BOE
BEESFTTJOHXPSLTIPQJO"NTUFSEBNJO
0DUPCFS 4QPOTPSFE CZ *40$
UIF 3*1& /$$ /-OFU-BCT BOE
$JTDP4ZTUFNTUIFXPSLTIPQCSPVHIU
UPHFUIFS CBDLCPOF PQFSBUPST
IBSEXBSF EFTJHOFST BOE JOEJWJEVBMT
SVOOJOH FOUFSQSJTFT NBOZ PG UIFN
GSPN UIF *"# UIF *&4( BOE UIF
*35' ɩF HSPVQ NFU UP EFWFMPQ
BO VOEFSTUBOEJOH PG UIF QSPCMFNT
PQFSBUPSTGBDFXJUIUPEBZTSPVUJOHBOE
BEESFTTJOHTZTUFNBOEUPmOEXBZTUP
Steve Crocker (center) announces Jon Postel Award winners Bob Braden
VTF UIBU JOGPSNBUJPO UP JOGPSN UIF
and Joyce Reynolds
*&5'QSPDFTT%BWF.FZFSBOE$ISJT
.PSSPX QSPWJEFE BO PWFSWJFX PG UIF
BOECFDBVTFUIFSFJTOPDMFBSSFUVSOPO CFOFmU GSPN CFDPNJOH UIPSPVHIMZ XPSLTIPQNBUFSJBM
%BUB TVHHFTUT UIBU DVSSFOU USFOET
JOWFTUNFOUJGUIFZEJE
BDRVBJOUFE XJUI BMM BTQFDUT PG UIJT
*U XBT TVHHFTUFE UIBU UIF *&5' VOEFSHSPVOE FDPOPNZ TP UIBU UIF JOUIFHSPXUIPGSPVUJOHBOEBEESFTT
BOE UIF *OUFSOFU DPNNVOJUZ TUFQ VQ SFTFBSDI DPNNVOJUZ DBO XPSL PO JOH BSF OPU TDBMBCMF JO UIF MPOH UFSN
EVF NBJOMZ UP UIF SBQJE HSPXUI UIBU
EJTDVTTJPO PO UIJT JTTVF BOE MPPL GPS FĊFDUJWFDPVOUFSNFBTVSFT
UIFSJHIUCBMBODFJOUFSNTPGTPMVUJPOT
8IJMF UIF TJUVBUJPO BQQFBST UP CF SFTVMUFEGSPNNVMUJIPNJOHBOEUSBċD
/FXDSZQUPHSBQIJDNFDIBOJTNTDPVME XPSTFOJOHXJUIHSPXJOHBXBSFOFTTPG FOHJOFFSJOH 6OGPSUVOBUFMZ XIFO JU
TUFN UIF UJEF PG VOXBOUFE USBċD CVU UIFQSPCMFNDFSUBJOmSTUTUFQTUPXBSE DPNFTUPSPVUJOH*1WJTOPUTJHOJm
DBOUMZ EJĊFSFOU GSPN *1W JU TIBSFT
DPVME BMTP DVSUBJM PQFOOFTT BOE JO FĊFDUJWFTPMVUJPOTDBOFNFSHF
NBOZPGUIFTBNFQSPQFSUJFTBOETDBM
DSFBTFUIFOFUXPSLTMFWFMPGDPNQMFY
'PS B GVMM SFQPSU PG UIF *"# XPSL JOHDIBSBDUFSJTUJDT
JUZ)BDLFSTBSFTBWWZUFOBDJPVTBOE TIPQPO6OXBOUFE5SBċDTFFIUUQ
4UBUJTUJDT QSFTFOUFE BU *&5' IJHIMZ BEBQUJWF BOE JU JT DPNNPOMZ X X XJ B CPS H B C PVU XPSL TIPQ T TQBSLFE B IFBUFE EFCBUF BCPVU UIF
VOEFSTUPPEUIBUUIFZDBOPGUFOPVUNB VOXBOUFEUSBċD
BDUVBM HSPXUI DVSWF BT XFMM BT VO
OFVWFSBOZBUUFNQUTBUTFMGEFGFOTF
"VEJFODFSFTQPOTFUPUIFEJTDVTTJPO EFSMZJOH BTTVNQUJPOT XJUI RVFTUJPOT
8IBU DBO CF EPOF JO UIF OFBS BOE XBTPOFPGTVQQPSUBOEBOVOEFSTUBOE
CFJOHSBJTFEBCPVUXIFUIFSUIFHSPXUI
MPOHUFSNUPQSPUFDUUIF*OUFSOFU JOHUIBUFĊFDUJWFTPMVUJPOTXJMMSFRVJSF JT FYQPOFOUJBM QPMZOPNJBM PS MJOFBS
t 5JHIUFOTFDVSJUZPGUIFSPVUJOH DPNNVOJUZ FĊPSU 4FDVSJUZ OFFET UP "DDPSEJOH UP %BWF .FZFS XIP EF
CF BEESFTTFE BU BMM MFWFMT JODMVEJOH GFOEFEUIPTFXIPBSFXPSLJOHPOUIF
JOGSBTUSVDUVSF
t $MFBOVQUIF*OUFSOFU3PVUJOH BNPOHWFOEPSTBOEVTFSTBOEBTQBSU TUBUJTUJDTJUTOPUBOFBTZUBTLUPBOBM
PGUIFQSPUPDPMEFTJHOi&WFOBU*&5'
3FHJTUSZ*33
NFFUJOHT TFDVSJUZ JT PGUFO BO BGUFS
t 5BLFEPXOCPUTBOECPUOFUT
Continued on next page
UIPVHIUwTBJE.FSJLF,BFPi*UJTOPU
7
IETF Journal
Plenary Report, continued
ZTF UIF EBUBQSPKFDUUIFHSPXUIBOE
QSPEVDFUIFHSBQIT
"DDPSEJOH UP UIF EBUB QSFTFOUFE
UIF *OUFSOFU DPNNVOJUZ JT FYQFDUFE
UP TXJUDI PO *1W BU UIF TBNF UJNF
BOESVOJUJOQBSBMMFMXJUI*1W/PU
FWFSZPOFBHSFFEXJUIUIBUBTTVNQUJPO
FWFOUIPVHIJUJTHFOFSBMMZBHSFFEUIBU
*1W XJMM CF BSPVOE GPS B MPOH UJNF
BOE UIBU UIF TDBMBCJMJUZ PG UIF SPVU
JOH TZTUFN JT BO VSHFOU QSPCMFN "T
1FUFS-PUICFSHTBJEiɩFSFBSFUIJOHT
XFDBOUEPXJUIUPEBZTBSDIJUFDUVSF
XIJDIMJNJUTGVODUJPOBMJUZGPSVTFSTw
"OPUIFS JNQPSUBOU mOEJOH GSPN
UIF XPSLTIPQ XBT UIBU UIF VTF PG *1
BEESFTTFTGPSCPUIJEFOUJmFSBOEMPDBUPS
JT CFDPNJOH QSPCMFNBUJD 8PSLTIPQ
QBSUJDJQBOUTFYQSFTTFEUIFCFMJFGUIBUB
TPMVUJPOUPPWFSMPBEJOHNBZTPMWFUIF
NPCJMJUZ BOE NVMUJIPNJOH QSPCMFNT
ɩFZ BMTP FYBNJOFE UIF USBEFPĊT
JOIFSFOU JO 4)*. BOE (4& BOE
BHSFFE UIBU MPOHUFSN TPMVUJPOT NVTU
UBLF JOUP BDDPVOU UIF BOUJDJQBUFE PS
EFSPGNBHOJUVEF HSPXUI JO UPEBZT
OFX NPCJMF FOE EFWJDFT "U UIF
NPNFOUDPTUTBOECFOFmUTJODVSSFOU
QSBDUJDFTBSFOPUBMJHOFE
IETF 67 • November 2006 • Volume 2, Issue 3
t "SPBENBQXJUIOFYUTUFQT
JOUFSNFEJBUFTUFQTBOEMPOH
UFSNTUFQTOFFETUPCFFTUBC
MJTIFE
BHBJOXPSLTFSJPVTMZPOSPVUJOHiɩF
SPVUJOH JT OPU UIBU EJĊFSFOU CFUXFFO
*1W BOE *1Ww IF TBJE i8IFO XF
BQQSPBDIUIJTQSPCMFNXFTIPVMEOPU
-FTMJF %BJHMF BTTVSFE BUUFOE SFTUSJDU PVSTFMWFT UP IPX XF IBOEMF
FFT UIBU UIF *"# BOE *&4( BSF UIJOHTUPEBZBOEIPXSPVUFSTXPSLUP
UBLJOH UIF QSPCMFN TFSJPVTMZ BOE EBZ8FQSPCBCMZOFFEUPSFQMBDF#(1
XJMM CF GBDJMJUBUJOH UIF QSPDFTT IPX <#PSEFS(BUFXBZ1SPUPDPM>w
*O DPODMVTJPO QMFOBSZ BUUFOEFFT
FWFSNPSFJOQVUGSPNBMMTUBLFIPMEFST
BOEFYQFSUTJTOFFEFE*UJTDMFBSUIBU XFSF BTLFE XIFUIFS UIFZE CF JOUFS
VOQSFDFEFOUFE DPPSEJOBUFE BDUJPO FTUFE JO QBSUJDJQBUJOH JO B #P' JO BO
JTOFFEFEBOEUIBUNPSFPQFOEJTDVT FĊPSU UP BEESFTT UIF JTTVFT SFMBUFE UP
TJPO PG UIF JTTVFT JT SFRVJSFE 4FWFSBM UIJT UPQJD .BOZ IBOET XFOU VQ‰BO
JOEJDBUJPOUIBUUIFmSTUTUFQNJHIUCF
Data suggests that current trends in the growth of routing
and addressing are not scalable in the long term due mainly
to the rapid growth that resulted from multihoming and traffic
engineering. Unfortunately, when it comes to routing, IPv6
is not significantly different from IPv4; it shares many of the
same properties and scaling characteristics.
BDUJPOT BSF DVSSFOUMZ CFJOH DPOTJE
FSFE TVDI BT DSFBUJPO PG B HSPVQ
UPIFMQUSBDLUIFTJUVBUJPOBOENPOJ
UPS QSPHSFTT BOE EFWFMPQNFOU
PGBEEJUJPOBM*"#XPSLTIPQTQFSUBJO
ɩFXPSLTIPQDPODMVEFEXJUIBGFX JOHUPUIJTUPQJD
SFDPNNFOEBUJPOT
-FTMJF FODPVSBHFT FWFSZPOF UP
SFWJFXUIFFYJTUJOHNBUFSJBMBUIUUQ
t ɩFQSPCMFNTBSFVSHFOU
X X XJ B CPS H B C PVU XPSL TIPQ T t 8FOFFEUPSFBDIPVUUPBMM
SPVUJOHBOEBEESFTTJOH BOE UP FOHBHF
TUBLFIPMEFST‰OPUKVTUCBDL
JOFYJTUJOHPSQSPQPTFOFX8(TɩFSF
CPOFPQFSBUPSTCVUBMTPDPOUFOU
JT BMTP TPNF POHPJOH EJTDVTTJPO PO
QSPWJEFSTFOUFSQSJTFTBQQMJDB
BSDIJUFDUVSFEJTDVTT!JFUGPSH
UJPOEFWFMPQFSTBOEWFOEPST
4BN )BSUNBO SFNJOEFE BUUFOEFFT
t 4PMVUJPOTNVTUCFEFWFMPQFE
PGQSFWJPVTXPSLPOUIJTUPQJDJODMVE
JOBOPQFOBOEUSBOTQBSFOU
JOHBQSFTFOUBUJPOCZ3BEJB1FSMNBO
NBOOFSBOENVTUFOHBHF
HJWFO EVSJOH UIF QMFOBSZ TFTTJPO BU
BTNBOZQFPQMFBTQPTTJCMF
*&5'JO.JOOFBQPMJT
JODMVEJOHUIFSFTFBSDIDPN
#PC)JOEFOTBJEIFXBTQMFBTFEUIBU
NVOJUZ
UIF *&5' DPNNVOJUZ JT TUBSUJOH UP
t *OUFSJNTPMVUJPOTDPVMECVZ
UJNF
8
BQMFOBSZTJ[F#P'BUUIFOFYU*&5'
NFFUJOH
"MM *&5' QSFTFOUBUJPOT DBO
CF GPVOE BU IUUQXXXJFUGPSH
N F F U J O H T Q B T U N F F U J O H T I U N M IETF Journal
IETF 67 • November 2006 • Volume 2, Issue 3
Reflections on
Internet Transparency
By Bernard Aboba
DzJTBSUJDMFEPFTOPUBUUFNQUUPQSPWJEFBDPNQMFUFTVNNBSZPGBMM*&5'BDUJWJUJFTJO
UIJTBSFB*USFnFDUTUIFBVUIPSTQFSTPOBMQFSTQFDUJWFPOTPNFDVSSFOUIJHIMJHIUT
*
t "QQMJDBUJPOMBZFSHBUFXBZT
3'$TBZTi*GUIFGVMMSBOHFPG
*OUFSOFU BQQMJDBUJPOT JT UP CF VTFE
/"5T IBWF UP CF DPVQMFE XJUI
"QQMJDBUJPO -BZFS (BUFXBZT
"-(T
PS QSPYJFT 'VSUIFSNPSF
UIF"-(PSQSPYZNVTUCFVQEBUFE
XIFOFWFSBOFXBEESFTTEFQFOEFOU
BQQMJDBUJPODPNFTBMPOHw
OUIFQBTUUIF*OUFSOFU"SDIJUFDUVSF#PBSE*"#
IBTQVCMJTIFE ɩJT NFBOT UIBU "-(T SFQSFTFOU
BOVNCFSPGEPDVNFOUTSFMBUFEUP*OUFSOFUUSBOTQBSFODZBOEUIF BO BEEJUJPOBM CBSSJFS UP USBOTQBS
FODZ BCPWF BOE CFZPOE /"5 BOE
FOEUPFOE QSJODJQMF BOE PUIFS *&5' EPDVNFOUT IBWF UPVDIFE
UIBU "-(T DSFBUF CBSSJFST UP UIF
PO UIPTF JTTVFT BT XFMM ɩFTF EPDVNFOUT BSUJDVMBUF UIF HFOFSBM VQEBUJOH PG FYJTUJOH BQQMJDBUJPOT
QSJODJQMFT PO XIJDI UIF *OUFSOFU BSDIJUFDUVSF JT CBTFE BT XFMM BT BTXFMMBTUPUIFEFQMPZNFOUPGOFX
UIFGPMMPXJOHDPSFWBMVFTUIF*OUFSOFUDPNNVOJUZTFFLTUPQSPUFDU BQQMJDBUJPOT *U GVSUIFS NFBOT UIBU
%PNBJO/BNF4ZTUFN%/4
"-(T
HPJOHGPSXBSE
SFQSFTFOUBCBSSJFSUPUIFEFQMPZNFOU
t 0CMJWJPVT USBOTQPSU " OFUXPSL
UIBU EPFT OPU mMUFS PS USBOTGPSN
UIFEBUBUIBUJUDBSSJFTNBZCFTBJE
UP CF USBOTQBSFOU PS PCMJWJPVT UP
UIF DPOUFOU PG UIF QBDLFU i/FX
"SDI 'VUVSF (FOFSBUJPO *OUFS
OFU "SDIJUFDUVSFw IUUQXXXJTJ
FEVOFXBSDIJ%0$4G JOBMG JOBM
SFQPSUQEG
t 5VTTMF <ɩF QSPDFTT CZ XIJDI> EJG
GFSFOUQBSUJFTBEBQUUIF<*OUFSOFUT>
NJYPGNFDIBOJTNTUPUSZUPBDIJFWF
UIFJS DPOnJDUJOH HPBMT BOE PUIFST
SFTQPOE CZ BEBQUJOH UIF NFDIB
OJTNT UP QVTI CBDL 'SPN i5VTTMF
JO $ZCFSTQBDFw IUUQXXXBDN
PSHTJHTTJHDPNNTJHDPNN
QBQFSTUVTTMFQEG
t *O WFSZ HFOFSBM UFSNT UIF DPNNV
OJUZCFMJFWFTUIFHPBMJTDPOOFDUJWJUZ
UIFUPPMJTUIF*OUFSFOU1SPUPDPMBOE
UIFJOUFMMJHFODFJTJOUIFFOEUPFOE
SBUIFS UIBO IJEEFO JO UIF OFUXPSL
'SPN 3'$ i"SDIJUFDUVSBM
1SJODJQMFTPGUIF*OUFSOFUw
t 0OF EFTJSBCMF DPOTFRVFODF PG UIF
FOEUPFOEQSJODJQMFJTQSPUFDUJPOPG
JOOPWBUJPO 3FRVJSJOH NPEJmDBUJPO
JO UIF OFUXPSL JO PSEFS UP EFQMPZ
OFX TFSWJDFT JT TUJMM UZQJDBMMZ NPSF
EJċDVMUUIBONPEJGZJOHFOEOPEFT
'SPN 3'$ i" 3JTF PG UIF
.JEEMF BOE UIF 'VUVSF PG &OEUP
&OEw
"MUIPVHI UIF QVSF *1W TDFOBSJP
JT UIF DMFBOFTU BOE TJNQMFTU JU JT OPU
TUSBJHIUGPSXBSE UP SFBDI JU ɩF WBSJ
PVT TDFOBSJPT XJUIPVU VTF PG *1W
BSF BMM NFTTZ BOE VMUJNBUFMZ TFFN UP
MFBEUPEFBEFOETEFQMPZNFOUPG
*1WJTBMTPNFTTZCVUBWPJETUIF
EFBEFOET'SPN3'$i*OUFSOFU
5SBOTQBSFODZw
ɩFSFBSFBOVNCFSPGRVFTUJPOTXF
TIPVMEBTL)PXIBTUIFUIJOLJOHPO
*OUFSOFUUSBOTQBSFODZFWPMWFEPWFSUIF
ZFBST 8IBUDPSFUFOFUTTUJMMHVJEFVT
BOEXIBUOFXJOTJHIUTIBWFCFFOEF
WFMPQFE "SFUIFSFUSBOTQBSFODZJTTVFT
UIBU IBWF OPU SFDFJWFE FOPVHI BUUFO
UJPO "OEBSFOFXQPUFOUJBMUSBOTQBS
FODZCBSSJFSTCFJOHFODPVOUFSFE
&WFOXIJMFUIF*OUFSOFUIBTHSFBUMZ
FYQBOEFE CPUI JO TJ[F BOE JO BQQMJ
DBUJPO EJWFSTJUZ UIF EFHSFF PG USBOT
QBSFODZ IBT EJNJOJTIFE 3'$ i*OUFSOFU 5SBOTQBSFODZw OPUFT TPNF
PG UIF DBVTFT GPS UIF MPTT PG *OUFS
OFU USBOTQBSFODZ BOE BOBMZTFT UIFJS
JNQBDU
PG %/4 4FDVSJUZ
%/44&$
&YUFOTJPOT
t DzF%PNBJO/BNF4ZTUFN
ɩF VTF PG B VOJRVF SPPU GPS UIF
%/4 OBNFTQBDF JT FTTFOUJBM BOE B
GVOEBNFOUBM QSJODJQMF 3FDVSTJWF
OBNFTFSWFSTBOEPS%/4GPSXBSE
FSTNBZSFQMBDFSFTQPOTFTUIBUJOEJ
DBUFUIBUBOBNFEPFTOPUFYJTUXJUI
B OBNF BOE BO BEESFTT SFDPSE UIBU
IPTUTB8FCTFSWJDF*OBEEJUJPOUP
UIBU SFDVSTJWF GPSXBSEFST NPEJGZ
JOHSFTQPOTFTBSFJODPNQBUJCMFXJUI
%/44&$
t -PBECBMBODJOHBOESFEJSFDUJPO
*G MPBE CBMBODJOH BOE SFEJSFD
UJPO TFSWJDFT BSF OPU JNQMFNFOUFE
XFMM JU DBO MFBE UP PUIFS TFSWJDFT
CFJOHEJTSVQUFEGPSJOTUBODF%/4
SFEJSFDUJPONBZOPUQSPQFSMZEFUFS
NJOFMPDBMJUZ.JTDPOmHVSFEQBDLFU
mMUFSTNBZSFTVMUJOJNQSPQFSTIVOU
JOH PG USBċD UP PWFSMBZ OFUXPSLT
"OE BOZDBTU TFSWJDF NBZ OPU QSP
WJEF PCMJWJPVT USBOTQPSU JO UIFGBDF
PGSPVUJOHDIBOHFT
t *1WBEESFTTSFTUSJDUJPOT
&WFOUIPVHI3'$TUBUFTUIBU
iJUJTBCBTJDBTTVNQUJPOPG*1WUIBU
Continued on next page
9
IETF Journal
Transparency, continued from page 9
IETF 67 • November 2006 • Volume 2, Issue 3
t 2VBMJUZPG4FSWJDF2P4
2P4NBZCFVTFEUPSFTUSJDUEFQMPZ
NFOUPGOFXBQQMJDBUJPOTBOEUIFSF
GPSF IBT QPUFOUJBM JNQMJDBUJPOT GPS
USBOTQBSFODZ TJODF IBWJOH CFUUFS
PS XPSTF 2P4 GPS B nPX DBO SFTVMU
JONBLJOHUIF*OUFSOFUNPSFPSMFTT
PCMJWJPVTUPUIBUnPX
OP BSUJmDJBM DPOTUSBJOUT XJMM CF
QMBDFE PO UIF TVQQMZ PG BEESFTTFT
HJWFO UIBU UIFSF BSF TP NBOZ PG
UIFNw QSPWJEFST NBZ OPU TVQQPSU
QSFmYEFMFHBUJPOBOEHBUFXBZTNBZ
OPUTVQQPSUCSJEHJOHBOEPSOFJHI
CPVS EJTDPWFSZ QSPYZ "MTP *,&W
*UMPPLTMJLFUIF*"#TUBUFNFOUTPO
NBZ BTTJHO POMZ B TJOHMF *1W BE
USBOTQBSFODZ‰TPNF PG UIFN RVPUFE
ESFTTBTEFmOFEJO3'$
FBSMJFS‰SFNBJO SFMFWBOU UPEBZ BOE
t "QQMJDBUJPOmMUFSJOH
UIFUVTTMFUIBUMFEUPBSFEVDUJPOJO*O
"QQMJDBUJPOTNBZCFCMPDLFEXJUI UFSOFUUSBOTQBSFODZDPOUJOVFT
PVU DPOTFOU PG UIF FEHF PG UIF
8IJMF GVMM SFTUPSBUJPO PG *OUFSOFU
OFUXPSL PS QSPWJEFST NBZ OPU
USBOTQBSFODZUISPVHIUIFEFQMPZNFOU
EJTDMPTF TFSWJDF UFSNT BOE QPMJDJFT
PG*1WSFNBJOTBHPBMUIF*OUFSOFUT
UPUIFVTFST
HSPXJOHSPMFJOTPDJFUZUIFJODSFBTJOH
EJWFSTJUZPGBQQMJDBUJPOTBOEUIFDPO
UJOVFEHSPXUIJOTFDVSJUZUISFBUTIBWF
BMUFSFEUIFCBMBODFCFUXFFOUSBOTQBS
FODZBOETFDVSJUZ8IJMFUSBOTQBSFODZ
QSPWJEFTHSFBUnFYJCJMJUZJUBMTPNBLFT
JUFBTJFSUPEFMJWFSVOXBOUFEBTXFMMBT
XBOUFEUSBċD
4JODF NBOZ PG UIF GVOEBNFOUBM
GPSDFT UIBU IBWF MFE UP B SFEVDUJPO JO
UIFUSBOTQBSFODZPGUIF*1W*OUFSOFU
BMTPNBZQMBZBSPMFJOUIF*1W*OUFS
OFUUIFUSBOTQBSFODZPGUIF*1W*O
UFSOFUJTOPUQSFPSEBJOFESBUIFSSFQ
SFTFOUT BO JEFBM XIPTF NBJOUFOBODF
XJMMSFRVJSFTJHOJmDBOUPOHPJOHFĊPSU
Update on IPv6 Host Mobility
UPS /"5
USBWFSTBM QSPDFEVSFT
*O BO VQEBUFE ESBGU WFSTJPO NBOZ
By Wolfgang Fritsche and Gerardo Giaretta
JTTVFTIBWFCFFOSFTPMWFETVDIBTUIF
SFKFDUJPO PG B MJHIUXFJHIU LFFQBMJWF
DzJTBSUJDMFEPFTOPUBUUFNQUUPQSPWJEFBDPNQMFUFTVNNBSZPGBMM*&5'BDUJWJUJFTJO
NFDIBOJTN GPS TUBUF NBJOUFOBODF
UIJTBSFB*USFnFDUTUIFBVUIPSTQFSTPOBMQFSTQFDUJWFPOTPNFDVSSFOUIJHIMJHIUT
JO /"5T PS UIF BWPJEBODF PG UIF VTF
PGBOBMUFSOBUFDBSFPGBEESFTT$P"
TNPCJMFDPNNVOJDBUJPOTCFDPNFBNPSFJOUFHSBMQBSUPGPVS JO *1W OFUXPSLT 0UIFS JTTVFT TVDI
EBJMZMJWFTTPBSFUIFZDBQUVSJOHUIFBUUFOUJPOPGUIF*&5' BT UIF EZOBNJD EJTDPWFSZ PG /"5T
XIJDIIBTTFFOBOJODSFBTFJOUIFOVNCFSPG*&5'XPSLJOHHSPVQT JO UIF IPNF BHFOUT )"T
EPNBJO
PS UIF VTF PG NBQQFE BEESFTTFT XJMM
EFBMJOHXJUINPCJMJUZJTTVFTɩJTSFWJFXQSPWJEFTBOVQEBUFPOUIF OFFE UP CF EJTDVTTFE BOE SFTPMWFE PO
XPSLCFJOHEPOFJOUIFBSFBPG*1WIPTUNPCJMJUZBTEJTDVTTFEMBTU UIFNBJMJOHMJTU
"
/PWFNCFSBU*&5'
Mobility for IPv6 WG (mip6)
.PCJMF *1W .*1W
QSPWJEFT UIF
SPVUJOH TVQQPSU UIBU BMMPXT B NPCJMF
OPEF./
UPSPBNCFUXFFOEJĊFSFOU
QPJOUT PG BUUBDINFOU UP UIF *OUFSOFU
XIJMF DPOUJOVJOH UP VTF JUT IPNF BE
ESFTT UIFSFCZ LFFQJOH USBOTQBSFODZ
PGUIFNPCJMJUZUPMBZFSTBCPWF*1ɩF
NJQ 8( GPDVTFT PO FOIBODJOH UIF
.PCJMF*1WCBTFQSPUPDPMJOPSEFSUP
QSPWJEFUIFGVODUJPOBMJUZSFRVJSFEGPS
BMBSHFTDBMFEFQMPZNFOU
10
ɩF XPSL PO BVUIFOUJDBUJPO BV
UIPSJTBUJPO BOE BDDPVOUJOH """
HPBMTGPS.*1WIBTQBTTFE8(MBTU
DBMM ɩF 8( BHSFFE PO B OFX HPBM
GPSTVQQPSUJOHUIFTFQBSBUJPOPG"""
TFSWFST VTFE GPS OFUXPSL BDDFTT BOE
NPCJMJUZ TFSWJDF BVUIPSJTBUJPO )PX
FWFSBmOBMBHSFFNFOUBCPVUXIFUIFS
PS OPU UP JODMVEF BEEJUJPOBM TVQQPSU
GPS3'$"VUIFOUJDBUJPO1SPUP
DPM
IBTCFFOEFMBZFE
*O UIJT DPOUFYU UIF NJQ 8( JT
XPSLJOHPOBQSPUPDPMUIBUXJMMFOBCMF
.*1W UP TVQQPSU EVBM TUBDL IPTUT
BOESPVUFSTɩJTTPMVUJPOXJMMIBOEMF
*1W BOE *1W NPCJMJUZ BU PODF CZ
VTJOH .*1W BT JUT CBTJT *U BMMPXT
./T UP BDDFTT UIF *OUFSOFU WJB *1W
BOE *1W BDDFTT OFUXPSLT ɩF
EVBMTUBDL TPMVUJPO GVSUIFS QSPWJEFT
TVQQPSU GPS EFBMJOH XJUI QSJWBUF
8IJMFUIF%FTJHO5FBN%5
XPSL
BEESFTT BTTJHONFOU UP ./T BOE UIF JOHPO)"SFMJBCJMJUZIBTTZODISPOJTFE
SFRVJSFE OFUXPSL BEESFTT USBOTMB UIFESBGUTBCPVUUIF)"TXJUDINFT
IETF Journal
TBHF BOE UIF )" SFMJBCJMJUZ QSPUPDPM
OPOFXWFSTJPOTXFSFSFMFBTFEQSJPSUP
UIFDVUPĊUJNF$IBMMFOHFTSFNBJOPO
IPXCFTUUPUSBOTNJU*1TFDVSJUZTUBUF
GSPNPOF)"UPBOPUIFSBTSFRVJSFE
GPSUIFWJSUVBMTXJUDINPEF
ɩF8(BMTPEJTDVTTFEmSFXBMMUSB
WFSTBMGVODUJPOBMJUZGPS.*1W.BOZ
BUUFOEFFT XFSF VODMFBS BCPVU XIZ
B HFOFSJD TPMVUJPO PS B NBOVBM DPO
mHVSBUJPOPGmSFXBMMTXPVMEOPUXPSL
BMTPGPS.*1W4JODFmSFXBMMUSBWFST
BMJTBMSFBEZQBSUPGUIFVQEBUFE8(
DIBSUFSJUXBTEFDJEFEUIBUEJTDVTTJPO
PG UIF TDPQF PG UIF QSPCMFN XPVME
DPOUJOVF PO UIF NBJMJOH MJTU *O UIF
NFBOUJNFBmSFXBMMUSBWFSTBM%5XBT
FTUBCMJTIFE
'JOBMMZ B CSJFG EJTDVTTJPO UPVDIFE
PO SFDFOU JOUFSFTU JO UIF 1SPYZ
.*1W 1.*1W
XPSL ɩF JOUFS
FTUDPNFTNBJOMZGSPNPUIFSTUBOEBS
EJTBUJPO CPEJFT TVDI BT (11 BOE
UIF8J.BY'PSVN8IJMFUIJTUPQJD
DMFBSMZ IBT CFFO BTTJHOFE GPS EFDJ
TJPOUPUIF/FUXPSL#BTFE-PDBMJTFE
.PCJMJUZ .BOBHFNFOU OFUMNN
8( BO JOGPSNBM DPOTFOTVT DBMM
XJUIJO UIF NJQ 8( TIPXFE UIF
NBKPSJUZ JO GBWPVS PG TUBOEBSEJT
JOH POMZ B TJOHMF MPDBMJTFE NPCJMJUZ
NBOBHFNFOUQSPUPDPM
MIPv6 Signalling and Handoff
Optimisation WG (mipshop)
ɩF NJQTIPQ 8( GPDVTFT PO EF
mOJOH PQUJNJTBUJPOT GPS .PCJMF *1W
TJHOBMMJOH BOE IBOEPĊ QFSGPSNBODFT
ɩF DIBSUFS PG UIF HSPVQ DPOTJTUT PG
UXP NBJO BDUJWJUJFT UIF mSTU EFBMT
XJUI).*1WBOE'.*1WQSPUPDPMT
UIBU BSF OPX JO FYQFSJNFOUBM TUBUVT
BOE XJMM CF EPDVNFOUFE BT 1SPQPTFE
4UBOEBSEUIFPUIFSEFBMTXJUIBDUJWJ
UJFTSFMBUFEUPUIF*&&&.FEJB
*OEFQFOEFOU)BOEPĊ.*)
XPSLJOH
HSPVQ
8JUI SFHBSE UP UIF mSTU UIF HSPVQ
JT XPSLJOH PO EFmOJOH TPMVUJPOT
IETF 67 • November 2006 • Volume 2, Issue 3
GPS ).*1W BOE '.*1W TFDV
SJUZ ɩPTF QSPUPDPMT QSPQPTF DFSUBJO
FOIBODFNFOUT UP .PCJMF *1W BOE
SFRVJSF UIBU UIF NPCJMF OPEF IBWF B
TFDVSJUZ SFMBUJPOTIJQ CFUXFFO JUTFMG
BOEUIFNPCJMJUZBODIPSQPJOU."1
GPS ).*1W BOE UIF BDDFTT SPVUFS
GPS '.*1W 4FWFSBM QSPQPTBMT IBWF
CFFO TVCNJUUFE UIBU CPPUTUSBQ UIFTF
TFDVSJUZ BTTPDJBUJPOT TPNF PG XIJDI
BSFCBTFEPOUIF"""JOGSBTUSVDUVSF
PG UIF OFUXPSL PQFSBUPS 0UIFS QSP
QPTBMT BSF CBTFE PO UIF VTF PG JOGSB
TUSVDUVSFMFTT TFDVSJUZ NFDIBOJTNT
TVDI BT DSZQUPHSBQIJDBMMZ HFOFSBUFE
BEESFTTFTɩFHSPVQIBTEFDJEFEUIBU
JOPSEFSUPNPWF).*1WUP1SPQPTFE
4UBOEBSE UIF VTF PG *,&W CFUXFFO
UIF./BOEUIF."1TIPVMECFBE
PQUFEɩF&YUFOTJCMF"VUIFOUJDBUJPO
1SPUPDPM NBZ CF VTFE PWFS *,&W JO
DBTF UIF BVUIFOUJDBUJPO PG UIF ./
JT CBTFE PO BO """ JOGSBTUSVDUVSF
0UIFS BMUFSOBUJWFT NBZ CF DPOTJEFSFE
BTPQUJNJTBUJPOTCVUTPGBSUIFHSPVQ
IBTOPUBEPQUFEBOZPGUIFN
QPSU QSPUPDPM UIBU XJMM DBSSZ JOGPSNBUJPO
Network-Based Localised
Mobility Management WG
ɩFOFUMNN8(GPDVTFTPOBOBMZT
JOHUIFQSPCMFNTDPQFBOEPOEFTJHO
JOH QSPUPDPMT GPS MPDBMJTFE NPCJMJUZ
NBOBHFNFOU*ODPOUSBTUUPPUIFSFG
GPSUTUIFXPSLJOOFUMNNXJMMBEESFTT
UIFDPOEJUJPOPGOPUQMBDJOHBEEJUJPOBM
GVODUJPOBMJUZGPSUIFNPCJMJUZNBOBHF
NFOUPOUIF./UIBUJTUIFDPNQMFUF
NPCJMJUZNBOBHFNFOUXJMMCFIBOEMFE
JOTJEFUIFOFUXPSL
ɩF8(IBTBMSFBEZQSPEVDFEEPD
VNFOUTEFTDSJCJOHUIFQSPCMFNTUBUF
NFOU BOE HPBMT GPS OFUXPSLCBTFE
MPDBMJTFE NPCJMJUZ NBOBHFNFOU "
%5 XBT FTUBCMJTIFE UP QSPEVDF B
QSPUPDPM EFTJHO UIBU BEESFTTFT UIF
QSPCMFN TDPQF )PXFWFS SFDFOUMZ
PUIFS TUBOEBSEJTBUJPO CPEJFT JODMVE
JOH 8J.BY BOE (11 EFDMBSFE
UIFJS JOUFSFTU JO B EJĊFSFOU QSPUPDPM
GPS OFUXPSLCBTFE MPDBMJTFE NPCJMJUZ
NBOBHFNFOU OFUXPSLCBTFE .*1W
PS1SPYZ.*1W1.*1W
%FBMJOH
XJUIUIJTTJUVBUJPOIBTCFFOBDFOUSBM
UPQJDPGSFDFOUNBJMJOHMJTUEJTDVTTJPOT
BOEBMTPBUUIF8(NFFUJOHIFMEEVS
JOH*&5'"UUIFCFHJOOJOHPGUIF
NFFUJOH UIF "SFB %JSFDUPS EFDMBSFE
UIF CBTJD SVMFT GPS GPMMPXJOH EJTDVT
TJPOT 8IJDIFWFS QSPUPDPM XJMM CF
TFMFDUFE OFFET UP BEESFTT DVSSFOUMZ
EPDVNFOUFE GVODUJPOBMJUZ SFRVJSF
NFOUTBOEUIFBHSFFEMJOLNPEFMQFS
./QSFmYBTTJHONFOU
BOEJUXJMMOFFE
UP GPMMPX UIF VTVBM 4UBOEBSET 5SBDL
SFRVJSFNFOUT
8JUI SFHBSE UP UIF TFDPOE QBSU PG
UIF DIBSUFS UIF *&&& .FEJB
*OEFQFOEFOU )BOEPĊ .*)
XPSL
JOHHSPVQJTMPPLJOHBUQSPWJEJOHTFS
WJDFT UP BTTJTU XJUI IBOEPĊT CFUXFFO
IFUFSPHFOFPVT MJOLMBZFS UFDIOPMPHJFT
BOE BDSPTT *1 TVCOFUT ɩF JOGPSNB
UJPO FYDIBOHFT EFmOFE CZ *&&&
QSPWJEF UPQPMPHJDBM BOE MPDB
UJPOSFMBUFE JOGPSNBUJPO PG TFSWJDF
OFUXPSLT UJNFMZ DPNNVOJDBUJPOT PG
XJSFMFTT FOWJSPONFOU JOGPSNBUJPO
BOE DPNNBOET UIBU DBO DIBOHF UIF
TUBUFPGUIFXJSFMFTTMJOLɩFNJQTIPQ
8(JTDIBSUFSFEUPEFmOFUIFEFMJWFSZ
PG JOGPSNBUJPO GPS .*) TFSWJDFT JO
ɩF UISFF DBOEJEBUF QSPUPDPMT DVS
DBTFUIFZBSFEFMJWFSFEWJBMBZFS
SFOUMZ BWBJMBCMF IBWF CFFO QSFTFOU
ɩF XPSLJOH HSPVQ JT FYBNJOJOH FE‰JODMVEJOH UIF QSPUPDPM EFTJHOFE
UIFQSPCMFNTUBUFNFOUEPDVNFOUUIBU CZUIFOFUMNN%5BOBQQSPBDICBTFE
JTJOUIFQSPDFTTPGCFJOHBEPQUFEBTB PO%ZOBNJD)PTU$POmHVSBUJPO1SP
XPSLEPDVNFOU*OBEEJUJPOB%FTJHO UPDPM%)$1
BOE1.*1WUIFMBTU
5FBNIBTCFFODSFBUFEUPQSPEVDFUIF
mSTU WFSTJPO PG UIF TPMVUJPO PO USBOT
Continued on next page
11
IETF Journal
IETF 67 • November 2006 • Volume 2, Issue 3
BVUIPSJTF UIF VTBHF PG .PCJMF *1W
Diameter Maintenance
and
Extensions
WG
CBTFE PO VTFS QSPmMF UP QFSGPSN BD
PG XIJDI JT BWBJMBCMF JO UXP EJĊFSFOU
JOEJWJEVBM ESBGUT ɩF %5 QSPUPDPM ɩF %JBNFUFS .BJOUFOBODF BOE DPVOUJOHPQFSBUJPOTCBTFEPOUIFQBDL
IBT CFFO GVSUIFS VQEBUFE BOE OPX &YUFOTJPOT %*.&
8( GPDVTFT PO FUTFYDIBOHFECZUIFNPCJMFOPEFBOE
TVQQPSUTNJYFE*1WBOE*1WJOGSB UIF NBJOUFOBODF PG BOE FYUFOTJPOT UP NBJOUBJO UIF TFSWJDF BCPSUJOH UIF
TUSVDUVSFTCZVTJOHBOJEFOUJUZMPDBUPS UP UIF %JBNFUFS 1SPUPDPM SFRVJSFE UP TFTTJPO XIFO OFDFTTBSZ ɩF EFTJHO
TQMJU 'VSUIFSNPSF PQUJNJTFE IBO FOBCMF JUT VTF JO BQQMJDBUJPOT TVDI BT PGUIF%JBNFUFSTVQQPSUGPSUIJTDPN
EPWFS CBTFE PO B NBLFCFGPSFCSFBL *1 NPCJMJUZ BOE MPDBM BSFB OFUXPSL NVOJDBUJPOJTJOBQSFMJNJOBSZQIBTF
BQQSPBDI JT QPTTJCMF ɩF 1.*1W BVUIFOUJDBUJPO BVUIPSJTBUJPO BOE ɩF NBJO EJTDVTTJPO IBT CFFO BCPVU
QSPUPDPM JOUSPEVDFT B OFX FOUJUZ UIF BDDPVOUJOH ɩJT SFWJFX GPDVTFT POMZ XIFUIFSBVUIFOUJDBUJPOBOEBVUIPSJTB
1SPYZ.PCJMF"HFOUXIJDIJTBLJOE PO UIF POHPJOH XPSL BCPVU .PCJMF UJPOTIPVMECFEPOFUISPVHIUIFTBNF
PG .*1W GPSFJHO BHFOU TJUUJOH PO *1WBVUIFOUJDBUJPOBOEBVUIPSJTBUJPO BQQMJDBUJPO PS WJB EJĊFSFOU POFT ɩF
UIF BDDFTT SPVUFS "3
#FUXFFO "3 BOEEPFTOPUJODMVEFBOZEFUBJMTPGUIF EJTDVTTJPOPOUIJTUPQJDJTPOHPJOH
BOE./BTFDVSFQPJOUUPQPJOUMJOL XPSLCFJOHEPOFPO2VBMJUZPG4FSWJDF
ɩF TFDPOE EPDVNFOU GPDVTFT PO
XJMMCFFTUBCMJTIFEɩF1SPYZ.PCJMF BOE3'$SFWJFX
DPNNVOJDBUJPO CFUXFFO UIF """
"HFOUXJMMIBOEMFNPCJMJUZPOCFIBMG
ɩFQVSQPTFPGUIFXPSLPONPCJM TFSWFS BOE UIF /"4 BOE JT FYQFDUFE
PGUIF./VTJOHGVODUJPOBMJUZTJNJMBS
JUZJTUPEFTJHOPOFPSNPSF%JBNFUFS UP EFmOF UIF FYUFOTJPOT UP DVSSFOU
UP.*1WT6OEFSUIF%)$1CBTFE
BQQMJDBUJPOT JO PSEFS UP BVUIFOUJDBUF %JBNFUFS BQQMJDBUJPOT UIBU BSF OFFE
BQQSPBDI UIF NPCJMJUZ BODIPS QPJOU
BOEBVUIPSJTFUIF.PCJMF*1WTFSWJDF FE UP DBSSZ .PCJMF *1W JOGPSNBUJPO
SVOT B %)$1 TFSWFS XIJMF UIF "3T
GPSBTQFDJmDVTFSXIJDIJODMVEFTBV UP UIF OFUXPSL BDDFTT TFSWFS /"4
SVOB%)$1DMJFOUBOEB%)$1SFMBZ
UIFOUJDBUJPOPGVTFSDSFEFOUJBMTEVSJOH ɩF QVSQPTF JT UIBU UIF /"4 BDUJOH
GVODUJPOBMJUZJOQBSBMMFM./TBSFBCMF
UPVTFTUBUFMFTTBEESFTTBVUPDPOmHVSB
UJPOPS%)$1%)$1JTBMTPVTFEBT
The purpose of the work on mobility is to design one or more
QSPUPDPM UP DBSSZ NPCJMJUZ NBOBHF
NFOU JOGPSNBUJPO CFUXFFO UIF ."1 Diameter applications in order to authenticate and authorise
BOE"3T
the Mobile IPv6 service for a specific user, which includes
Mobility, continued from page 11
"UUIFFOEPGUIFNFFUJOHNVMUJQMF
DPOTFOTVT DBMMT XFSF QFSGPSNFE BOE
UIFSF JT DMFBS DPOTFOTVT GPS QSPDFFE
JOHXJUIPOMZBTJOHMFQSPUPDPMXJUIJO
OFUMNN *O UFSNT PG XIJDI QSPUP
DPM UIJT TIPVME CF UIF %)$1CBTFE
BQQSPBDI IBT CFFO SVMFE PVU CVU UIF
1.*1W QSPUPDPM IBE POMZ TMJHIUMZ
NPSF TVQQPSU UIBO UIF OFUMNN %5
QSPUPDPMEJE*OBOPUIFSDPOTFOTVTDBMM
DPODFSOJOH XIFUIFS UIF 8( XPVME
CF DPNGPSUBCMF NPWJOH BIFBE XJUI
UIF1.*1WBQQSPBDIJUXBTEFDJEFE
UIBU UIF OFUMNN 8( XJMM DPOUJOVF
UP XPSL PO UIF CBTJT PG UIF 1.*1W
QSPUPDPM %FDJEJOH XIJDI POF PG UIF
UXP BWBJMBCMF JOEJWJEVBM ESBGUT XJMM
TFSWFBTUIFCBTJTTUJMMOFFETUPCFTPSU
FEPVUPOUIFNBJMJOHMJTU
authentication of user credentials during the bootstrapping
phase and authorisation of service when the user starts to
use Mobile IPv6.
BT %)$1 SFMBZ NBZ QSPWJEF IPNF
BHFOU BOE IPNF BEESFTT JOGPSNBUJPO
GPSUIFNPCJMFOPEFCZVTJOH%)$1
ɩJT FYUFOTJPO JT EFTJHOFE GPS UIF
TPDBMMFE JOUFHSBUFE TDFOBSJP JEFOUJ
mFE CZ UIF NJQ 8( UIBU JT XIFO
UIF NPCJMJUZ TFSWJDF JT BVUIPSJTFE CZ
UIF TBNF FOUJUZ UIBU BVUIPSJTFT UIF
#BTFE PO XPSL EPOF JO UIF NJQ
OFUXPSLBDDFTTTFSWJDF
8( PO .PCJMF *1W CPPUTUSBQ
QJOH UIF %*.& 8( JT XPSLJOH PO DzJT JT UP BDLOPXMFEHF UIBU UIF XSJUJOH
UXP EJĊFSFOU EPDVNFOUT ɩF mSTU PGUIJTSFWJFXIBTCFFOQBSUJBMMZTVQQPSUFE
EPDVNFOU GPDVTFT PO DPNNVOJDBUJPO CZUIF&VSPQFBO$PNNJTTJPOT*OGPSNB
CFUXFFOUIF)"BOEUIF"""TFSWFS UJPO 4PDJFUZ 5FDIOPMPHJFT 4JYUI 'SBNF
ɩJT DPNNVOJDBUJPO JT OFFEFE JO PS XPSL1SPHSBNNF&/"#-&QSPKFDU
UIFCPPUTUSBQQJOH QIBTF BOEBVUIPSJ
TBUJPO PG TFSWJDF XIFO UIF VTFS TUBSUT
UPVTF.PCJMF*1WɩF.*18(JT
mOBMJTJOHUIFSFRVJSFNFOUTEPDVNFOU
UIBU XJMM JODMVEF BMM PG UIF HPBMT UIF
%JBNFUFS BQQMJDBUJPOT
EFTJHO NVTU
GVMmM
EFS UP BVUIFOUJDBUF UIF VTFS EVSJOH
UIFTFSWJDFCPPUTUSBQQJOHUPFYQMJDJUMZ
12
IETF Journal
E-mail Address
Internationalisation (EAI)
By Marcos Sanz
DzJTBSUJDMFEPFTOPUBUUFNQUUPQSPWJEFBDPNQMFUFTVNNBSZPGBMM*&5'BDUJWJUJFTJO
UIJTBSFB*USFnFDUTUIFBVUIPSTQFSTPOBMQFSTQFDUJWFPOTPNFDVSSFOUIJHIMJHIUT
4
IPSUMZBGUFSUIFJOUFSOBUJPOBMJTFEFNBJMBOEFYUFOTJPOT*&&
#P'UIBUXBTSFQPSUFEJOUIF*&5'+PVSOBM7PMVNF*TTVF
BOFXXPSLJOHHSPVQJOUIF"QQMJDBUJPOT"SFBXBTGPSNFEDBMMFE
&NBJM"EESFTT*OUFSOBUJPOBMJTBUJPOPS&"*ɩF8(DIBJSFECZ
9JBPEPOH-FFBOE)BSBME"MWFTUSBOEIBTNFUUISFFUJNFTBU*&5'
NFFUJOHTBOEIBTIFMEPOFJOUFSJNNFFUJOHJO#FJKJOH
"TPGUIJTXSJUJOHUIF8(IBTUIF
DzF GPMMPXJOH DIBSUFS JT FYDFSQUFE GSPN
IUUQXXXJFUGPSHIUNMDIBSUFST GPMMPXJOH*OUFSOFU%SBGUTJOUIFBHFO
FBJDIBSUFSIUNM
EB"MMXFSFEJTDVTTFEBU*&5'JO
/PWFNCFS
ɩJT XPSLJOH HSPVQ XJMM BEESFTT
POFCBTJDBQQSPBDIUPFNBJMJOUFSOB t ESBGUJFUGFBJGSBNFXPSL
1SFTFOUT BO PWFSWJFX PG BOE UIF
UJPOBMJTBUJPO ɩBU BQQSPBDI JT CBTFE
GSBNFXPSL GPS UIF BQQSPBDI EF
POUIFVTFPGBO4.51<4JNQMF.BJM
TDSJCFE
JO UIF DIBSUFS ɩJT JT B
5SBOTGFS1SPUPDPM>FYUFOTJPOUPFOBCMF
HPPE POFTUPQ SFBEJOH JG ZPV XBOU
CPUIUIFVTFPG65'<CJUVOJDPEF
UPRVJDLMZmOEPVUIPXBMMPGUIJTJT
USBOTGPSNBUJPO GPSNBU> JO FOWFMPQF
TVQQPTFEUPXPSL
BEESFTT MPDBMQBSUT BOE PQUJPOBMMZ JO
EPNBJOQBSUT BOE UIF VTF PG 65' t ESBGUJFUGFBJTDFOBSJPT
JONBJMIFBEFST‰CPUIJOBEESFTTDPO
%FTDSJCFTQPTTJCMFTDFOBSJPTUIBUBO
&"*TPMVUJPOXJMMIBWFUPEFBMXJUI
UFYUTBOEXIFSFWFSFODPEFEXPSETBSF
EFmOJOHXIBUUIFBDDFQUBCMFCFIBW
QFSNJUUFEUPEBZ*UTJOJUJBMUBSHFUXJMM
CF B TFU PG FYQFSJNFOUBM 3'$T UIBU
JPVS GPS B UFDIOJDBM TPMVUJPO XPVME
TQFDJGZ UIF EFUBJMT PG UIJT BQQSPBDI
CF BOE UIVT DPOTUSBJOJOH UIF TQBDF
BOE QSPWJEF UIF CBTJT GPS HFOFSBUJOH
PGQPTTJCMFBMUFSOBUJWFT
BOEUFTUJOHJOUFSPQFSBCMFJNQMFNFOUB t ESBGUJFUGFBJTNUQFYU
UJPOT*UTXPSLXJMMJODMVEFFYBNJOJOH
%FTDSJCFTBO4.51TFSWJDFFYUFO
XIFUIFSiEPXOHSBEJOHw‰USBOTGPSN
TJPOUIBUFOBCMFTNBJMUSBOTNJTTJPO
JOH BO JOUFSOBUJPOBMJTFE NFTTBHF UP
BHFOUT.5"T
UPTJHOBMJTFUPUIFJS
POFUIBUJTDPNQBUJCMFXJUIVOFYUFOE
DMJFOUT&"*TVQQPSU
FE4.51DMJFOUTBOETFSWFSTBOEVO
t ESBGUJFUGFBJVUGIFBEFST
FYUFOEFE.6"<NBJMVTFSBHFOU>‰JT
%FmOFTBSFQSFTFOUBUJPO‰JO65'
GFBTJCMF BOE BQQSPQSJBUF BOE JG JU JT
‰PG DFSUBJO NBJM IFBEFS mFME
TQFDJGZJOHBXBZUPEPTP*GJUJTOPU
CPEJFT
UIF8(XJMMFWBMVBUFXIFUIFSUIFFG
GPSU JT XPSUI UBLJOH GPSXBSE 0UIFS t ESBGUJFUGFBJEPXOHSBEF
%FmOFT NFDIBOJTNT GPS CBDLXBSE
BQQSPBDIFT NBZ CF DPOTJEFSFE CZ UIF
DPNQBUJCJMJUZTPUIBU&"*NBJMDBO
GPSNBUJPOPGPUIFSXPSLJOHHSPVQT
CF USBOTQPSUFE FWFO UISPVHI OPO
IETF 67 • November 2006 • Volume 2, Issue 3
&"*BXBSF .5"T %PXOHSBEJOH
JTUIFHFOFSJDUFSNVTFEGPSBOZLJOE
PGDPOWFSTJPONFDIBOJTNFNQMPZFE
GPSBMMPXJOHUIJT
t ESBGUJFUGFBJNBJMJOHMJTU
*MMVTUSBUFT JTTVFT XJUI NBJMJOH MJTUT
UIBUOFFEUPCFDPOTJEFSFEBOEUIBU
BSFOPUMJTUFEJOUIFTDFOBSJPTEPDV
NFOU .BJMJOH MJTUT BSF JOUFSFTUJOH
FOWJSPONFOUTJOBTNVDIBTNBJMTBSF
SFDFJWFECZTPGUXBSFBOEUIFOSFJO
KFDUFE JOUP NBJM USBOTQPSU GPS VTFST
UPSFDFJWFNBOZPGXIPNXJUIPVU
BOZBQSJPSJLOPXMFEHFPOUIFPSJHJ
OBMTFOEFSTTJEFNJHIUPSNJHIUOPU
CFVTFSTPG&"*BEESFTTFT
t ESBGUJFUGFBJQPQ
&YUFOET UIF 1PTU 0ċDF 1SPUPDPM
WFSTJPO 101
3'$ UP
TVQQPSU XJUIPVU FODPEJOHT DIBSBD
UFST CFZPOE "4$** JO VTFS OBNFT
NBJM BEESFTTFT BOE PUIFS NFTTBHF
IFBEFST ɩJT EPDVNFOU BMTP UBLFT
UIFPQQPSUVOJUZUPTVQQPSUMPDBMJTB
UJPO PG QSPUPDPMMFWFM UFYUVBM FSSPST
JOUPEJĊFSFOUMBOHVBHFT
t ESBGUJFUGFBJJNBQVUG
&YUFOET UIF *OUFSOFU .FTTBHF "D
DFTT1SPUPDPMWFSTJPOSFW*."1
3'$
UPTVQQPSUXJUIPVUFO
DPEJOHT DIBSBDUFST CFZPOE "4$**
JO VTFS OBNFT NBJM BEESFTTFT BOE
PUIFSNFTTBHFIFBEFST
%VSJOHUIFNPTUSFDFOUHSPVQNFFU
JOH JU XBT EFDJEFE UIBU UIF GSBNF
XPSLEPDVNFOUXBTSFBEZUPHPUPUIF
*&4( BGUFS QBTTJOH XPSLJOH HSPVQ
-BTU$BMM *U CFDBNF DMFBS UPP UIBU
B OFX EPDVNFOU PO B TFSWJDF FYUFO
TJPO UP %FMJWFSZ 4UBUVT /PUJmDBUJPOT
%4/
GPS 4.51 DG 3'$ XJUI &"* TVQQPSU XBT OFDFTTBSZ "
IJHIOPUFEVSJOHUIFNFFUJOHXBTUIF
SFBDIJOH PG DPOTFOTVT PO SFQSFTFOUB
UJPO PG BO BMUFSOBUJWF "4$** BEESFTT
GPSBHJWFO&"*ɩJT"4$**BEESFTT
XPVMECFTQFDJmFECZUIFVTFS‰JGJUJT
LOPXO UP UIF VTFS BU UIF NPNFOU PG
Continued on next page
13
IETF Journal
IETF 67 • November 2006 • Volume 2, Issue 3
XIFO JUT PVUTJEF RVPUFT BOE 3'$
NFDIBOJTNT XIFO JUT JOTJEF
NBJM TVCNJTTJPO‰BOE JU XPVME UIFO
RVPUFT"MUFSOBUJWFMZJUDPVMECFQPT
MPPLMJLFUIJT
TJCMFUPEFQSFDBUF3'$BOEVTF
VUG!VUGBTDJJ!BTDJJ
UIF3'$UFDIOJRVF
EAI, continued from page 13
'PSJOTUBODF
DIJNÊSF!FYBNQMFOFU
DIJNBFSF!FYBNQMFOFU
6OGPSUVOBUFMZUIFSFXFSFEJTBHSFF
NFOUT JO UIF SPPN BT XFMM ɩFSF JT
TUJMMPOHPJOHEJTDVTTJPOBCPVUXIFUIFS
UIF JOUSPEVDUJPO PG B NBSLFS IFBEFS
mFMEUIBUXPVMEJEFOUJGZBNFTTBHFJO
USBOTJUPSOPU
BTBO&"*NBJMJTSFBMMZ
OFDFTTBSZ "MTP DPOUSPWFSTJBM XBT UIF
JTTVFPGUIFBQQFBSBODFPGSBX65'
JO NVMUJQVSQPTF *OUFSOFU NBJM FYUFO
TJPO .*.&
IFBEFST B VTVBM TJUVB
UJPOXIFOEFBMJOHXJUImMFOBNFTGPS
JOTUBODF
BOE IPX UP IBOEMF JU 0OF
QPTTJCJMJUZ DPVME CF UP EPXOHSBEF JU
CZ NFBOT PG 3'$ NFDIBOJTNT
References
3'$101&YUFOTJPO.FDIB
OJTN3(FMMFOTFUBM/PW
3'$ *OUFSOFU .FTTBHF "DDFTT
1SPUPDPM 7FSTJPO SFW . $SJTQJO
3FHBSEJOH UIF SVOOJOHDPEF QBSU .BSDI
PG UIF QSPWFSCJBM TBZJOH UIFSFT BO
JNQMFNFOUBUJPOJO1FSMCZUIF5BJXBO 3'$ 4JNQMF .BJM 5SBOTGFS
/FUXPSL*OGPSNBUJPO$FOUSF58/ 1SPUPDPM 4.51
4FSWJDF &YUFO
*$
CBTFE PO TFOENBJM UPHFUIFS XJUI TJPOGPS%FMJWFSZ4UBUVT/PUJmDBUJPOT
.JMUFS BOE .JNFEFGBOH *O QBSBMMFM %4/T
,.PPSF+BO
UIF$IJOB*OUFSOFU/FUXPSL*OGPSNB 3'$ .*.& .VMUJQVSQPTF
UJPO $FOUSF $//*$
IBT EFWFMPQFE *OUFSOFU.BJM&YUFOTJPOT
1BSUɩSFF
BO JNQMFNFOUBUJPO CBTFE PO RNBJM .FTTBHF)FBEFS&YUFOTJPOTGPS/PO
ɩF FYJTUFODF PG UXP JOEFQFOEFOU "4$**5FYU,.PPSF/PW
JNQMFNFOUBUJPOT IBT BMMPXFE GPS JO 3'$ .*.& 1BSBNFUFS 7BM
UFSDPNQBUJCJMJUZUFTUT
VF BOE &ODPEFE 8PSE &YUFOTJPOT
*G ZPV XBOU UP HFU JOWPMWFE EP JU $IBSBDUFS 4FUT -BOHVBHFT BOE
OPXCFDBVTFUIFDVSSFOUQMBOTPGUIJT $POUJOVBUJPOT / 'SFFE , .PPSF
IBSEXPSLJOH HSPVQ BSF UP IBWF BMM /PW
UIF EPDVNFOUT SFBEZ CFGPSF UIF OFYU
*&5'NFFUJOHJO1SBHVF
Interactive Connectivity
Establishment:
NAT Traversal for the Session
Initiation Protocol
By Jonathan Rosenberg, Cisco Systems
FE CZ EFWFMPQJOH B OFX TQFDJmDBUJPO
DBMMFE *OUFSBDUJWF $POOFDUJWJUZ &T
UBCMJTINFOU *$&
*$& JT B GPSN PG
QFFSUPQFFS/"5USBWFSTBMUIBUXPSLT
BTBOFYUFOTJPOUP4*1*OUIJTBSUJDMF
XFSFWJFXUIF/"5USBWFSTBMQSPCMFN
XFUPVDIPOBMUFSOBUJWFTPMVUJPOTBOE
XFCSJFnZPWFSWJFXIPX*$&XPSLT
DzJTBSUJDMFEPFTOPUBUUFNQUUPQSPWJEFBDPNQMFUFTVNNBSZPGBMM*&5'BDUJWJUJFTJO Introduction
UIJTBSFB*USFnFDUTUIFBVUIPSTQFSTPOBMQFSTQFDUJWFPOTPNFDVSSFOUIJHIMJHIUT
8PSL PO UIF 4FTTJPO *OJUJBUJPO 1SP
UPDPM mSTU CFHBO JO UIF *&5' JO
IF 4FTTJPO *OJUJBUJPO 1SPUPDPM 4*1
IBT TFFO XJEFTQSFBE UIF NJET *U JOJUJBMMZ UBSHFUFE
VTBHFPOUIF*OUFSOFUGPSWPJDFPWFS*17P*1
*UTFUTVQNBO TVQQPSUJOH JOWJUBUJPOT UP MBSHFTDBMF
BHFTBOEUFBSTEPXOCJMMJPOTPGNJOVUFTPGDBMMTFBDIZFBSBOEUIF NVMUJDBTU DPOGFSFODFT PO UIF NCPOF
NVMUJDBTU CBDLCPOF
CVU RVJDLMZ
OVNCFSDPOUJOVFTUPSJTF)PXFWFSEFQMPZNFOUPG4*1IBTOPUCFFO GPVOE JUT QSJNBSZ BQQMJDBUJPO GPS UIF
XJUIPVUJUTDIBMMFOHFT1FSIBQTNPTUTJHOJmDBOUBNPOHUIPTFDIBM TJHOBMMJOHPGQPJOUUPQPJOUWPJDFPWFS
*1*UXBTQVCMJTIFEBT3'$JO
5P EBUF UIJT QSPCMFN IBT CFFO BOEXBTSFWJTFEJO+VOFBT
MFOHFT JT USBWFSTBM UISPVHI OFUXPSL
BEESFTTUSBOTMBUPS/"5
BOEUISPVHI TPMWFE UISPVHI QSPQSJFUBSZ BOE FY 3'$POFPGUIFMPOHFTU3'$T
mSFXBMM EFWJDFT XIJDI IBWF CFDPNF QFOTJWF UFDIOJRVFT UIBU IBWF IBE FWFSUPCFQSPEVDFECZUIF*&5'CVU
DPNNPOQMBDF PO UIF *OUFSOFU BOE BOFHBUJWFJNQBDUPOTFDVSJUZBOEJO BMTPPOFPGUIFNPTUTVDDFTTGVM
XJUIJOQSJWBUF*1OFUXPSLT
UFSPQFSBCJMJUZɩF*&5'IBTSFTQPOE
5
14
IETF Journal
4*1IBTTFFOXJEFTQSFBEVTBHFBOE
EFQMPZNFOU JO CPUI UIF QVCMJD *OUFS
OFUBOEQSJWBUF*1OFUXPSLT#JMMJPOT
PG NJOVUFT PG 7P*1 DBMMT FBDI ZFBS
BSF NBOBHFE CZ 4*1 4*1 JT VTFE JO
TNBMMFOUFSQSJTF 1#9 TZTUFNT DPO
TVNFS 7P*1 TFSWJDFT TVDI BT 7POBHF
BOE 4VO3PDLFU UFMFQIPOZ CBDLCPOF
OFUXPSLT BOE FOUFSQSJTF DPMMBCPSB
UJPO TFSWJDFT ɩFSF BSF IVOESFET PG
JOEFQFOEFOUJNQMFNFOUBUJPOTEP[FOT
PGPQFOTPVSDFDPEFCBTFTBOEFWFOB
NBHB[JOFEFEJDBUFEUPUIFUFDIOPMPHZ
#ZBMMNFUSJDT4*1IBTCFFOBTVDDFTT
)PXFWFS JUT TVDDFTT IBT OPU DPNF
XJUIPVU EJċDVMUJFT 1FSIBQT NPTU
TJHOJmDBOU BNPOH UIFN IBT CFFO
UIF QSPMJGFSBUJPO PG OFUXPSL BEESFTT
USBOTMBUPSBOEmSFXBMMEFWJDFT4*1XBT
EFTJHOFECFGPSFUIPTFEFWJDFTCFDBNF
DPNNPOQMBDF BOE DPOTFRVFOUMZ JU
EPFTOPUPQFSBUFTVDDFTTGVMMZUISPVHI
/"5BTPSJHJOBMMZTQFDJmFE"T/"5
BOEmSFXBMMTQSPMJGFSBUFEUIFNBSLFU
SFTQPOEFE CZ BEEJOH TFWFSBM QSPQSJ
FUBSZ DPNQPOFOUT BOE UFDIOJRVFT UP
7P*1 OFUXPSLT ɩFTF JODMVEF BQQMJ
DBUJPOMBZFSHBUFXBZT"-(T
FNCFE
EFEXJUIJO/"5BOEmSFXBMMEFWJDFT
BT XFMM BT FYUFSOBMJTFE "-(T LOPXO
BT TFTTJPO CPSEFS DPOUSPMMFST 4#$T
ɩPVHI UIFZ QSPWJEFE B QBUI GPS
UIF HSPXUI PG 7P*1 PO UIF *OUFSOFU
UIFZCSPVHIUBIPTUPGQSPCMFNTXJUI
UIFNBOEBTUBOEBSEJTFETPMVUJPOXBT
SFRVJSFE
IETF 67 • November 2006 • Volume 2, Issue 3
What Is the Problem,
Anyway?
/"5PQFSBUFTCZSFXSJUJOHUIF*1BE
ESFTTFT JO UIF *1 IFBEFST BT QBDLFUT
QBTT GSPN POF JOUFSGBDF UP UIF PUIFS
8IFO B QBDLFU JT TFOU GSPN UIF iJO
TJEFwPGUIF/"5UPXBSEUIFiPVUTJEFw
UIF TPVSDF *1 BEESFTT BOE QPSU BSF
SFXSJUUFO GSPN UIF BEESFTT TQBDF PO
UIFJOTJEFVTVBMMZQSJWBUF*1BEESFTT
TQBDF
JOUP UIF BEESFTT TQBDF PO UIF
PVUTJEF 4JNJMBSMZ QBDLFUT GSPN UIF
PVUTJEFUPUIFJOTJEFIBWFUIFEFTUJOB
UJPO BEESFTT BOE QPSU SFXSJUUFO GSPN
UIFBEESFTTTQBDFPOUIFPVUTJEFUPUIF
POFPOUIFJOTJEF5ZQJDBMMZ/"5XJMM
SFXSJUF UIF BEESFTTFT CZ NBJOUBJOJOH
B UBCMF PG CJOEJOHT UIBU NBQ FBDI
JOUFSOBM*1BEESFTTBOEQPSUUPBOFY
UFSOBM*1BEESFTTBOEQPSU"CJOEJOH
JT DSFBUFE EZOBNJDBMMZ XIFO UIF mSTU
QBDLFU GSPN B QBSUJDVMBS JOUFSOBM *1
BEESFTTBOEQPSUBSSJWFTBUUIF/"5
ɩF QSPDFTT JT TIPXO QJDUPSJBMMZ JO
'JHVSF
UIFQBDLFUJUTFMG‰BOBSFBOPUUPVDIFE
CZ UIF /"5 1SPUPDPMT TVDI BT 4*1
XIPTF KPC JT UP FTUBCMJTI NVMUJNFEJB
TFTTJPOT CFUXFFO IPTUT PO UIF *OUFS
OFU GVOEBNFOUBMMZ SFRVJSF *1 BE
ESFTTFTBOEQPSUTJOUIFJSQBZMPBE'PS
UIFTF QSPUPDPMT UIF /"5 DPNQMFUFMZ
CSFBLTUIFJSPQFSBUJPO
" TJNQMF FYBNQMF DBO IFMQ JMMVT
USBUF $POTJEFS "MJDF XIP XJTIFT
UP QMBDF B DBMM UP #PC ɩJT JT EPOF
JO 4*1 CZ TFOEJOH BO 4*1 */7*5&
NFTTBHF ɩF */7*5& NFTTBHF DPO
UBJOT "MJDFT *1 BEESFTT BOE QPSU
XIFSF "MJDF FYQFDUT UP SFDFJWF NFEJB
QBDLFUT8IFO#PCSFDFJWFTUIFNFT
TBHFBOEBOTXFSTUIFDBMMIFTFOETIJT
NFEJBQBDLFUTUPUIBU*1BEESFTTBOE
QPSUɩJTBMMPXTUIFMBUFODZTFOTJUJWF
NVMUJNFEJB USBċD UP NBLF JUT XBZ
EJSFDUMZGSPN#PCUP"MJDF*G"MJDFJT
CFIJOEB/"5IFS*/7*5&NFTTBHF
XJMMDPOUBJOBQSJWBUFBEESFTT"TUIF
4*1NFTTBHFQBTTFTUISPVHIUIF/"5
UIF /"5 XJMM SFXSJUF UIF TPVSDF *1
BEESFTTPGUIF4*1QBDLFUCVUXJMMOPU
UPVDIJUTDPOUFOUT8IFOUIFNFTTBHF
BSSJWFTGPS#PCUIFBEESFTTJOEJDBUFE
XJUIJOJUTQBZMPBEXJMMJONPTUDBTFT
OPUCFSFBDIBCMFCZIJN$POTFRVFOU
MZNFEJBUSBċDXJMMOPUnPX
The Market Responds
ɩF NBSLFU RVJDLMZ SFTQPOEFE UP
UIF USBċD nPX QSPCMFN XJUI TFWFSBM
TPMVUJPOT ɩF UXP NPTU DPNNPO BSF
UIFBQQMJDBUJPOMBZFSHBUFXBZBOEUIF
TFTTJPOCPSEFSDPOUSPMMFS
ɩF*&5'SFTQPOEFEUPUIJTOFFECZ
UIFDSFBUJPOPGBOFXTQFDJmDBUJPOUIBU
BVHNFOUT 4*1 XJUI SPCVTU BOE MPX
"O "-( JT BO BQQMJDBUJPOMBZFS
DPTU/"5USBWFSTBMɩJTTQFDJmDBUJPO
DPNQPOFOU XIPTF GVODUJPOBMJUZ JT
*OUFSBDUJWF $POOFDUJWJUZ &TUBCMJTI
SFTJEFOUJOUIF/"5JUTFMGɩF/"5
NFOU XBT QSPEVDFE CZ UIF NNVTJD Figure 1: NAT Operation
JOTQFDUT 4*1 QBDLFUT BT UIFZ USBOTJU
XPSLJOH HSPVQ JO UIF OFXMZ GPSNFE
UIF/"5*OTUFBEPGKVTUJHOPSJOHUIF
ɩJT LJOE PG USBOTMBUJPO XPSLT KVTU DPOUFOU PG UIF QBDLFUT BT B OPSNBM
3FBMUJNF "QQMJDBUJPOT BOE *OGSB
TUSVDUVSF 3"*
"SFB *$& JT JO JUT mOFGPSNBOZQSPUPDPMT)551101 /"5 EPFT UIF "-( USBOTMBUFT UIF
mOBMTUBHFTPGTQFDJmDBUJPOBOETIPVME BOE 4.51 GPS FYBNQMF XPSL mOF *1 BEESFTTFT XJUIJO UIF CPEZ PG UIF
UISPVHI TVDI EFWJDFT ɩJOHT CSFBL 4*1NFTTBHFNBUDIJOHUIFNXJUIUIF
CFDPNQMFUFJOFBSMZ
EPXO GPS QSPUPDPMT UIBU DBSSZ *1 USBOTMBUFETPVSDF*1BEESFTT*OTPNF
BEESFTTFTBOEQPSUTJOUIFQBZMPBEPG
Continued on next page
15
IETF Journal
ICE, continued from page 15
SFHBSETUIJTJTUIFPCWJPVTTPMVUJPOUP
UIFQSPCMFNɩF/"5JTUIFFMFNFOU
UIBUCSPLF4*1TPJUTIPVMEmYJU*UJT
DPNQMFUFMZ USBOTQBSFOU UP 4*1 DMJFOUT
BOETFSWFST
IETF 67 • November 2006 • Volume 2, Issue 3
*OTUFBE PG SFMZJOH PO "-(T NPTU
4*1OFUXPSLTIBWFNBEFVTFPGBDMPTF
DPVTJOPGUIF"-(UIFTFTTJPOCPSEFS
DPOUSPMMFSɩF4#$EPFTNBOZPGUIF
TBNFUIJOHTBO"-(EPFT*USFDFJWFT
4*1 QBDLFUT BOE SFXSJUFT UIPTF QPS
UJPOT PG UIF NFTTBHF UIBU DPOUBJO *1
BEESFTTJOGPSNBUJPO)PXFWFSXIFSF
BTBO"-(JTUSBOTQBSFOUBOENPEJmFT
QBDLFUTBTUIFZQBTTUISPVHIUIF/"5
UIF 4#$ MPPLT UP UIF PVUTJEF XPSME
ɩF mSTU BUUFNQU XBT DBMMFE NJE
DPN .JEEMFCPY $PNNVOJDBUJPOT
.JEDPN BMMPXT BO 4*1 QSPYZ TFSWFS
UPDPNNVOJDBUFXJUI/"5PSBmSF
XBMM UP BTL JU GPS FYQMJDJU USBOTMBUJPO
BOE QJOIPMF TFSWJDFT )PXFWFS UIF
QSPYZ JT TUJMM SFRVJSFE UP NPEJGZ UIF
4*1NFTTBHFSFTVMUJOHJONBOZPGUIF
TBNFQSPCMFNTUIBU4#$TIBE8PSTF
TUJMMNJEDPNXPSLTPOMZJOBSJHJETFU
6OMJLF "-(T XIJDI SFRVJSF
FWFSZ /"5 EFWJDF JO UIF OFUXPSL
UP CF VQHSBEFE B 7P*1 QSPWJEFS DBO
TJNQMZ BEE BO 4#$ UP JUT OFUXPSL
XJUIPVUDIBOHJOHUIF4*1DMJFOUTUIF
4*1TFSWFSTPSUIF/"5EFWJDFTJOUIF
SFTUPGUIFOFUXPSLɩJTNBLFT4#$T
SFMBUJWFMZFBTZUPEFQMPZXIJDIJTUIF
QSJNBSZSFBTPOGPSUIFJSTVDDFTTJOUIF
NBSLFU )PXFWFS 4#$T TIBSF NBOZ
PG UIF QSPCMFNT PG "-(T JODMVEJOH
CSFBLJOH 4*1 TFDVSJUZ NFDIBOJTNT
BOE NBLJOH JU EJċDVMU UP JOUSPEVDF
4*1 FYUFOTJPOT ɩF MBUUFS EFmDJFODZ
JT QBSUJDVMBSMZ QSPCMFNBUJD TJODF POF
PGUIFLFZTUSFOHUITPG4*1TEFTJHO‰
BOEPOFPGUIFSFBTPOTGPSJUTTVDDFTTJO
UIF NBSLFU‰IBT CFFO UIBU nFYJCJMJUZ
BOEBEBQUBCJMJUZ4#$TNBLF4*1OFU
XPSLTNVDINPSFSJHJE
/"5 456/
8JUI 456/
UIF 4*1 DMJFOU HFOFSBUFT B 456/
SFRVFTUUPB456/TFSWFSPOUIFQVCMJD
*OUFSOFUɩJTSFRVFTUDBVTFTUIF/"5
UPBMMPDBUFBCJOEJOHUPUIFDMJFOUɩF
456/TFSWFSTFOETBSFTQPOTFUPUIF
DMJFOU BOE XJUIJO JUT CPEZ SFUVSOT
UIFTPVSDF*1BEESFTTBOEQPSUPGUIF
SFRVFTU BT TFFO CZ UIF 456/ TFSWFS
ɩF DMJFOU UIFO VTFT UIJT *1 BEESFTT
BOEQPSUJOJUT4*1NFTTBHFT456/
IBT UIF CFOFmU PG CFJOH FYUSFNFMZ
MJHIUXFJHIU BOE TDBMBCMF *U BWPJET
BMM PG UIF TFDVSJUZ QJUGBMMT PG 4#$T
BOE "-(T )PXFWFS JU EPFT OPU
XPSL UISPVHI DFSUBJO UZQFT PG /"5
BOE JU GBJMT JO UPQPMPHJFT XIFSF CPUI
DBMMFS BOE DBMMFE QBSUZ IBQQFO UP CF
CFIJOEUIFTBNF/"5ɩJTMJNJUTJUT
BQQMJDBCJMJUZ
The IETF to the Rescue
4*1 "-(T IBWF GPVOE VTBHF QSJ
NBSJMZ JO FOUFSQSJTF FOWJSPONFOUT
)PXFWFS UIFZ BSF GBS GSPN SFQSF
TFOUJOHBOJEFBMTPMVUJPO#FDBVTFUIF
"-( OFFET UP JOTQFDU BOE NPEJGZ
UIF4*1QBDLFUTNBOZPG4*1TTFDV
SIP ALGs have found usage primarily in enterprise
SJUZ NFDIBOJTNT‰TVDI BT 4*1 PWFS
USBOTQPSUMBZFS TFDVSJUZ 5-4
4*1T
environments. However, they are far from representing
BOE 4*1 JEFOUJUZ ‰CSFBL XIFO VTFE an ideal solution. Because the ALG needs to inspect
XJUIBO"-(*OEFFEUIFTFTFDVSJUZ and modify the SIP packets, many of SIP’s security
NFDIBOJTNT OFFE UP CF EJTBCMFE GPS
mechanisms break when used with an ALG.
UIF "-( UP PQFSBUF ɩF SFBTPO JT
TJNQMFUIF"-(PQFSBUFTMJLFiBNBO
JOUIFNJEEMFwBOEJUTNPEJmDBUJPOPG MJLFBO4*1QSPYZBOEJTUIFEJSFDUUBS PG UPQPMPHJFT XIFSF UIF QSPYZ TFSWFS
4*1 QBDLFUT DBOOPU CF EJĊFSFOUJBUFE HFUGPS4*1SFRVFTUT#FDBVTFJUJTOPU LOPXT UIF MPDBUJPO PG UIF /"5T BOE
GSPNBNBOJOUIFNJEEMFBUUBDL
BUSBOTQBSFOUJOUFSNFEJBSZJUEPFTOPU mSFXBMMT BOE IBT B TUSPOH USVTU SFMB
"-(TBMTPNBLFJUFYUSFNFMZEJċ CSFBL4*1TFDVSJUZNFDIBOJTNTNFBOU UJPOTIJQ XJUI UIFN ɩJT MJNJUFE JUT
DVMUUPJOUSPEVDFFYUFOTJPOTUP4*1ɩF UPPQFSBUFCFUXFFO4*1FMFNFOUTTVDI BQQMJDBCJMJUZ BOE DPOTFRVFOUMZ NJE
"-(OFFETUPCF4*1BXBSFBOENVTU BT4*1PWFS5-4)PXFWFSTJODFUIF DPNIBTTFFOMJNJUFEVTBHF
CFQSPHSBNNFEXJUIBMM4*1GVODUJPOT 4#$ EPFT TUJMM NPEJGZ 4*1 QBDLFUT
ɩF OFYU TQFDJmDBUJPO UIBU XBT
UIBUNJHIUBĊFDU/"5USBWFSTBM4JODF JUEPFTCSFBLPUIFS4*1TFDVSJUZUFDI QSPEVDFEXBTTJNQMFUSBWFSTBMPG6TFS
UIF "-( JT QBSU PG UIF SPVUFS JUTFMG OJRVFTTVDIBT4*1JEFOUJUZ
%BUBHSBN 1SPUPDPM 6%1
UISPVHI
UIJT SFTVMUT JO 4*1 GVODUJPOBMJUZT CF
JOHCVJMUJOUPUIFOFUXPSL"EEJOHBO
FYUFOTJPO UP 4*1 UIBU JOUFSBDUT XJUI
/"5 USBWFSTBM SFRVJSFT TVQQPSU GSPN
FWFSZTJOHMF/"5UIBUNJHIUQPTTJCMZ
TFF4*1NFTTBHFT*OFTTFODFUIF*O
UFSOFUJUTFMGNVTUCFVQHSBEFEBTXFMM
ɩJTJTDPOUSBSZUPUIFWFSZOPUJPOPG
*1XIJDITFQBSBUFTUIFOFUXPSLGSPN
UIFBQQMJDBUJPOTUIBUSVOPOUPQPGJU
'JOBMMZ "-(T IBWF CFFO QSPWFO
TPVSDFTPGQSPCMFNTJOJNQMFNFOUBUJPO
BOE JOUFSPQFSBCJMJUZ ɩFZ GSFRVFOUMZ
JNQMFNFOUPOMZTVCTFUTPGUIFSFRVJSFE
GVODUJPOBMJUZCSFBLJOHNPSFDPNQMFY
DBTFT8IFOQSPCMFNTEPPDDVSEJBH
OPTJOHUIFNJTOFBSMZJNQPTTJCMFTJODF
UIF"-(JTJOWJTJCMFUPUIFSFTUPGUIF
4*1OFUXPSL
16
IETF Journal
5P CSPBEFO UIF BQQMJDBCJMJUZ B
DPNQBOJPO QSPUPDPM DBMMFE 5SBWFSTBM
6TJOH 3FMBZ /"5 563/
XBT
EFWFMPQFE "T XJUI 456/ B DMJFOU
TFOETBSFRVFTUUPB563/TFSWFSQSJ
PSUPNBLJOHBDBMMɩF563/TFSWFS
SFUVSOTUPUIFDMJFOUBO*1BEESFTTBOE
QPSUUIBUJUDBOVTFBTUIFEFTUJOBUJPO
GPS NFEJB ɩF DMJFOU JODMVEFT UIF *1
BEESFTTBOEQPSUJOJUTTJHOBMMJOHNFT
TBHFT )PXFWFS UIF *1 BEESFTT BOE
QPSU QSPWJEFE CZ UIF 563/ TFSWFS
BSF UIPTF PG UIF 563/ TFSWFS JUTFMG
XIJDI BDUT BT B SFMBZ CZ GPSXBSEJOH
QBDLFUT UP BOE GSPN UIF DMJFOU *O
FTTFODF UIF 563/ TFSWFS JT MJLF B
WJSUVBMQSJWBUFOFUXPSL71/
TFSWFS
CVU SVOOJOH BU UIF 6%1 MBZFS SBUIFS
UIBOUIF*1MBZFS
ɩPVHI563/XPSLTJONPSFDBTFT
UIBO 456/ EPFT 563/ JT FYQFO
TJWF TJODF JU SFRVJSFT UIF QSPWJEFS UP
SFMBZ NFEJB GPS FWFSZ 4*1 DBMM ɩJT
BMTPJODSFBTFTWPJDFMBUFODZ8IBUXBT
OFFEFE XBT B UFDIOPMPHZ UIBU TPNF
IPXDPNCJOFEUIFCFOFmUTPG456/
BOE563/XJUIPVUUIFJSESBXCBDLT
ICE Is Nice
*$& XBT mSTU TVCNJUUFE BT BO JOEJ
WJEVBMESBGUJO'FCSVBSZBOEXBT
BEPQUFEBTBEFMJWFSBCMFPGUIF*&5'
NNVTJD XPSLJOH HSPVQ JO 0DUPCFS
)BWJOHHBJOFEJODSFBTFEJOUFS
FTUPWFSUIFZFBST*$&JTmOBMMZOFBS
DPNQMFUJPO BGUFS UXP SFXSJUFT BOE
TFWFSBMSFEFTJHOT
*$& QSPWJEFT /"5 BOE mSFXBMM
USBWFSTBM DBQBCJMJUJFT GPS BOZ UZQF
PG TFTTJPOPSJFOUFE QSPUPDPM UIPVHI
JUIBTCFFOEFTJHOFEUPXPSLXJUI4*1
BOE JUT DPNQBOJPO QSPUPDPM UIF 4FT
TJPO%FTDSJQUJPO1SPUPDPM4%1
*$&
NBLFTVTFPG456/BOE563/BOE
QSPWJEFTBVOJGZJOHGSBNFXPSLBSPVOE
UIFN *$& JT FYUSFNFMZ SPCVTU QSP
WJEJOH USBWFSTBM VOEFS FWFO UIF NPTU
DPNQMFYUPQPMPHJFT*UJTBMTPPQUJNBM
JOUIBUJUXJMMNBLFVTFPGJOUFSNFEJBUF
IETF 67 • November 2006 • Volume 2, Issue 3
SFMBZT UIF 563/ TFSWFS
POMZ XIFO
OPUIJOHFMTFXPSLT*$&BMTPTVQQPSUT
5SBOTNJTTJPO$POUSPM1SPUPDPM5$1
NFEJB TFTTJPOT TVDI BT UIPTF VTFE
GPSTIBSFEXIJUFCPBSETPSBQQMJDBUJPO
TIBSJOH
&WFO UIPVHI *$& IBT OPU ZFU
SFBDIFE 3'$ TUBUVT UIFSF BSF BM
SFBEZ TFWFSBM MBSHFTDBMF EFQMPZNFOUT
TVQQPSUJOH IVOESFET PG UIPVTBOET PG
VTFST ɩFSF BSF JNQMFNFOUBUJPOT JO
TFWFSBMTPGUQIPOFDMJFOUT
ɩFFTTFOUJBMJEFBPG*$&JTSFMBUJWFMZ
TUSBJHIUGPSXBSE3BUIFSUIBOQJDLKVTU
456/PSKVTU563/GPSBQBSUJDVMBS
DBMM B DMJFOU XJMM PCUBJO *1 BEESFTTFT
BOE QPSUT CZ VTJOH CPUI UFDIOJRVFT
JODMVEJOHCPUIBEESFTTFT‰JOBEEJUJPO
UPQPSUTBMMPDBUFEGSPNMPDBMJOUFSGBD
FT‰JOUPUIF4*1DBMMTFUVQNFTTBHFT
&BDIPGUIFTFJTDBMMFEBDBOEJEBUFBOE
SFQSFTFOUTBQPUFOUJBMQPJOUPGDPNNV
OJDBUJPOTGPSUIFBHFOU8IFOUIF4*1
DBMMTFUVQ SFRVFTU BSSJWFT UIF DBMMFE
QBSUZ EPFT UIF TBNF UIJOH JODMVEJOH
OVNFSPVT BEESFTTFT JO UIF 4*1 SF
TQPOTF"UUIBUQPJOUUIFBHFOUTCFHJO
BQSPDFTTPGDPOOFDUJWJUZDIFDLTɩFTF
BSF 456/ NFTTBHFT TFOU GSPN POF
BHFOU UP UIF PUIFS QSPCJOH UP mOE B
QBSUJDVMBSQBJSPGBEESFTTFTUIBUXPSL
0ODFBQBJSJTGPVOEUIFQSPCFTDFBTF
BOENFEJBDBOCFHJOUPnPX
/FYU UIF BHFOU DPOUBDUT B 456/
TFSWFS GSPN FBDI IPTU JOUFSGBDF ɩF
SFTVMU XJMM CF B TFU PG TFSWFSSFnFYJWF
DBOEJEBUFT ɩFTF BSF *1 BEESFTTFT
UIBU SPVUF UP UIF PVUFSNPTU /"5
CFUXFFO UIF BHFOU BOE UIF 456/
TFSWFSXIJDIJTUZQJDBMMZPOUIFQVCMJD
*OUFSOFU'JOBMMZUIFBHFOUPCUBJOTSF
MBZFEDBOEJEBUFTGSPN563/TFSWFST
ɩFTF*1BEESFTTFTBOEQPSUTSFTJEFPO
UIFSFMBZTFSWFST"TBOPQUJNJTBUJPO
UIF563/QSPUPDPMBMMPXTBDMJFOUUP
MFBSO JUT SFMBZFE BOE TFSWFSSFnFYJWF
DBOEJEBUFTBUUIFTBNFUJNF
4UFQ1SJPSJUJTJOH
0ODFUIFBHFOUIBTHBUIFSFEJUTDBOEJ
EBUFTJUBTTJHOTFBDIPGUIFNBQSJPSJUZ
WBMVF1SJPSJUJFTBSFGSPNUPo
XJUI MBSHFS OVNCFST EFOPUJOH IJHIFS
QSJPSJUZ ɩF QSJPSJUJFT BSF DPNQVUFE
CZNFBOTPGBGPSNVMBUIBUDPNCJOFT
QSFGFSFODFT GPS UZQFT PG DBOEJEBUFT
XIFSF UIF UZQFT BSF IPTU SFMBZFE
BOE TFSWFS SFnFYJWF
BMPOH XJUI QSFG
FSFODFT GPS FBDI IPTU JOUFSGBDF 5ZQJ
DBMMZ UIF MPXFTU QSJPSJUZ JT HJWFO UP
UIF SFMBZFE DBOEJEBUFT TJODF TFOEJOH
NFEJBUISPVHIBSFMBZJTFYQFOTJWFBOE
JODSFBTFT WPJDF MBUFODZ 8IFO B IPTU
JTNVMUJIPNFEJUUZQJDBMMZQSFGFSTPOF
JOUFSGBDF UP BOPUIFS GPS DPNNVOJDB
UJPOT 'PS FYBNQMF B 71/ JOUFSGBDF
NJHIUCFQSFGFSSFEUPBO&UIFSOFUJO
ɩF EFUBJMFE PQFSBUJPO PG *$& DBO UFSGBDFJOPSEFSUPLFFQJOUSBDPNQBOZ
CF CSPLFO JOUP TJY TUFQT HBUIFSJOH WPJDFDPNNVOJDBUJPOTPOBQSJWBUFFO
QSJPSJUJTJOH FODPEJOH PĊFSJOH BOE UFSQSJTFOFUXPSL
BOTXFSJOHDIFDLJOHBOEDPNQMFUJOH
4UFQ&ODPEJOH
4UFQ(BUIFSJOH
8JUI JUT DBOEJEBUFT HBUIFSFE BOE
1SJPS UP NBLJOH B DBMM UIF DBMMFS CF QSJPSJUJTFE UIF BHFOU DPOTUSVDUT JUT
HJOTHBUIFSJOH*1BEESFTTFTBOEQPSUT 4*1 */7*5& SFRVFTU UP TFU VQ UIF
FBDIPGXIJDIJTBQPUFOUJBMDBOEJEBUF DBMMɩFCPEZPGUIF4*1SFRVFTUDPO
GPS DPNNVOJDBUJPOT ɩF mSTU TVDI UBJOTBO4%1NFTTBHFUIBUDPOWFZTUIF
DBOEJEBUF JT HBUIFSFE GSPN JOUFSGBDFT JOGPSNBUJPO OFFEFE GPS USBOTNJUUJOH
POUIFIPTU*GUIFIPTUJTNVMUJIPNFE UIFNFEJBDPOUFOUPGUIFDBMMɩJTJO
UIF BHFOU HBUIFST B DBOEJEBUF GSPN DMVEFTUIFUZQFTPGNFEJBDPEFDTUIFJS
FBDI JOUFSGBDF $BOEJEBUFT GSPN JO QBSBNFUFSTBOEUIF*1BEESFTTFTBOE
UFSGBDFTPOUIFIPTUJODMVEJOHWJSUVBM
JOUFSGBDFT
BSFDBMMFEIPTUDBOEJEBUFT
Continued on next page
17
IETF Journal
ICE, continued from page 17
QPSUTUPCFVTFE*$&FYUFOET4%1CZ
BEEJOH TFWFSBM OFX 4%1 BUUSJCVUFT
ɩF NPTU JNQPSUBOU PG UIFN JT UIF
DBOEJEBUF BUUSJCVUF 'PS FBDI NFEJB
TUSFBNTJHOBMMFEJOUIF4%1UIFSFJTB
DBOEJEBUFBUUSJCVUFGPSFBDIDBOEJEBUF
UIF BHFOU IBT HBUIFSFE ɩF BUUSJCVUF
DPOUBJOT UIF *1 BEESFTT BOE QPSU GPS
UIBU DBOEJEBUF BT XFMM BT UIF QSJPSJUZ
BOE UZQF PG DBOEJEBUF IPTU TFSWFS
SFnFYJWF PS SFMBZFE
ɩF 4%1 BMTP
DPOUBJOTDSFEFOUJBMJOGPSNBUJPOUIBUJT
VTFEUPTFDVSFUIF456/NFTTBHJOH
XIJDIXJMMDPNNFODFMBUFS
4UFQ0ąFSJOHBOE"OTXFSJOH
0ODFUIFDBMMJOHBHFOUIBTDPOTUSVDU
FE JUT 4*1 */7*5& SFRVFTU XJUI UIF
4%1 QBZMPBE JU TFOET UIF SFRVFTU
UP UIF DBMMFE QBSUZ ɩF 4*1 OFUXPSL
EFMJWFSTUIFSFRVFTUUPUIFDBMMFEQBS
UZ "TTVNJOH UIF DBMMFE QBSUZ BMTP
TVQQPSUT *$& UIF DBMMFE QBSUZ IPMET
PĊ PO SJOHJOH UIF QIPOF )PXFWFS
JU QFSGPSNT UIF TBNF HBUIFSJOH QSJ
PSJUJTJOHBOEFODPEJOHUIBUUIFDBMMFS
QFSGPSNFE ɩF DBMMFE QBSUZ UIFO
HFOFSBUFT B QSPWJTJPOBM 4*1 SFTQPOTF
4VDIBSFTQPOTFJOEJDBUFTUPUIFDBMMFS
UIBUUIFSFRVFTUJTCFJOHQSPDFTTFECVU
UIBU QSPDFTTJOH IBT OPU CFFO DPN
QMFUFE ɩF QSPWJTJPOBM SFTQPOTF DPO
UBJOTBO4%1XJUIUIFDBOEJEBUFTUIBU
UIF DBMMFE QBSUZ IBT HBUIFSFE ɩF
4*1 OFUXPSL EFMJWFST UIF QSPWJTJPOBM
SFTQPOTFUPUIFDBMMFS
4UFQ$IFDLJOH
"U UIJT QPJOU UIF DBMMFS BOE DBMMFE
QBSUZIBWFFYDIBOHFE4%1NFTTBHFT
&BDI JT UIFSFGPSF BXBSF PG UIF TFU PG
DBOEJEBUFTGPSFBDINFEJBTUSFBNUIBU
XJMM NBLF VQ UIF DBMM ɩFSF NBZ
CF NPSF UIBO POF NFEJB TUSFBN JO
WJEFPQIPOFTGPSFYBNQMFUIFSFXPVME
CFBOBVEJPTUSFBNBOEBWJEFPTUSFBN
*O UIJT OFYU TUFQ *$& QFSGPSNT UIF
CVMLPGJUTXPSL
18
IETF 67 • November 2006 • Volume 2, Issue 3
&BDIBHFOUQBJSTFBDIPGJUTDBOEJ
EBUFT XJUI B DBOEJEBUF GSPN JUT QFFS
ɩFSFTVMUJTBMJTUPGDBOEJEBUFQBJST*G
FBDI BHFOU QSPWJEFE UISFF DBOEJEBUFT
GPS B NFEJB TUSFBN UIFSF XPVME CF
BUPUBMPGOJOFDBOEJEBUFQBJSTGPSUIBU
NFEJBTUSFBN&BDIBHFOUDPNQVUFTB
QSJPSJUZGPSUIFDBOEJEBUFQBJSCZDPN
CJOJOH UIF QSJPSJUZ PG FBDI DBOEJEBUF
JOUIFQBJS'PS*$&UIFPCKFDUJWFJTUP
EFUFSNJOF B DBOEJEBUF QBJS GPS XIJDI
NFEJB XJMM TVDDFTTGVMMZ nPX JO FBDI
EJSFDUJPO *G NBOZ DBOEJEBUF QBJST
XPSL UIF PCKFDUJWF JT UP TFMFDU UIF
IJHIFTUQSJPSJUZQBJS4JODFUIFQSJPS
JUZPGFBDIDBOEJEBUFBOEDPOTFRVFOU
MZ UIF QBJS
JT MBSHFTU GPS UIPTF XJUI
GFXFTU JOUFSNFEJBUF SFMBZT XIFUIFS
UIFZCFBO/"5PSB563/TFSWFS
UIF IJHIFTUQSJPSJUZ QBJS XJMM BMTP CF
UIFPOFUIBUQSPWJEFTUIFNPTUEJSFDU
QBUIGPSNFEJBUSBċD
5P WFSJGZ UIBU B DBOEJEBUF QBJS
XPSLT *$& NBLFT VTF PG B 456/
USBOTBDUJPO GSPN FBDI BHFOU UPXBSET
UIFPUIFSDBMMFEBDPOOFDUJWJUZDIFDL
ɩF 456/ USBOTBDUJPO VTFT UIF *1
BEESFTTFT BOE QPSUT JO UIF DBOEJEBUF
QBJS‰UIFTBNF*1BEESFTTFTBOEQPSUT
UIBUXJMMCFVTFEGPSUIFUSBOTNJTTJPO
PG NFEJB $POTJEFSJOH BHBJO PVS FY
BNQMF PG "MJDF BOE #PC "MJDF TFOET
B456/SFRVFTUGSPNPOFPGIFSDBO
EJEBUFT UP POF PG #PCT DBOEJEBUFT
*GUIF456/SFRVFTUJTSFDFJWFE#PC
HFOFSBUFT B SFTQPOTF UIBU SFBDIFT
"MJDF*G"MJDFHFUT#PCTSFTQPOTFTIF
LOPXTTIFDBOTFOEBQBDLFUGSPNIFS
DBOEJEBUFUP#PCTDBOEJEBUFBOEUIBU
#PCXJMMCFBCMFUPSFDFJWFJU4JODFTIF
HPU B SFTQPOTF TIF BMTP LOPXT UIBU
QBDLFUTGSPN#PCBSFBCMFUPSFBDIIFS
ɩVTUIF456/USBOTBDUJPOTFSWFTUP
WFSJGZ CJEJSFDUJPOBM SFBDIBCJMJUZ GPS
BDBOEJEBUFQBJS*G#PCQFSGPSNTIJT
PXO USBOTBDUJPO IF DBO WFSJGZ CJEJ
SFDUJPOBM SFBDIBCJMJUZ BT XFMM /PUF
UIBU UIF SFDFJQU PG B SFRVFTU GSPN
"MJDF JT OPU TVċDJFOU JU EPFTOU
JOEJDBUF UP #PC XIFUIFS IJT SFTQPOTF
SFBDIFE"MJDF
4JODF UIF 456/ USBOTBDUJPOT BSF
TFOU PO UIF TBNF *1 BEESFTTFT BOE
QPSUT UIBU XJMM FWFOUVBMMZ CF VTFE GPS
NFEJBUSBċDUIFSFJTBOFFEUPEFNVM
UJQMFYUIF456/BOENFEJBCZVTJOH
TPNFUIJOH CFTJEFT UIF QPSU 456/
IBTTFWFSBMmFMETCVJMUJOUPJUTIFBEFST
UIBUBMMPXJUUPCFEFNVMUJQMFYFEGSPN
BSCJUSBSZBQQMJDBUJPOUSBċD*OBOJEFBM
XPSMEUIF6%1BOE5$1QPSUDPVME
CFVTFEUPNVMUJQMFY)PXFWFS/"5
IBTFĊFDUJWFMZNBEFUIFQPSUOVNCFST
QBSUPGUIF*1MBZFSTJODFUIFZOPXBSF
TJHOJmDBOU JO UIF SPVUJOH PG *1 EBUB
HSBNT
4JODF UIF OVNCFS PG DBOEJEBUF
QBJSTHSPXTCZUIFTRVBSFPGUIFOVN
CFS PG DBOEJEBUFT UIF QFSGPSNJOH PG
UIFDIFDLTGPSFBDIQBJSJOQBSBMMFMJT
QSPCMFNBUJD *OTUFBE *$& QFSGPSNT
UIFDIFDLTTFRVFOUJBMMZɩFDBOEJEBUF
QBJSTBSFPSEFSFECZQSJPSJUZBOEFWFSZ
NJMMJTFDPOETFBDIBHFOUHFOFSBUFT
B456/USBOTBDUJPOGPSUIFOFYUQBJS
JOUIFMJTU*OBEEJUJPOXIFOBOBHFOU
SFDFJWFT B 456/ SFRVFTU PO B DBO
EJEBUF QBJS JU JNNFEJBUFMZ HFOFSBUFT
B 456/ USBOTBDUJPO JO UIF SFWFSTF
EJSFDUJPO ɩJT JT DBMMFE B USJHHFSFE
DIFDLBOEJUJNQSPWFTUIFSFTQPOTJWF
OFTTPG*$&
4UFQ$PNQMFUJOH
0ODFBDIFDLJTDPNQMFUFEUIFBHFOU
LOPXTJUIBTGPVOEBQBJSUIBUXJMMXPSL
GPSNFEJBUSBċD4JODFUIFDIFDLTBSF
EPOF JO QSJPSJUZ PSEFS UIF mSTU POF
UP CF DPNQMFUFE XJMM VTVBMMZ CF UIF
IJHIFTUQSJPSJUZQBJSUIBUXPSLT0OF
PGUIFBHFOUTUZQJDBMMZUIFDBMMFSXJMM
HFOFSBUFBmOBMDIFDLUPXBSEUIFPUI
FS BHFOU DPOmSNJOH UIBU UIF QBJS JT
UIFPOFTFMFDUFEɩJTBMMPXTGPSFBDI
BHFOUUPVOBNCJHVPVTMZDPNNVOJDBUF
XIJDIQBJSXJMMVMUJNBUFMZCFVTFEGPS
NFEJB
IETF Journal
0ODFUIJTmOBMUSBOTBDUJPOIBTCFFO
TFOUUIFDBMMFEBHFOUDBOOPXSJOHUIF
QIPOF"MMPGUIFQSPDFTTJOHTPGBS‰
UIF HBUIFSJOH BOE BMM PG UIF DPOOFD
UJWJUZDIFDLT‰UBLFTQMBDFQSJPSUPUIF
DBMMFEQBSUZTQIPOFFWFOSJOHJOHɩJT
NFBOTUIBU*$&IBTUIFTJEFFĊFDUPG
JODSFBTJOH DBMMTFUVQ EFMBZT ɩJT JT
*$&T QSJNBSZ ESBXCBDL )PXFWFS
UIFJODSFBTFJOEFMBZUFOETUPCFQSP
QPSUJPOBMUPUIFDPNQMFYJUZPGUIFTJU
VBUJPO'PSBCBTJDWPJDFDBMMCFUXFFO
UXPFOEQPJOUTPOUIFQVCMJD*OUFSOFU
XJUIOPJOUFSWFOJOH/"5*$&BEETUP
UIFDBMMTFUVQPOMZBTJOHMFSPVOEUSJQ
UJNFUIBUJTJODPOTFRVFOUJBM#ZBWPJE
IETF 67 • November 2006 • Volume 2, Issue 3
4*1FMFNFOUTUIBUBSFOPU*$&BXBSF + 3PTFOCFSH i*OUFSBDUJWF $PO
CVUUIBUOFFEUPLOPXXIFSFNFEJBJT OFDUJWJUZ &TUBCMJTINFOU *$&
"
CFJOHTFOU
.FUIPEPMPHZ GPS /FUXPSL "EESFTT
5SBOTMBUPS /"5
5SBWFSTBM GPS
Concluding Remarks
0ĊFS"OTXFS 1SPUPDPMTw *&5' *O
*$& JT POF PG UIF NPTU JNQPSUBOU UFSOFU%SBGUESBGUJFUGNNVTJDJDF
FYUFOTJPOT QSPEVDFE UP EBUF GPS 4*1 0DUPCFS
*OEFFEJUJTDPOTJEFSFEPOFPGJUTGFX
DPSFFYUFOTJPOT‰UIPTFFYQFDUFEUPCF
VTFECZFWFSZ4*1DMJFOUGPSFWFSZ4*1
DBMM ɩPVHI EFTJHOFE GPS 4*1 *$&
JT BQQMJDBCMF UP BOZ TFTTJPOPSJFOUFE
QSPUPDPM *OEFFE *$& JT DVSSFOUMZ JO
EFQMPZNFOUXJUIBOPO4*1QSPUPDPM
8PSLJTBMTPJOQSPHSFTTUPBQQMZJUUP
UIF 3FBM5JNF 4USFBNJOH 1SPUPDPM
For ICE the objective is to determine a candidate pair for
which media will successfully flow in each direction. If many
candidate pairs work, the objective is to select the highestpriority pair.
JOH SJOHJOH UIF QIPOF VOUJM UIF *$&
DIFDLTIBWFCFFODPNQMFUFE*$&DBO
HVBSBOUFF UIBU XIFO UIF DBMMFE QBSUZ
EPFT BOTXFS NFEJB XJMM TVDDFTTGVMMZ
nPXJOFBDIEJSFDUJPO*$&UIFSFGPSF
FMJNJOBUFT HIPTU SJOHT‰DBTFT XIFSF
UIF QIPOF SJOHT CVU UIF VTFST IFBS
OPUIJOHXIFOUIFZBOTXFSUIFQIPOF
(IPTUSJOHTBSFDPNNPOQSPCMFNTJO
7P*1BOEBSFBMNPTUBMXBZTDBVTFECZ
/"5BOEmSFXBMMUSBWFSTBMQSPCMFNT
0ODF UIF QIPOF SJOHT UIF DBMMFE
QBSUZ BOTXFST ɩJT HFOFSBUFT BO 4*1
0, mOBM SFTQPOTF DPOmSNJOH
BDDFQUBODF PG UIF DBMM 8IFO DBMMFST
HFUB0,UIFZTFOEBO4*1"$,
*G *$& OFHPUJBUJPO SFTVMUT JO UIF TF
MFDUJPOPGBDBOEJEBUFQBJSUIBUEJĊFST
GSPN UIF EFGBVMU *1 BEESFTT BOE QPSU
DBSSJFEJOUIF4%1UIFEFGBVMUJTVTFE
GPS DPNNVOJDBUJOH XJUI OPO*$&
FOEQPJOUT
UIFDBMMFSQFSGPSNTBO4*1
SF*/7*5&UPVQEBUFUIFEFGBVMUɩJT
JTEPOFGPSUIFCFOFmUPGJOUFSNFEJBUF
+ 1FUFSTPO $ +FOOJOHT i&O
IBODFNFOUT GPS "VUIFOUJDBUFE *EFO
UJUZ .BOBHFNFOU JO UIF 4FTTJPO
*OJUJBUJPO1SPUPDPM4*1
w*&5'3'$
"VHVTU
1 4SJTVSFTI + ,VUIBO + 3PTFO
CFSH " .PMJUPS " 3BZIBO i.JE
EMFCPY $PNNVOJDBUJPO "SDIJUFDUVSF
BOE 'SBNFXPSLw *&5' 3'$ "VHVTU
+ 3PTFOCFSH + 8FJOCFSHFS $
)VJUFNB3.BIZi456/‰4JNQMF
5SBWFSTBM PG 6TFS %BUBHSBN 1SPUPDPM
6%1
UISPVHI /FUXPSL "EESFTT
5SBOTMBUPST /"5T
w *&5' 3'$
.BSDI
+ 3PTFOCFSH 3 .BIZ $ )VJU
3541
VTFE GPS TUSFBNJOH NFEJB FNB i0CUBJOJOH 3FMBZ "EESFTTFT
GSPN 4JNQMF 5SBWFSTBM VOEFSOFBUI
DPOUSPM
/"5456/
w*&5'*OUFSOFU%SBGU
*$&T JNQPSUBODF HPFT CFZPOE
ESBGUJFUGCFIBWFUVSO 0DUPCFS
KVTU SPCVTU /"5 USBWFSTBM *$& BEET
TJHOJmDBOU TFDVSJUZ UP 4*1 PWFSBMM
FMJNJOBUJOH B LFZ %P4 BUUBDL UIF + 3PTFOCFSH i" )JUDIIJLFST
WPJDFIBNNFS
XIJDIDBOCFMBVODIFE (VJEF UP UIF 4FTTJPO *OJUJBUJPO 1SP
UPDPM 4*1
w *&5' *OUFSOFU %SBGU
CZVTJOH4*1OFUXPSLTBTBNQMJmFST
ESBGUJFUGTJQIJUDIIJLFSTHVJEF
8JUI BMM PG UIFTF CFOFmUT JUT OPU
0DUPCFS
IBSEUPTFFXIZ*$&JTMJLFMZUPCFB
DPSOFSTUPOFPGBMM4*1OFUXPSLTJOUIF DzJT BSUJDMF JT CBTFE PO B QSFTFOUBUJPO
HJWFO CZ +POBUIBO 3PTFOCFSH EVSJOH
OFBSGVUVSF
*&5'
References
. )BOEMFZ ) 4DIVM[SJOOF
& 4DIPPMFS + 3PTFOCFSH i4*1
4FTTJPO *OJUJBUJPO 1SPUPDPMw *&5'
3'$.BSDI
+ 3PTFOCFSH ) 4DIVM[SJOOF (
$BNBSJMMP " +PIOTUPO + 1FUFSTPO
34QBSLT.)BOEMFZ&4DIPPMFS
i4*1 4FTTJPO *OJUJBUJPO 1SPUPDPMw
*&5'3'$+VOF
19
IETF Journal
IETF 67 • November 2006 • Volume 2, Issue 3
IASA/IAOC Update
Photo by Mirjam Kühne
By Lucy Lynch and Ed Juskevicius
5
IF *OUFSOFU "ENJOJTUSBUJWF 0WFSTJHIU $PNNJUUFF *"0$
NFU GPS
UXPEBZTJO+BOVBSZUPSFWJFX*&5'"ENJOJTUSBUJWF4VQQPSU"DUJWJUZT
*"4"T
QSPHSFTT EVSJOH UP FTUBCMJTI HPBMT GPS BOE UP CFHJO
QMBOOJOHGPS UIFUSBOTJUJPO PG *"0$NFNCFSTJO .BSDI "T NVDI
BTIBMGPGUIFDVSSFOU*"0$NFNCFSTIJQNBZDIBOHFBGUFSUIFOFYU*&5'
NFFUJOH TDIFEVMFEGPS.BSDIJO 1SBHVF 4UFWF $SPDLFS BOE *XJMM
CPUI CF TUFQQJOH EPXO +POOF 4PJOJOFOT UXPZFBS UFSN BT B /PN$PN
BQQPJOUFF JT VQ #SJBO $BSQFOUFS XJMM OPU CF SFVQQJOH BT *&5' $IBJS
BOE -FTMJF %BJHMFhT QPTJUJPO BT *OUFSOFU "SDIJUFDUVSF #PBSE *"#
DIBJS
JTTVCKFDUUPDIBOHFBGUFSOFX*"#NFNCFSTBSFTFBUFEJO1SBHVF
Lucy Lynch
8JUI SFTQFDU UP TPNF PG UIF OPUBCMF *"4" BDDPNQMJTINFOUT
JODMVEFE
t 4VSWJWJOH UIF SBJOT JO %BMMBT XIJDI DISJTUFOFE UIF mSTU *&5'
NFFUJOHPSHBOJTFEWJBPVSOFXPQFSBUJOHNPEFMXIJDIIBTUIF*&5'
"ENJOJTUSBUJWF %JSFDUPS *"%
XPSLJOH XJUI /FVTUBS 4FDSFUBSJBU
4FSWJDF/44
t 3FQFBUJOHUIBUTVDDFTTBHBJOJO.POUSFBMBOE4BO%JFHP
t $MPTJOH JO PO PVS HPBM PG CFJOH BU MFBTU NPOUIT BIFBE XJUI
SFTQFDU UP VQDPNJOH *&5' NFFUJOHT 3BZ 1FMMFUJFS IBT BMSFBEZ
BOOPVODFEUIFEBUFTBOEMPDBUJPOTGPSUIFmSTUUXP*&5'NFFUJOHT
PG
t (FUUJOH DPNNVOJUZ JOQVU BOE DPOTFOTVT PO UIF EBUFT PG BMM GVUVSF
*&5'NFFUJOHTUPUIFFOEPG
t &TUBCMJTIJOH B HPPE XPSLJOH SFMBUJPOTIJQ XJUI UIF OFX 4FDSFUBSJBU
UFBN TVDI BT /44 "NPOH UIF BDDPNQMJTINFOUT UIJT ZFBS JT UIF
OFHPUJBUJPOPGBNVMUJZFBSNVMUJNFFUJOHIPUFMDPOUSBDUXJUI)JMUPO
*OUFSOBUJPOBM ɩJT DPOUSBDU JT B TJHOJmDBOU JNQSPWFNFOU PWFS QBTU
POFUJNF
IPUFMDPOUSBDUTBOECZIPMEJOHmWFPGPVSOFYUNFFU
JOHTBU)JMUPOMPDBUJPOTUIF*&5'XJMMTFFTVCTUBOUJBMDPTUTBWJOH
t 3FDFJWJOH RVBSUFSMZ USBOTGFST PG *&5'SFMBUFE JOUFMMFDUVBM QSPQFSUZ
SJHIUT*13
GSPNUIF*OUFSOFUTPDJFUZJOUPUIF*&5'5SVTU
t *TTVJOH B SFRVFTU GPS QSPQPTBMT 3'1
GPS 3'$ &EJUPS TFSWJDFT
BDDFQUJOHUISFFCJETBOEFYFDVUJOHBNFNPSBOEVNPGVOEFSTUBOEJOH
.P6
XJUIPOFPGUIPTFCJEEFST
t *TTVJOHB/FUXPSL4FSWJDFT3'1UPFOBCMFPVUTPVSDJOHUIF/FUXPSL
0QFSBUJPOT$FOUSF/0$
GPSBOZGVUVSF*&5'NFFUJOHXIFSFUIF
IPTUEPFTOPUXBOUUPQSPWJEFUIFNFFUJOHOFUXPSL
t 'JOBMJTJOH SFWJTJPOT UP UIF *13 CPJMFSQMBUF UFYU UP CF QVU POUP OFX
*%TBOE3'$TUIF*138(mOJTIFEXPSLPOUIJTEVSJOH
BOE BMM GVUVSF DPOUSJCVUJPOT UP UIF 3'$ TFSJFT XJMM CF JEFOUJmFE BT
DPOUSJCVUJPOTUPUIF*&5'5SVTUQFSUIFMBOHVBHFJO3'$
t BOENVDINPSFTFF*"4"QBHFTBUIUUQJBPDJFUGPSH
20
Among the accomplishments
this year is surviving the rains
in Dallas, which christened the
first IETF meeting organized
via our new operating model,
which has the IETF Administrative Director working with
Neustar Secretariat Service.
IETF Journal
IETF 67 • November 2006 • Volume 2, Issue 3
-PPLJOH BIFBE JUFNT GPS UIF *"0$ iUP EPw JO UIF mSTU IBMG PG JODMVEF
t $POWFSUJOHUIF.P6GPS3'$&EJUPS4FSWJDFTJOUPBGPSNBMDPOUSBDU
UBSHFUJTUPDPNQMFUFUIJTCFGPSF.BSDI
t 4FMFDUJOH B XJOOJOH CJEEFS GSPN UIF SFTQPOTFT UP UIF /FUXPSL
4FSWJDFT3'1BOEEFWFMPQSVOOJOHDPEFJO1SBHVF
I have truly enjoyed my time
with the IAOC. I think we
have accomplished a lot and
our internal relationships have
been a constant reminder
of all that is best about the
IETF “way” of working.
t *TTVJOH B SFRVFTU GPS JOGPSNBUJPO 3'*
GPS *&5' TVQQPSU TFSWJDFT
UBSHFU EBUF JT CFGPSF 1SBHVF
CBTFE PO UIF SFTQPOTFT UP UIBU 3'*
SFWJTFUIFTUBUFNFOUPGXPSL4P8
GPSTFDSFUBSJBUBOENFFUJOHTFSWJDFT
CFGPSFHPJOHUP3'1
t $POUJOVJOHEFWFMPQNFOUPGTVQQPSUUPPMTTVDIBTFYUFOTJPOTUPUIF
*%USBDLFS
t 3FWJFXJOH*"4"QSPHSFTTBOESFWJTFUIF*"0$DIBSUFSCBTFEPOUIF
SFRVJSFNFOUTPGUIFPSJHJOBM*"4"CFTUDVSSFOUQSBDUJDFT#$1
TVDI
BT3'$
t 8FMDPNJOHOFXNFNCFSTUPUIF*"0$JO1SBHVF
0OBQFSTPOBMOPUF*IBWFUSVMZFOKPZFENZUJNFXJUIUIF*"0$*UIJOL
XFIBWFBDDPNQMJTIFEBMPUBOEPVSJOUFSOBMSFMBUJPOTIJQTIBWFCFFOBDPO
TUBOUSFNJOEFSPGBMMUIBUJTCFTUBCPVUUIF*&5'iXBZwPGXPSLJOH*XJTI
UIFOFX*"0$NVDITVDDFTTJOUIFGVUVSFBOELOPXUIBUCPUISFUVSOJOH
NFNCFSTBOEUIF*&5'DPNNVOJUZXJMMTVQQPSUUIFOFXUFBNBTUIFZUBLF
PWFSUIFSFJOTJO1SBHVF.ZPXOUJNFXJUIUIF*"0$IBTCFFODIBMMFOH
JOHFOUFSUBJOJOHPDDBTJPOBMMZFYBTQFSBUJOHBOEVMUJNBUFMZWFSZSFXBSEJOH
*XPVMEFODPVSBHFFWFSZPOFJOUIF*&5'DPNNVOJUZUPUBLFUIFJSUVSOQBS
UJDJQBUJOHJOUIFTFBMMJNQPSUBOUiIPVTFLFFQJOHwJTTVFT
Recent IESG Document and Protocol Actions
A full list of recent IESG Document and Protocol Actions can be found at
http://ietfjournal.isoc.org/DocProtoActions0203.shtml
21
IETF Journal
IETF 67 • November 2006 • Volume 2, Issue 3
IETF 67 IRTF Report
By Aaron Falk
%
VSJOH UIF 5FDIOJDBM 1MFOBSZ BU *&5' "BSPO 'BML DIBJS PG UIF
*OUFSOFU 3FTFBSDI 5BTL 'PSDF *35'
SFQPSUFE PO UIF TUBUVT PG BMM
DVSSFOUMZ BDUJWF *OUFSOFU SFTFBSDI HSPVQT 3(T
)JHIMJHIUT PG TFWFSBM BSF
EFTDSJCFEIFSF
%FMBZ5PMFSBOU/FUXPSLJOH3FTFBSDI(SPVQEUOSH
ɩJSUFFO ESBGUT BSF DVSSFOUMZ BDUJWF XJUIJO UIF %5/ 3( XJUI UIF %5/
"SDIJUFDUVSFEPDVNFOUJOUIFQSPDFTTPGCFJOHmOBMJTFEɩFSFTFBSDIHSPVQ
NFUEVSJOH*&5'BOEDPOEVDUFEBOJOUFSPQFSBCJMJUZUFTUUPUFTUUIFGPM
MPXJOH
t-BOHVBHFT$+BWB$$
t0QFSBUJOHTZTUFNT4ZNCJBODFMMQIPOF.BD04-JOVY8JO
OFU
t.BDIJOFT.BD1$/PLJB1%"/PLJBDFMMQIPOF
"MMUFTUTEFNPOTUSBUFETVDDFTTGVMJOUFSPQFSBCJMJUZ*OBEEJUJPOB%5/
IPQMJOFBSOFUXPSLXBTEFNPOTUSBUFEEVSJOHUIF*&5'NFFUJOH*OBSFMBUFE
OPUF BO FYQFSJNFOU PO UIF VTF PG %5/ JO WFSZ
OPSUIFSO 4XFEFO VTFE
%5/UPQSPWJEF*OUFSOFUBDDFTTGPS4BBNJSFJOEFFSIFSEFST
&OE.JEEMF&OE3FTFBSDI(SPVQFNF
ɩF&.&3(XBTDIBSUFSFEGPMMPXJOHBCJSETPGBGFBUIFS#P'
TFTTJPO
BU*&5'JO+VMZɩFHPBMBDDPSEJOHUPJUTDIBSUFSJTUPiQSPWJEF
BXBZGPSFOEUPFOEDPNNVOJDBUJPOUPFYQMJDJUMZBEESFTTNJEEMFCPYFTTP
UIBU UIFJS CFIBWJPVS DBO CF VOEFSTUPPE NPOJUPSFE BOE DPOUSPMMFEw "T B
OFYUTUFQBOBSDIJUFDUVSFXJMMCFEFWFMPQFEDPOTJEFSJOHEFTJHODIPJDFTBOE
EFQMPZNFOU
&OEUP&OE3FTFBSDI(SPVQFOEFOE
" NFFUJOHPGUIJT3( JT QMBOOFE GPS'FCSVBSZJO UIF 6OJUFE,JOH
EPN
)PTU*EFOUJUZ1SPUPDPM3FTFBSDI(SPVQIJQ
ɩF)*1PWFS/"5QSPCMFNTUBUFNFOUDPNQMFUFE*OUFSOFU3FTFBSDI4UFFS
JOH(SPVQ*34(
SFWJFXBOEJTOPXJOUIF3'$&EJUPSRVFVFɩF3(SF
DFOUMZTUBSUFEBEJTDVTTJPOPOIPXUPFODPVSBHFNPSF)*1FYQFSJNFOUBUJPO
ɩF)*13(JTQMBOOJOHUPNFFUBU*&5'
*OUFSOFU$POHFTUJPO$POUSPM3FTFBSDI(SPVQJDDSH
ɩF*$$3(JTDVSSFOUMZEFWFMPQJOHBDBUBMPHVFPGDPOHFTUJPODPOUSPMJOUIF
3'$TFSJFTɩFGPDVTJTOPUPO5$1XIFSFBSPBENBQBMSFBEZFYJTUTCVU
PO&$/6%1%$$1BOENVMUJDBTUɩF*$$3(JTQMBOOJOHBNFFUJOH
PO'FCSVBSZJO-PT"OHFMFTXJUIBXPSLTIPQPO1SPUPDPMTGPS'BTU
-POH%JTUBODF/FUXPSLT1'-%OFU
.FFUJOHJOGPSNBUJPODBOCFGPVOEBU
IUUQXXXUPPMTJFUGPSHHSPVQJSUGUSBDXJLJ*$$3(
22
Aaron Falk, IRTF Chair
IETF Journal
IETF 67 • November 2006 • Volume 2, Issue 3
*1.PCJMJUZ0QUJNJTBUJPO3FTFBSDI(SPVQNPCPQUT
ɩF.0#01543(IBTPQFOFE-BTU$BMMGPSUIFEPDVNFOUUJUMFE6OJmFE
- "CTUSBDUJPOT GPS -%SJWFO 'BTU )BOEPWFS 0UIFS UPQJDT GPS UIF 3(
JODMVEFNVMUJDBTUBOE*1WNPCJMJUZBOEMPDBUJPOQSJWBDZ
/FUXPSL.BOBHFNFOU3FTFBSDI(SPVQONSH
ɩF/.3(NPTUSFDFOUMZNFUJO6USFDIU/FUIFSMBOETJO0DUPCFS
3FTFBSDIJOUIJTBSFBIBTVOEFSHPOFTFWFSBMDIBOHFTPWFSUIFQBTUGFXZFBST
QSPEVDJOHOFXDIBMMFOHFT"EESFTTJOHUIFDIBMMFOHFTPWFSBUJNFGSBNFPG
mWFZFBSTXBTPOFPGUIFUPQJDTDPWFSFEBUUIFNFFUJOH"EEJUJPOBMOFUXPSL
NBOBHFNFOU SFTFBSDI XBT SFDPNNFOEFE JODMVEJOH NPOJUPSJOH BOPNBMZ
EFUFDUJPOCFIBWJPVSNPEFMMJOHQSPCBCJMJTUJDNBOBHFNFOUBQQSPBDIFTBOE
BMHPSJUINTGPSIBOEMJOHNBOBHFNFOUEBUB%FUBJMFENJOVUFTDBOCFGPVOEBU
IUUQXXXJCSDTUVCTEFQSPKFDUTONSHNJOVUFTNJOVUFTUYU
"QPTJUJPOTUBUFNFOUBHFOEBBOEQSFTFOUBUJPOTBSFPOMJOFBUIUUQXXX
JCSDTUVCTEFQSPKFDUTONSHNFFUJOHTVUSFDIU
DzF1FFSUP1FFS3FTFBSDI(SPVQQQSH
ɩF113(JTDVSSFOUMZEJTDVTTJOHUIFGVUVSFEJSFDUJPOPGUIFHSPVQ
3PVUJOH3FTFBSDI(SPVQSSH
ɩF33(NFUBU*&5'BOEEJTDVTTFEBOFYUFOEFESFQPSUPOUIFXPSL
PGUIFTVCHSPVQDPOEVDUJOHTDBMBCJMJUZSFTFBSDI*UJTRVFTUJPOBCMFXIFUIFS
JOUFSFTUFYJTUTJODPOUJOVJOHUIJT3($IBJS"WSJ%PSJBIBTJTTVFEBDBMMGPS
JOUFSFTU QPJOUJOH PVU UIBU UIF 3 3( JT MPPLJOH GPS HPPE SPVUJOH SFTFBSDI
JEFBTiɩFSFBSFMPUTPGHSBEVBUFTUVEFOUTXJUIOPSFBMMPDBMJOTQJSBUJPOXIP
XPVMEMPWFUPXPSLPOTPNFJOTQJSFEJEFBTwTIFTBJE
4DBMBCMF"EBQUJWF.VMUJDBTU3FTFBSDI(SPVQTBNSH
ɩF4".3(NFUBU*&5'BTXFMMBTEVSJOHUIFQFFSUPQFFSNVMUJDBTU
XPSLTIPQ EVSJOH UIF *&&& $POTVNFS $PNNVOJDBUJPOT BOE /FUXPSL
$POGFSFODF JO +BOVBSZ JO -BT 7FHBT 5P EBUF UIFSF BSF UISFF BDUJWF
*OUFSOFU%SBGUT UIBU FODPNQBTT SFRVJSFNFOUT B QSPCMFN TUBUFNFOU BOE
BTVSWFZ
5SBOTQPSU.PEFMMJOH3FTFBSDI(SPVQUNSH
ɩF 5. 3( JT QSFQBSJOH GPS QVCMJDBUJPO PG B EPDVNFOU UJUMFE i.FUSJDT
GPSUIF&WBMVBUJPOPG$POHFTUJPO$POUSPM.FDIBOJTNTwɩFHSPVQJTQMBO
OJOHUPIBWFUIJTEPDVNFOUQBTTFEUPUIF*34(UPCFDPNFBO*OGPSNBUJPOBM
3'$CZUIFUJNFPG*&5'TDIFEVMFEGPS.BSDIJO1SBHVFɩF
HSPVQJTBMTPQMBOOJOHUPDPNQMFUFBEPDVNFOUUJUMFEi5PPMTGPSUIF&WBMVB
UJPOPG4JNVMBUJPOBOE5FTUCFE4DFOBSJPTwɩFEPDVNFOUPOCFTUDVSSFOU
QSBDUJDFTDFOBSJPTJTOPXBESBGU8JUIJOUIJT3(UIFSFNBZQPTTJCMZCFB
MPOHQFSJPEPGBEEJUJPOTGFFECBDLBOEEJTBHSFFNFOU
ɩFGPMMPXJOH3(TBSFOPUDVSSFOUMZBDUJWF"OUJ4QBN3(QPTTJCMZEVF
UPUIF%PNBJO,FZT*EFOUJmFE.BJM<%,*.>8(
BOE*OUFSOFU.FBTVSF
NFOU3(XIJDINBZCFEFBE
'PSNPSFJOGPSNBUJPOBCPVUUIF*35'QMFBTFTFFIUUQXXXJSUGPSH
23
IETF Meeting Calendar
*&5'
o.BSDI
)PTU/FV4UBS
1SBHVF$[FDI3FQVCMJD
*&5'
o%FDFNCFS
)PTU5#%
/PSUI"NFSJDB"TJB
*&5'
o+VMZ
)PTU.PUPSPMB
$IJDBHP*-64"
*&5'
o.BSDI
)PTU5#%
-PDBUJPO/PSUI"NFSJDB
1SPWJTJPOBM
Register now for
IETF 68
18–23 March 2007
Prague, Czech Republic
http://www3.ietf.org/meetings/68-IETF.html
Early bird registration: 600 USD (through 9 March 2007)
Regular registration: 750 USD
IETF Journal
IETF 67
November 2006
Volume 2, Issue 3
Published three times
a year by the
Internet Society
4 rue des Falaises
CH–1205 Geneva
Switzerland
Managing Editor
Mirjam Kühne
Associate Editor
Wendy Rickard
Editorial and Design
The Rickard Group, Inc.
Editorial Board
Brian Carpenter
Leslie Daigle
Peter Godwin
E-mail
ietfjournal@isoc.org
Find us on the Web at
ietfjournal.isoc.org
This publication has been made possible
through the support of the following Platinum Programme
supporters of ISOC
The ISOC Fellowship to the IETF is sponsored by