The following table gives a list of known issues that wait resolution in MIPv6. The Draft field tells which draft version contains the solution, and the Status field tells the current situation as follows: "Open" means that the issue is still open. "Adopted" means that a consensus of the resolution has been found. "Rejected" means that there is consensus that nothing should be done. New issues can be submitted by sending e-mail to the list.
A color coding scheme has been applied to help find the open issues. Solved issues (Adopted or Rejected), with modifications applied to the draft, are shown in green. Other solved issues are shown in black. Unsolved issues, or issues lacking text are shown in red. Issue statistics are tracked on the statistics page. Warning: e-mail sent to the list or to me personally on MIPv6 may be included in the issue descriptions either as such, in an edited form for clarity, or be omitted. Correctness of the issue files is not guaranteed, and comments may be attributed to wrong persons.
The most recent versions of the drafts can be found from the drafts page.
# Status Text Draft What ---------------------------------------------------------------------- 334 Adopted Yes - Brian's editorial issues 333 Adopted Yes Rep Soohong's nit on 8.2 332 Adopted Yes - Section 11.7.1 should not indicate HAO is optional 331 Adopted Yes Rep Hesham's on-link care-of address clarification 330 Adopted Yes Rep Frank Quick's IKE phase etc clarifications 329 Adopted Yes Rep Three/two rules in 10.3.1 328 Adopted Yes Rep Token/nonce terminology in 9.4.4 327 Adopt? Yes - Connecthathon issues 326 Adopted Yes Rep Section 9.3.2 typo 325 Adopted Yes Rep BRR directly to the home address without RH? 324 Adopted Yes Rep/Op Refresh interval is not absolute time 323 Adopted Yes Rep Not really silent discard if you send MPS 322 Adopted Yes RFC Typos reported by Jee 321 Adopted Yes Rep Typo reported by Jinmei 320 Adopted Yes Rep IANA and Status Codes (Drafts 24 and 06 posted) 319 Adopted Yes 06 Current ha-ipsec IKE variant too complicated 318 Rejected Yes 23 Do PD before re-registration 317 Adopted Yes 24 Typo in 6.8 316 Adopted Yes 24 Not home link error check no longer needs to track RAs (Draft 23 posted for third IESG consideration) 315 Adopted Yes 23 BE text clarification 314 Rejected Yes 22 2nd IESG review: HMAC fields need an identifier? 313 Adopted Yes 23 2nd IESG review: manual/automatic key management 312 Rejected Yes 05 2nd IESG review: Steven worries about the API requirement 311 Adopted Yes 06 2nd IESG review: Resolving Russ' replay protection comments 310 Adopted Yes 23 K=0 or 1 for manual keying? 309 Rejected Yes 05 Home agent side IKE policy match decision 308 Adopted Yes 23 Avoid router lifetime going under a second (Drafts 22 and 05 posted for second IESG consideration) 307 Rejected Yes 05 Santeri's complaint of BITS problems 306 Adopted Yes 05 Francis' review of ha-ipsec 305 Rejected Yes 21 Do not understand IKE identity payload requirement 304 Rejected Yes 21 Use home address as IKE address 303 Rejected Yes 21 Relax rules to allow VPN gateways to secure BUs 302 Adopted Yes 22 Keep Section 7.6 (DAD Collisions) in the document? 301 Adopted Yes 22 Logging observed prefix difference text is unclear 300 Rejected Yes 21 HOT, COT attack when both nodes are mobile 299 Rejected Yes 21 IESG review: combine multicast router discovery and mipv6 ND options 298 Adopted Yes 22 IESG review: security - other issues beyond IKE keyword 297 Adopted Yes 22 IESG review: Movement detection and and router reachability 296 Adopted Yes 05 IESG review: Russ Housley's comments on ha-ipsec 295 Rejected Yes 05 IESG review: Randy asks about doc length, discovery, virtual home nets 294 Rejected Yes 22 IESG review: Steven Bellovin's comments ha-ipsec 293 Adopted Yes 22 Align BAD calculation rules in Sections 5 and 6.2.7 292 Adopted Yes 05 Stephen Kent's comments on ha-ipsec 291 Rejected Yes 21 IESG review: take in account the site-local decisions from IPv6? 290 Adopted Yes 22 IESG review: base nits from Erik Nordmark 289 Adopted Yes 22 IESG review: additional base comments from Erik Nordmark 288 Adopted Yes 22 IESG review: base comments from Russ Housley 287 Adopted Yes 05 IESG review: ha-ipsec-04.txt 286 Rejected Yes 21 Replace HAO, RH2 with tunnels 285 Rejected Yes 04 Path MTU discovery and per-interface SPD entries 284 Adopted Yes 05 Bernard Aboba's comments on ha-ipsec-04 283 Adopted Yes 22 Questionable mobile node requirement 282 Adopted Yes 22 IESG review: security - IKE keyword part 281 Adopted Yes 22 IESG review: technical 280 Adopted Yes 22 IESG review: editorial 279 Adopted Yes 22 Connecthathon: NS source from HA during de-registration 278 Adopted Yes 22 Connecthathon: Movement detection and same link-local addresses on different routers 277 Adopted Yes 22 Connecthathon: Should CN respond to BUs with H=1? 276 Adopted Yes 22 Connecthathon: Sequence number example wrong 275 Rejected Yes 22 Connecthathon: Should HA respond to NS with source=registered home address? 274 Adopted Yes 22 Connecthathon: Send ICMPv6 Param Problem and MH BE without BCE lookup 273 Adopted Yes 22 Connecthathon: Can HA be a CN simultaneously? 272 Rejected Yes 22 Instructions for treating MPSes from home link 271 Rejected Yes 04 IKE Main mode DoS problem 270 Adopted Yes 04 On-the-wire format error with alt-coa in ha-ipsec 269 Adopted Yes 22 Clarify that destination's BCE should not be used for HOTI 268 Adopted Yes 22 Looping BCE entries 267 Adopted Yes 22 Additional editorial issues from Ed, Bryan, Greg (Drafts 21 and 03 posted, IESG review and IETF Last Call started on Feb 26th) 266 Adopted Yes 21 Editorial issues from Ed Remmell 265 Adopted Yes 04 No IANA considerations in ha-ipsec? 264 Adopted Yes 21 Editorial in 10.3.1 263 Rejected Yes 20 Adopt a single tunnel SA pair scheme 262 Adopted Yes 21 Editorial on reasons of rejected BUs 261 Rejected Yes 20 Make CN binding procedure more optimistic 260 Adopted Yes 21 Nits on CN binding procedure 259 Rejected Yes 20 Should not expose router's address with R bit 258 Adopted Yes 21 Remove configurability of site-local forwarding 257 Rejected Yes 20 Split the doc 256 Adopted Yes 21 Infinite lifetime considered harmful (reopening 172) 255 Adopted Yes 21 How to respond to a home registration with a BAD (reopening 177) 254 Rejected Yes 20 Require MN to initiate IKE after movements 253 Adopted Yes 21 B.2 HAO dangers vs. current 9.3.1 IPsec rule 252 Rejected Yes 20 BA DAD failure should not disable address forever 251 Adopted Yes 21 Confusing HAO rule in 11.7.2 250 Adopted Yes 21 Disallow BCE creation from all ICMPs or ICMP errors? 249 Adopted Yes 21 (AD) IPsec HA-MN document nits 248 Adopted Yes 21 More instructions needed for setting L=0 247 Rejected Yes 20 Rate limitation too severe when multiple HoAs 246 Adopted Yes 21 Check H bit when verifying on-link address? 245 Adopted Yes 21 Prefix fetching intervals not defined 244 Adopted Yes 21 Clarify de-reg sender sets both life=0 and coa=hoa 243 Adopted Yes 21 Renewing registrations when lifetime approaches zero (reopening 179) 242 Adopted Yes 21 Avoid "forwarding to tunnel" terminology for MLD 241 Adopted Yes 21 Editorial and semi-editorial issues from Pekka Savola 240 Rejected Yes 20 Remove randomization of DHAAD 239 Adopted Yes 21 Better justification why DHAAD doesn't need security 238 Rejected Yes 20 Send BAs via home to avoid special case 237 Adopted Yes 21 Avoid keywords in mandating RO usage 236 Adopted Yes 21 Appliances that don't have config knobs 235 Adopted Yes 21 What if prefixlen != 64 and DHAAD is used? 234 Adopted Yes 21 Roadmap of different coa usage scenarios needed 233 Adopted Yes 21 160 vs. 128 bit entropies in RR 232 Rejected Yes 20 DHAAD is feeping creaturism? 231 Adopted Yes 21 Prefix discovery changes needed due to S=0 removal? 230 Adopted Yes 21 DAD delay text suggestion (reopening issue 154) 229 Adopted Yes 21 Deregistration keygen token text clarification 228 Adopted Yes 21 Allow tunnel mode IPsec too in ha-ipsec-02 227 Adopted Yes 21 SHOULD for processing BRRs (reopening issue 210) 226 Rejected Yes 20 Reserved field settings nit 225 Adopted Yes 21 Issue 190 resolution missed from draft 20 224 Rejected Yes 20 Gratuitous NA for link locals? 223 Adopted Yes 21 Proxy ND and source address 222 Rejected Yes 20 De-registration from foreign link 221 Adopted Yes 21 MAY vs may in RR token reuse 220 Adopted Yes 21 BAD alignment vs. requirement to be at the end 219 Adopted Yes 21 Nested encapsulation and other IPsec comments 218 Adopted Yes 21 HA LLA discovery when returning home 217 Adopted Yes 21 Type 0 and type 2 routing header nit (Drafts 20 and 02 posted, IETF Last Call started on Jan 23rd) 216 Adopted Yes 20 IPsec processing steps and HAO acceptance test 215 Adopted Yes 20 Mobile node vs. mobile node and RO destination 214 Adopted Yes 20 Zero vs. one minimum limit of options 213 Adopted Yes 20 BAD alignment = 8n+2 or not? 212 Adopted Yes 20 Make default address selection draft reference non-normative 211 Adopted Yes 20 Routing header type 0 and 2 interworking 210 Adopted Yes 20 Movement-related nits from Vijay Devarapalli 209 Rejected Yes 20 Problem with site-local and global prefixes 208 Adopted Yes 20 Editorial nits from Vijay Devarapalli 207 Adopted Yes 20 AI option not be included in MPAs 206 Adopted Yes 20 Clarify "run MLD" 205 Adopted Yes 20 Special case tunnel forwarding text problem 204 Adopted Yes 20 Editorial nits from Gabriel Montenegro 203 Adopted Yes 20 Editorial issues from Ed Remmell 202 Adopted Yes 20 S=0 and authz check 201 Adopted Yes 20 SPD entry problems from Greg O'Shea 200 Adopted Yes 20 Use the mobility option #2 199 Adopted Yes 20 Keygen token vs. nonce term 198 Rejected Yes 20 Use virtual interface to simplify MIPv6 197 Adopted Yes 20 Remote home address discovery (B.5) 196 Adopted Yes 20 BU rate limitation and fast handovers 195 Adopted Yes 20 MN-HA IPsec: more details on IKE processing 194 Adopted Yes 20 MN-HA IPsec: more details for tunnel end-point changes 193 Rejected Yes 20 MN-HA IPsec: optimized vs. simple format 192 Rejected Yes 20 MN-HA IPsec: authorization in SPD or MIPv6? 191 Adopted Yes 20 Home Address option format and alignment 190 Adopted Yes 20 MUST report with BE if no BCE 189 Adopted Yes 20 Results of the security review 188 Rejected Yes 20 L bit problems 187 Rejected Yes 20 Remove random order required for DHAAD replies 186 Adopted Yes 20 Batching of deletes and nonce indices 185 Adopted Yes 20 Nonce indices option text improvements 184 Adopted Yes 20 S bit unclarities 183 Adopted Yes 20 (AD small issues) Back-off retransmission for MPS 182 Adopted Yes 20 (AD small issues) Configured care-of addresses 181 Adopted Yes 20 (AD small issues) Basing retranmission on DupAddrDetectTranmits of the home link 180 Rejected Yes 20 (AD small issues) Marking nodes that don't support HAO 179 Adopted Yes 20 (AD small issues) Prefix distribution and DHAAD problems 178 Adopted Yes 20 (AD small issues) MUST vs. SHOULD stop BRRs when BU arrives 177 Adopted Yes 20 (AD small issues) ICMP error vs. silently drop 176 Adopted Yes 20 (AD small issues) HAO accessible for upper layers 175 Rejected Yes 20 (AD small issues) Mobility option type range split 174 Rejected Yes 20 (AD small issues) Infinite lifetime 173 Rejected Yes 20 Length field to DHAAD reply 172 Adopted Yes 20 Infinite lifetime and MN forgets its binding and HA 171 Adopted Yes 20 Allow BRR from HA 170 Adopted Yes 20 Sloppiness about overlapping coverage areas 169 Adopted Yes 20 De-reg and failure fix 168 Rejected Yes 20 L bit is not worth the trouble 167 Adopted Yes 20 MLD source on foreign link 166 Adopted Yes 20 Allow DHAAD in home 165 Adopted Yes 20 HA address in DHAAD response always 164 Adopted Yes 20 Sequence number update / authorization order 163 Adopted Yes 20 (AD) Run MLD 162 Adopted Yes 20 (AD) Site-local issues 161 Adopted Yes 20 (AD) MIPv6 and DHCP 160 Adopted Yes 20 (AD) HA discovery single address woes 159 Adopted Yes 20 (AD) D bit semantics 158 Adopted Yes 20 (AD) When to start RO 157 Adopted Yes 20 (AD) Address collision action 156 Adopted Yes 20 (AD) Conflicts with ND specifications 155 Adopted Yes 20 (AD) Editorial comments 154 Adopted Yes 20 (AD) ND constants (Draft 19 submitted to AD Review on October 30th, 2002) 153 Adopted Yes 19 Authenticate insufficient resources -status? 152 Adopted Yes 19 Preferred vs. valid lifetimes 151 Adopted Yes 19 MH Type unknown and bad source address 150 Adopted Yes 19 De-reg and failure 149 Adopted Yes 19 Separate authorization away from home agent ipsec 148 Adopted Yes 19 Requirements section nits and missed requirements 147 Adopted Yes 19 Inconsistent RA and prefix rules 146 Rejected Yes 19 Preconfigured Kbm for CN BUs 145 Adopted Yes 19 Multiple tries to different HAs and DAD 144 Adopted Yes 19 BU or MPS as an ack of unsolicited MPAs? 143 Rejected Yes 19 BU auth method type needed? 142 Adopted Yes 19 Sending BA errors conflict 9.4.1/9.4.4 141 Adopted Yes 19 MPA, MPS security requirement 140 Adopted Yes 19 Checksum or BAD calculated first? 139 Adopted Yes 19 9.4.1 and 11.7.2 text in conflict about HAO in CN BUs 138 Adopted Yes 19 Where to store COT cookies, in Binding List? 137 Adopted Yes 19 Conflicts between Sections 5.2.6 and 11 136 Adopted Yes 19 Rate limiting for RR not necessary 135 Rejected Yes 19 Use BAD optionally also for home registrations 134 Rejected Yes 19 Some (R) bits on and some off is legal? 133 Adopted Yes 19 Clarify "correspondent node address" and "BU" for BAD calculation 132 Rejected Yes 19 Refer to draft-mkhalil-ipv6-fastra-02.txt 131 Adopted Yes 19 No need to change nonce/Kcn if not used 130 Adopted Yes 19 Mauro Tortonesi's editorial comments 129 Rejected Yes 19 New status code for administrative disable of RO? 128 Adopted Yes 19 More editorial comments from Vesa-Matti Mantyla 127 Adopted Yes 19 When can RR start, after home BU or BA? 126 Adopted Yes 19 Rate limiting vs. exponential back-off 125 Adopted Yes 19 RH processing order inconsistency 124 Adopted Yes 19 MPA security resolution isn't in draft 18 123 Adopted Yes 19 Need DHAAD and MPS/MPA security story in Sect.14 122 Adopted Yes 19 More editorial comments from Vesa-Matti Mantyla 121 Adopted Yes 19 Remove UID? 120 Adopted Yes 19 Unclear issues in MPA 119 Adopted Yes 19 Why is Kbu length 16 bytes? 118 Adopted Yes 19 Both cookies expired -status code 117 Adopted Yes 19 Home cookie enough for de-reg? 116 Adopted Yes 19 BRR response when deleting BCE: lifetime or home address? 115 Adopted Yes 19 Make BAD the last option 114 Adopted Yes 19 What to do if HOTI/COTI tests fail? Discard? 113 Adopted Yes 19 Nonce indices support MUST? 112 Adopted Yes 19 Editorial comments from Vesa-Matti Mantyla 111 Adopted Yes 19 MH is upper-layer protocol when calculating pseudo-headers? 110 Rejected Yes 19 Specify order for mobility options? 109 Adopted Yes 19 RH0 forbidden or allowed? 108 Adopted Yes 19 Home bindings when L=0 107 Adopted Yes 19 MPA editorial issues 106 Adopted Yes 19 Unclear authenticator coverage part 105 Adopted Yes 19 State machine problem, missing Start RR 104 Adopted Yes 19 6.2.7 claims only BUs have BADs 103 Adopted Yes 19 Cookie lifetime clarifications needed 102 Adopted Yes 19 Clarifications for Section 5 101 Adopted Yes 19 Missing requirements in Section 8 100 Adopted Yes 19 Editorial review comments from Samita Chakrabarti 99 Adopted Yes 19 Authenticate BAs where status=137-139? 98 Adopted Yes 19 Concatenate 0/1 before making a cookie? 97 Adopted Yes 19 Binding Refresh Advice type number wrong 96 Adopted Yes 19 Do new MNs get new nonces or not? 95 Adopted Yes 19 Unclear references to RH (type 0 or 2) 94 Adopted Yes 19 Unclear text about "address suitable for RH" 93 Adopted Yes 19 MH length to include first 8 bytes or not? 92 Adopted Yes 19 Reflection attack using BUs and BAs 91 Adopted Yes 19 Status field value inconsistencies 90 Adopted Yes 19 Clarify whether to use HAO or IPv6 Src for checksum 89 Adopted Yes 19 Shorten MH Type field to 8 bits? 88 Adopted Yes 19 Need to redefine MIN_DELAY_BETWEEN_RAS? 87 Adopted Yes 19 BA length and padding wrong 86 Adopted Yes 19 References to the refresh field still exist (WG Last Call period terminated after this on July 16th, 2002) 85 Adopted Yes 19 BE home address field rules unclear 84 Adopted Yes 19 Typos in draft 18, from Brian Haley 83 Adopted Yes 19 Clearing BC in a reboot vs. non-volatile memory 82 Adopted Yes 19 Remove suggestions on when to do RR after BRR 81 Rejected Yes 19 Shorten mobile cookies to 32 bits and use padding 80 Rejected Yes 19 Please put back the R bit 79 Adopted Yes 19 Too drastic collision action for link-local addresses 78 Adopted Yes 19 HAO and ND traffic 77 Adopted Yes 19 MH processing section (9.2.1) rewrite 76 Adopted Yes 19 Keep appendix A (state machines) or not? 75 Rejected Yes 19 RS or NS for probing the router 74 Adopted Yes 19 Using the CoA for some communications 73 Adopted Yes 19 MaxRtAdvInterval and configuring advertisements off 72 Adopted Yes 19 Forwarding from Previous Care of Address 71 Adopted Yes 19 HA Service Discovery and MN Address Provisioning 70 Adopted Yes 19 Is Alternate Care of Address needed? 69 Adopted Yes 19 Security between the MN and HAa 68 Adopted Yes 19 Security with CN needed for RO 67 Adopted Yes 19 Miscellaneous editorial comments from Kevin Miles 66 Adopted Yes 19 De-registration with S=0 semantics 65 Adopted Yes 19 BA and RH usage descriptions inconsistent 64 Adopted Yes 19 Editorial issues by Joe Lau 63 Adopted Yes 19 Cover only basic multicast in base RFC, rest later 62 Adopted Yes 19 Link-local CoAs and HoAs 61 Rejected Yes 19 Better justification for RR 60 Rejected Yes 19 Editorial comments from Subrata Goswami on reqs section, data structures 59 Adopted Yes 19 Editorial suggestions from Kevin Miles 58 Adopted Yes 19 BA/BU lifetime unit mismatch, and BA Status value mismatches 57 Adopted Yes 19 Mike Roe's editorial comments 56 Adopted Yes 19 DHAAD responses and bandwidth/own ip optimizations 55 Adopted Yes 19 Editorial review comments by James Kempf 54 Adopted Yes 19 Clarify that either IPsec or BCE is needed for HAO 53 Adopted Yes 19 HAO keyword (reopening issue #45?) 52 Adopted Yes 19 8.2 editorial problem (WG Last Call period begins after this on July 1, 2002) 51 Adopted Yes 18 Cookie lengths can be smaller? 50 Adopted Yes 18 Lifetime issue from Hesham Soliman's comments 49 Adopted Yes 18 New home addresses and SAs 48 Adopted Yes 18 DAD and forwarding from a previous care-of address on the same link 47 Adopted Yes 18 Cookie explanation editorial 46 Adopted Yes 18 Compress Status code values for BA? 45 Adopted Yes 17 HAO keyword same as for RO or MUST? 44 Adopted Yes 18 Finding HA's link-layer address 43 Adopted Yes 18 Is Refresh useful? 42 Adopted Yes 18 {Min,Max}RtrAdvInterval 41 Adopted Yes 18 Krishna Kumar's editorial comments 40 Adopted Yes 18 Krishna Kumar's technical comments 39 Adopted Yes 18 Should the HA defend the link local address of the MN? 38 Adopted Yes 18 Is the 'S' bit needed? 37 Adopted Yes 18 DAD rule in 10.2 for link-local only? 36 Adopted Yes 18 Prefix sol/adv security 35 Adopted Yes 18 Hesham Soliman's comments 34 Rejected Yes 18 CoA test also for home registrations? 33 Adopted Yes 18 BE and lack of home address 32 Adopted Yes 18 State machine simplification 31 Adopted Yes 18 How to process HAO? 30 Rejected Yes 18 'S' bit and MN returning home; DAD problems (But see issue #38) 29 Adopted Yes 18 Rate limitation of BE messages 28 Adopted Yes 18 BRR effects on routing 27 Adopted Yes 18 Should HAO be used in BUs to CNs? 26 Adopted Yes 18 HOT path when the CN already has a BCE 25 Adopted Yes 18 To use RH or not with BAs 24 Adopted Yes 18 Option Length for PadN 23 Rejected Yes 18 S-bit and link-local address creation (But see issue #39) 22 Adopted Yes 18 Route optimization SHOULD or MUST for CNs? 21 Adopted Yes 17 Cookie lifetimes, one or MIN and a MAX? 20 Adopted Yes 18 How to allow non-RR authorization? 19 Adopted Yes 17 Editorial and technical suggestions from Samita Chakrabarti 18 Adopted Yes 18 Prefix advertisement acknowledgement problem 17 Adopted Yes 17 Editorial suggestions from Robert Chalmers 16 Adopted Yes 17 Error message to give when receiving unrecognized MH Type 15 Adopted Yes 17 Site local HoAs and tunnel protection 14 Adopted Yes 17 Require encryption on HA-MN tunnel for MH messages? 13 Rejected Yes 18 Is the SPI field necessary? (But see a separate draft) 12 Adopted Yes 18 State machines for CN/MN/HA behaviour 11 Adopted Yes 18 Should HAO be used in home registrations? 10 Adopted Yes 18 ESP vs. AH for home registrations 9 Adopted Yes 17 Terminology (option, parameter, RR procedure, ...) 8 Rejected Yes 20 Bidding down protection 7 Adopted* Yes 17 MH formatting issues 6 Adopted Yes 17 Reuse of nonces while moving fast 5 Adopted Yes 17 Alternative-CoA usage rules 4 Adopted Yes 17 Is BM authentication necessary? 3 Adopted Yes 18 BA and BR authentication mechanism with a cookie exchange? 2 Adopted Yes 17 NVM rules for replay protection of BUs to the HA 1 Adopted Yes 17 Suboptions on HAO