Reviewer: Roni Even Review result: Almost Ready I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at <https://trac.ietf.org/trac/gen/wiki/GenArtfaq>. Document: draft-ietf-hip-native-nat-traversal-?? Reviewer: Roni Even Review Date: 2018-02-26 IETF LC End Date: 2018-02-26 IESG Telechat date: Not scheduled for a telechat Summary: The document is almost ready for publication as a standard track RFC Major issues: Minor issues: 1. in section 4.2 "Gathering of candidates MAY also be performed by other means than described in this section. For example, the candidates could be gathered as specified in Section 4.2 of [RFC5770] if STUN servers are available, or if the host has just a single interface and no STUN orData Relay Server are available." I did not see this a different ways since section 3 says "The hosts use either Control Relay Servers or Data Relay Servers (or other infrastructure including STUN or TURN servers) for gathering the candidates." so STUN is mentioned also here. 2. In section 4.6.2 "The connectivity check messages MUST be paced by the Ta value negotiated during the base exchange as described in Section 4.4. If neither one of the hosts announced a minimum pacing value, a value of 20 ms SHOULD be used." in section 4.4 the default value is 50 ms? 3. in section 5.4 what about "ICE-STUN-UDP 2" ; I assume it is not relevant but this is also the IANA registeration 4. In section 5.5 "The TRANSACTION_PACING is a new parameter" it is not new it is in RFC5770 5. In section 5.10 "SERVER_REFLEXIVE_CANDIDATE_ALLOCATION_FAILED 63" is the only new one. this also relates to section 7 that says that all error values in section 5.10 are new while the rest are in RFC5770. Also there is no mention in section 7 of which registry is used for the error values. Nits/editorial comments: 1. Expand SPI and LSI when first appear in the document 2. in section 2 "the base of an candidate" should be "a candidate" 3. In section 3 "so it is the Initiator may also have registered to a Control and/or Data Relay Server" maybe "so the Initiator may also need to register to a Control and/or Data Relay Server" 4. In section 4.2 "However, it is RECOMMENDED that a Data Relay Client registers a new server reflexive candidate for each its peer for the reasons described" maybe "for each of its..." 5. In section 4.2 I could not parse the sentence "where Ta is the value used for Ta is the value used for the" 6. in section 4.6 "as defined in section in 6.7 in [RFC7401]:" change to "as defined in section 6.7 in [RFC7401]:"
