Re: [v6ops] new draft: draft-bao-v6ops-rfc6145bis
Alberto Leiva <ydahhrk@gmail.com> Fri, 24 July 2015 19:55 UTC
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References: <201507041147.t64Bl2oR005661@irp-lnx1.cisco.com> <559A5DB6.4090602@cernet.edu.cn>
Date: Fri, 24 Jul 2015 14:55:02 -0500
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From: Alberto Leiva <ydahhrk@gmail.com>
To: Xing Li <xing@cernet.edu.cn>
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Cc: v6ops@ietf.org, draft-bao-v6ops-rfc6145bis@tools.ietf.org
Subject: Re: [v6ops] new draft: draft-bao-v6ops-rfc6145bis
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Hi > Destination Address: In the stateless mode, which is to say that if > the IPv4 destination address is within a range of configured IPv4 > stateless translation prefix, the IPv6 destination address is the > IPv4-translatable address derived from the IPv4 destination > address per [RFC6052], Section 2.3. A workflow example of > stateless translation is shown in Appendix A of this document. > Besides the default algorithm defined [RFC6052], other mechanisms > also exist, which are defined in Section 6 of this document (EAM) > and in [I-D.ietf-softwire-map-t]. > > In the stateful mode (which is to say that if the IPv4 destination > address is not within the range of any configured IPv4 stateless > translation prefix), the IPv6 destination address and > corresponding transport-layer destination port are derived from > the Binding Information Bases (BIBs) reflecting current session > state in the translator as described in [RFC6146]. I find this a little excessive. It also seems to mandate no other address translation mechanisms should exist (is this true?). I suggest something like this: Destination Address: The address translation algorithm is left open for other documents to define. At time of writing, implementations can choose (according to needs) among RFC6052, RFC6146, RFC 6219, RFC6791, EAM ([I-D.ietf-v6ops-siit-eam]) and/or MAP-T ([I-D.ietf-softwire-map-t]). Repeat (Or make an new section and point there) for IPv4-to-IPv6 source address, and the IPv6-to-IPv4 source and destination addresses. On Mon, Jul 6, 2015 at 5:51 AM, Xing Li <xing@cernet.edu.cn> wrote: > fred@cisco.com 写道: > > A new draft has been posted, at > http://tools.ietf.org/html/draft-bao-v6ops-rfc6145bis. Please take a look at > it and comment. > > > > We have submitted this draft to look for v6ops' comments. > > The changes compared with RFC6145 are: > > (1) From the erratum report > http://www.rfc-editor.org/errata_search.php?rfc=6145 > > (2) From 6man's document concerning "Deprecating the Generation of IPv6 > Atomic Fragments" > > https://datatracker.ietf.org/doc/draft-ietf-6man-deprecate-atomfrag-generation/ > Ntote that RFC6145 already has this mechanism, but it is just an > option. The rfc6145bis makes this mechanism the default and the only one. > > (3) Refer to RFC6791 for "Stateless Source Address Mapping for ICMPv6 > Packets" > https://datatracker.ietf.org/doc/rfc6791/ > > (4) Include EAM address mapping algoritm which is the current work of > v6ops, "Explicit Address Mappings for Stateless IP/ICMP Translation" > https://datatracker.ietf.org/doc/draft-ietf-v6ops-siit-eam/ > There are some discussions concerning this issue, since EAM is an > address mapping algorithm (RFC6052's alternative), not a protocol mapping > algorithm. We include EAM in RFC6145bis because it is just a static > configuration and simple. If additional details, for example hairpinning, > needs to be included, I think those details should be in another document. > > We are looking for the comments. > > xing > > > _______________________________________________ > v6ops mailing list > v6ops@ietf.org > https://www.ietf.org/mailman/listinfo/v6ops > > > > > > _______________________________________________ > v6ops mailing list > v6ops@ietf.org > https://www.ietf.org/mailman/listinfo/v6ops >