Hi,
draft-despres-softwire-sam-01 has been posted.
No time slot is planned at this IETF meeting to present it, but:
- Questions and comments are welcome at any time
- It is in part a complement to draft-despres-softwire-6rdplus-00 for which a
time slot is expected.
Regards,
RD
Abstract:
Stateless Address Mapping (SAM) is a generic mechanism to statelessly
establish tunnels, point-to-multipoint, for packets of an address
family that traverse domains whose routing is in another address
family (mesh softwires). It extends tunneling principles of [6rd] to
other address-family combination than IPv6 across IPv4 domains. It
thus introduces, for a variety of use cases, a simpler mesh-softwire
model than that of [RFC5565].
Among SAM use cases, some are solutions to previously unsolved
problems: native IPv6 across IPv4 NATs, with optimized paths;
multihoming with independent CPEs and provider-aggregatable prefixes;
public IPv4 addresses across IPv6-only domains with optimized paths;
static sharing of IPv4 addresses, without impact on routing
information bases.
Table of Contents:
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. The SAM model . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
2.2. C-SAM and P-SAM Parameters - Mapping Rules . . . . . . . 6
2.3. Encapsulation and Fragmentation Considerations . . . . . . 7
2.4. Port sets of IPv4E prefixes . . . . . . . . . . . . . . . 8
2.5. Acquisition of Parameters by P-SAMs and C-SAMs . . . . . . 9
3. Use-Case examples . . . . . . . . . . . . . . . . . . . . . . 9
3.1. Native IPv6 across NAT44 CPEs (6rd+) . . . . . . . . . . . 9
3.2. Public IPv4 addresses and IPv4E prefixes across
IPv6-only Domains (4rd) . . . . . . . . . . . . . . . . . 10
3.3. Multihoming and Renumbering with PA Prefixes . . . . . . . 12
3.4. An Experiment at Telecom Bretagne . . . . . . . . . . . . 13
4. Security Considerations . . . . . . . . . . . . . . . . . . . 16
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 17
6. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 18
7. References . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.1. Normative References . . . . . . . . . . . . . . . . . . . 18
7.2. Informative References . . . . . . . . . . . . . . . . . . 18
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 20
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