Routers do not need to support route optimization or home agent functionality.
Routers SHOULD support the generic mobile IP requirements.
I think it would be better to replace the above with something like:
Routers SHOULD support the router-specific extensions defined in Section 8.3 of MIPv6
Yes, as already agreed in another e-mail.
And include a normative reference to the document.
7.2 Securing Signaling between Mobile Nodes and Home Agents
The security mechanisms described in [MIPv6-HASEC] MUST be supported by nodes implementing mobile node or home agent functionality specified in Mobile IP [MIPv6].
So would presumably the applicable parts of Section 8 of the mipv6 spec. Better to cite them explicitely.
Generic Packet Tunneling [RFC-2473] MUST be supported for nodes implementing mobile node functionality or Home Agent functionality of Mobile IP [MIPv6].
This may not need mentioning, as it may already be covered in Section 8 of the mipv6 spec.
Hmm... is node requirements a list of all specs needed for IPv6, or a list of specs which together with their normative refs are needed? This hasn't been very clear.
My take is that we should list all IPv6 specifications, but we can leave out some generic normative references, 2119 et al.
Actually, this entire section may warrant rethinking given the existance of Section 8 in the MIPv6 spec.
The [MIPv6-HASEC] reference is in Section 8 (though indirectly). But per above, I'd rather keep all clearly IPv6-specific documents listed in the node requirements document.
Here's a suggested reformulation. Keep in mind that while the Mobile IPv6 specification says what is required for a mobile node, it does not have a keyword which states when such functionality is needed. This is why the keywords in the below text are important.
7. Mobile IP
The Mobile IPv6 [MIPv6] specification defines requirements for the following types of nodes:
- mobile nodes - correspondent nodes with support for route optimization - home agents - all IPv6 routers
Hosts MAY support mobile node functionality described in Section 8.5 of [MIPv6], including support of generic packet tunneling [RFC-2473] and secure home agent communications [MIPv6-HASEC].
Hosts SHOULD support route optimization requirements for correspondent nodes described in Section 8.2 of [MIPv6].
Routers SHOULD support the generic mobility-related requirements for all IPv6 routers described in Section 8.3 of [MIPv6]. Routers MAY support the home agent functionality described in Section 8.4 of [MIPv6], including support of [RFC-2473] and [MIPv6-HASEC].
--Jari
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