Re: routers - (was: Re: "ROUTERS" vs. "routers")

[Fred Templin <[e-mail]>]

Responding one final time to my own post, I think we should forget
this business about hijacking and just use Matt's document instead:

  
http://www.ietf.org/internet-drafts/draft-ietf-ipngwg-icmp-name-lookups-10.txt

It looks mature, well fleshed out, and has some nice features
like references to interoperable implementations.

I also wrote a document of my own that references Matt's
work and posted it to the I-D registrar. You can find a
copy in the interim at:

  http://www.geocities.com/osprey67/isnoid-01.txt

Thanks - Fred
[e-mail]

Fred Templin wrote:

>
>
> Fred Templin wrote:
>
>> The two ways I see to do this are to either specify a new IPv6 ND option
>> (call it a "Type II Router Solicitation" for lack of a better name) 
>> or to add
>> bits to the existing IPv6 Router Soliciation message (e.g., in the 
>> "Reserved"
>> field) that indicate the type of information being solicited. 
>
>
>
> To respond to my own post, it just occurred to me there may be
> a  least one other possibility (and probably countless others) to
> get the needed message types. Maybe we could hijack an unused
> ICMPv6 Type code from the IANA registries?
>
> A quick look at the 'icmpv6-parameters' registry shows:
>
> 138  Router Renumbering                               [Crawford]
> 139  ICMP Node Information Query                      [Crawford]
> 140  ICMP Node Information Response                   [Crawford]
>
> I see that the Router Renumbering option is used by RFC 2894,
> but does anyone know if the other options are used anywhere?
>
> If not, the "Node Information Query" would be a perfect fit
> for the "Type II Router Solicitation" I've been asking about,
> and the "Node Information Response" could be used to carry
> the Route Information Options needed by:
>
>  
> http://www.ietf.org/internet-drafts/draft-ietf-ipv6-router-selection-02.txt 
>
>
> instead of hacking the IPv6 Router Advertisment message format.
> Sounds like a win-win, doesn't it?
>
> Matt, can you comment as to the availability of the Type codes?
>
> Thanks - Fred
> [e-mail]
>
>
>
>
>
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