Re: [OSPF] OSPFv2 operation on broadcast media with "slacked"/"discontinuous" IP addressing

[Acee Lindem <[e-mail]>]

David,
Nobody has ever suggested this - why do think it useful?
Thanks,
Acee 
On Jun 23, 2012, at 9:31 AM, David Lamparter wrote:

> Hi,
> 
> 
> out of a rather funny misunderstanding of RFC 5309, I've ended up with
> half an implementation of OSPF running in ignorance of the IP subnet
> mask on a broadcast network.  After cleaning up the misunderstanding and
> taking a step back, I found draft-ietf-ospf-hybrid-bcast-and-p2mp, which
> I expected to contain a note about this, but no such thing.
> 
> The general idea would be to operate a broadcast medium with a /32
> subnet mask, possibly unnumbered, and allowing adjacencies with just
> about anything that sends a Hello (and passes auth).
> 
> The link can operate as regular broadcast, hybrid-bcast-p2mp, or P-t-P
> (the last would amount to RFC 5309 with the detail that the peer address
> is not known up front.)
> 
> (For OSPFv3, this is obviously not interesting since with link-local
> addresses, there is no notion of similar same-subnet restrictions.)
> 
> I haven't found anything on this - is this mode of operation already
> described somewhere?
> 
> 
> Cheers,
> 
> David
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