Re: RIP-2 Addresses Links and MIB problems

Fred Baker <fbaker@acc.com> Tue, 23 March 1993 14:01 UTC

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From: Fred Baker <fbaker@acc.com>
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To: ietf-rip@xylogics.com, jch@nr-tech.cit.cornell.edu
Subject: Re: RIP-2 Addresses Links and MIB problems

I asked during the working group meetings if we wanted to address
unnumbered links in RIP-II, and the group seemed to feel that was
"beyond scope."  Like you, I have implemented RIP over unnumbered
links in the past and feel that it is a solvable problem given
the right information.

The address of the routing neighbor is not sufficient to identify
an unnumbered link, for two reasons. First, it is possible to have
two links to the same neighbor; this would not distinbguish them.
Second, it is possible to have an interface with no active neighbor
at all. In that case, it is not possible to configure the interface.
It is not possible to turn it on since, wityhout an active neighbor,
it has no name.

For this reason, if unnumberedd interfaces are in view, I would suggest
simply numbering them.