bird and OSPF on p2p

[Joakim Tjernlund]

owner-bird-users at atrey.karlin.mff.cuni.cz wrote on 2012/08/22 15:34:54:
>
> On Wed, Aug 22, 2012 at 04:32:24PM +0600, Eugene M. Zheganin wrote:
> > Hi.
> >
> > On 22.08.2012 14:39, Ondrej Zajicek wrote:
> >> As i understand it correctly, you have Quagga at one end and BIRD
> >> on the other? AFAIK there is some problem related to unnumbered
> >> ptp links in Quagga which causes incompatibility with BIRD,
> >> Joakim Tjernlund has some patches for that for Quagga.

Yes, they went in a few weeks ago too :) ( there is one patch outstanding though)
current released quagga cannot handle ifindex in the LSA(like BIRD do for /32 masks).
This is an old defect in Q. so BIRD is not to blame.

> > As far as I understand unnumbered interfaces are those that have
> > something like this
> >
> > interface Loopback0
> > ip address 1.1.1.1/255.255.255.255
> > !
> > interface Tunnel0
> > ip unnumbered Loopback0
> >
> > And I have no knowledge about quagga possibilities here, and no such
> > configuration in my quagga too.
> ...
> > Excuse me, but why do you consider /32 prefix as improper ?
>
> Generally, i consider that network has proper IP prefix if all
> interfaces connected to that network share that prefix [*] (i.e.
> 192.168.1.10 and 192.168.1.20 in 192.168.1.0/24, or even 192.168.1.10
> and 192.168.1.11 in 192.168.1.10/31). This is usual network setup.

Yes, a /32 mask is not a "proper" prefix so you are quite right. What to
do with these varies in existing ospf impl.

  Jocke