[c-nsp] GRE question ..OSPF equal path

[Arie Vayner]

Vikas,

If you use OSPF, and have an equal cost situation, then you could
either break the equal cost route by changing the costs. I am not sure
this is what you want, as it would affect all traffic. Another option
is to look at policy based routing...

Can you provide some more info on what you want to accomplish?

Arie

On 6/27/06, Vikas Sharma <vikassharmas at gmail.com> wrote:
> Hi Arie,
>
> Thanks for the reply.
>
> Inline with the below mail, how can I force OSPF to use certain path (e.g.
> If-1) to establish GRE tunnel when router have two equal cost path available
> i.e If-1 and If-2 has the same cost and my requirement is to create GRE
> tunnel through If-1 always. This is my requirement though looks strange.
>
> We have OSPF running in the network
>
> Regards
> Vikas Sharma
>
>
> On 6/26/06, Arie Vayner <ariev at vayner.net> wrote:
> >
> > There should not be any issue with the new GRE packet to be routed via
> > the same interface. It's a whole new packet, and has nothing to do
> > with the input GRE packets.
> >
> > Arie
> >
> > On 6/26/06, Vikas Sharma <vikassharmas at gmail.com> wrote:
> > > Hi,
> > >
> > > I have a router that have two interface. Interfaces have IPs assigned to
> > > them and there is one Virtual IP. There is a GRE tunnel established
> > between
> > > VIP and remote router. Any packet coming to VIP comes via if-1. If-2 and
> > > connected interface has been given higher cost. My question is : If the
> > > packet is coming via GRE tunnel (ofcourse through if-1), can it go back
> > from
> > > the same interface if-1? or does the routing loop prevention scheme will
> > > prevent it from going via if-1. Is GRE interface is considered as a
> > separate
> > > interface then if-1 and if-2? I have OSPF working in the network.
> > >
> > > Regards
> > > Vikas Sharma
> > > _______________________________________________
> > > cisco-nsp mailing list  cisco-nsp at puck.nether.net
> > > https://puck.nether.net/mailman/listinfo/cisco-nsp
> > > archive at http://puck.nether.net/pipermail/cisco-nsp/
> > >
> >
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>