[Re: [nsp] policy-routing GRE tunnel packets]

Joshua Sahala joshua.ej.smith at usa.net
Wed Aug 20 21:15:24 EDT 2003

i use pbr on some of my tunnels

int tun3
ip policy route-map my_map

route-map my_map permit 10
match ip address 101
set int tun2

access-list 101 permit ip

lather, rinse, repeat for each source/destination pair

perhaps i am not understanding just what you want, but this is
what works for me.



Alexander Bochmann <bochmann at FreiNet.de> wrote:

> ..on Tue, Aug 19, 2003 at 05:47:00PM +0200, Alexander Bochmann wrote:
>  > Theoretically, Tunnel1 packets should be subject to 
>  > the local policy route-map and be sent out via fa0/1 -
>  > but, in policy routing debugging, nothing is showing 
>  > up right now
> I've come to the conclusion that policy-routing the 
> GRE encapsulated Tunnel packets is not possible. 
> Obviously, the GRE encapsulation happens at some place 
> in the system where policy-routing doesn't have any 
> impact. 
> Other locally generated packets are policy-routed fine, 
> that that it should work in principle - but not the 
> GRE packets, although they have a source address that 
> should be subject to policy-routing when leaving the 
> system.
> So, there's probably no other way than host-routing 
> the Tunnel destionations via the appropriate gateway, 
> as some people suggested...
> Alex.
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