[c-nsp] Pkt forwarding query

Arie Vayner ariev at vayner.net
Sat Nov 7 01:53:33 EST 2015


Yes, ABF is what you are looking for.
Arie

On Mon, Nov 2, 2015 at 12:25 PM Hank Nussbacher <hank at efes.iucc.ac.il>
wrote:

> At 14:40 02/11/2015 -0500, Chuck Church wrote:
>
> Perhaps ABF:
>
> http://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/asr9k_r3-9-1/general/release/notes/rlse_a9k_392.html#wp433672
>
> ipv4 access-list security-abf-acl
> 10 permit ipv4 any any nexthop 40.1.1.2
> ! where 40.1.1.2 is the tunnel interface IP
>
> interface gi 0/0/0/1
> ipv4 access-group security-abf-acl ingress
>
> would this work?
>
> -Hank
>
> >I think you can policy route based on input interface.  At least I seem to
> >remember something along those lines that you could match input interface
> >on.  At least with IOS you could do that, not sure about IOS-XR.
> >
> >Chuck
> >
> >-----Original Message-----
> >From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> Hank
> >Nussbacher
> >Sent: Monday, November 02, 2015 2:19 PM
> >To: cisco-nsp at puck.nether.net
> >Subject: [c-nsp] Pkt forwarding query
> >
> >I am looking for a simple solution on IOS-XR where each and every pkt that
> >comes out of a specific interface (Gi0/1) would be auto-fwded into tunnel0
> >(uni-directional only).  No routing decisions, no BGP lookup, no static
> >routing, no FIB, no RIB, just some sort of auto-fwd rule which would
> bypass
> >the router entirely.  Possible?
> >
> >Thanks,
> >Hank
> >
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