[c-nsp] Dumb question

Ziv Leyes zivl at gilat.net
Thu Aug 4 04:14:32 EDT 2011


Pete, the 207.226.45.254 is the real IP for "y.y.y.y" peer, I've just forgotten to obscure it and it's seen via ISIS topology

You've got a point at the Local Policy Denied Prefixes, this is what I've get:


                                  Outbound    Inbound
  Local Policy Denied Prefixes:    --------    -------
    route-map:                            0          2
    prefix-list                      568734          0
    Total:                           568734          2

So they are indeed denied, the question is why?



-----Original Message-----
From: Peter Rathlev [mailto:peter at rathlev.dk] 
Sent: Wednesday, August 03, 2011 7:01 PM
To: Ziv Leyes
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Dumb question

Hi,

On Wed, 2011-08-03 at 18:44 +0300, Ziv Leyes wrote:
> RTR2# sh ip bgp 1.1.1.0
> BGP routing table entry for 1.1.1.0/24, version 7234660
> Paths: (1 available, no best path)
>   Not advertised to any peer
>   Local, (Received from a RR-client), (received-only)

That's a problem. For some reason the prefix was denied on RTR2 and is
thus not inserted in the RIB. Is the next-hop reachable? I.e. what does
"show ip route 207.226.45.254" say? Does "show ip bgp neighbor y.y.y.y"
say anthing interesting in the "Local Policy Denied Prefixes:" section?

> What I do find very strange is the following:
> route-map RTR1-IN, permit, sequence 10
...
> See? all the counters are zero!

The counters are only for policy routing; the will never increment by
being used for filtrering, so that's irrelevant to this.

-- 
Peter



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