[c-nsp] VRF & Hairpin Routing?

Collins, Richard (EXT) rich.collins at siemens.com
Thu Apr 6 15:33:58 EDT 2006


Shouldn't you change 
ip route vrf Customers 0.0.0.0 0.0.0.0 10.10.1.1 to the address on the
opposite end of the trunk?

-Rich

>Message: 9
>Date: Thu, 6 Apr 2006 15:40:46 -0300 
>From: Sean Watkins <sean at northrock.bm>
>Subject: [c-nsp] VRF & Hairpin Routing?
>To: "'cisco-nsp at puck.nether.net'" <cisco-nsp at puck.nether.net>
>Message-ID:
>       <B146219F50F53348A6EF98F14B4202C6609E81 at sumo2.northrock.bm>
>Content-Type: text/plain
>
>Hi,
>
>Is there anyway one can use a VRF to hairpin route some traffic in and
out
>of a router on fast ethernet interfaces?
>
>I have got what I believe a good config, but IOS doesn't like to see a
>packet from itself going to itself?
>
>Here is important snippits of my config
>
>
>ip vrf Customers
> rd 1:1
>!
>ip cef
>
>interface FastEthernet0/0.11
> encapsulation dot1Q 11
> ip vrf forwarding Customers
> ip address 10.10.1.2 255.255.255.0
> no snmp trap link-status
>!
>
>interface FastEthernet0/1.10
> encapsulation dot1Q 10
> ip address 10.10.1.1 255.255.255.0
> no snmp trap link-status
>!
>interface FastEthernet0/1.12
> encapsulation dot1Q 12
> ip vrf forwarding Customers
> ip address 10.12.1.1 255.255.255.0
> no snmp trap link-status
>!
>
>ip route vrf Customers 0.0.0.0 0.0.0.0 10.10.1.1
>
>
>
>Vlans 10 & 11 are connected together in an upstream switch  via a
crossover
>cable.
>
>
>I get these error messages on debug arp;
>
>
>1d00h: IP ARP: sent req src 10.10.1.1 0003.fdcb.ec06,
>                 dst 10.10.1.2 0000.0000.0000 FastEthernet0/1.10
>
>1d00h: IP ARP req filtered src 10.10.1.1 0003.fdcb.ec06, dst 10.10.1.2
>0000.0000.0000 it's our address
>
>
>
>Any ideas?
>
>
>Sean
>
>
>
>
>------------------------------
>
>



More information about the cisco-nsp mailing list