[nsp] Help with tunnel

Voll, Scott Scott.Voll at wesd.org
Tue May 11 18:05:17 EDT 2004


I believe your problem is that you're routing to your tunnel.  Use a
real interface (ie. Your default route).

Scott

-----Original Message-----
From: james edwards [mailto:hackerwacker at cybermesa.com] 
Sent: Tuesday, May 11, 2004 2:56 PM
To: cisco-nsp at puck.nether.net
Subject: [nsp] Help with tunnel

I want to set up GRE tunnels from my NOC router to each of the colos, so
I
can number
gear that does not need a public IP out of the net 10.123.0.0/16. The 2
routers below
are not directly connected.

I am not carrying the 10.123.0.0/16 le 24 prefix in my IGP, EIGRP.
I suspect this is why they are up/down but I wanted to check on make
sure
my configs are correct, first.


NOC router:
!
interface Loopback99
 ip address 10.123.100.1 255.255.255.0
!
interface Tunnel0
 description Tunnel to sf-colo
 ip unnumbered Loopback99
 tunnel source Loopback99
 tunnel destination 10.123.3.2
 tunnel key xxxx
tunnel path-mtu-discovery

ip route 0.0.0.0 0.0.0.0 ethernet0/0
ip route 10.123.3.0 255.255.255.0 Tunnel0


Colo router:

!
interface Loopback1
 ip address 10.123.3.2 255.255.255.0
!
interface Tunnel0
 description Tunnel to NOC
 ip unnumbered Loopback1
 tunnel source Loopback1
 tunnel destination 10.123.3.2
 tunnel key xxxx
 tunnel path-mtu-discovery

ip route 0.0.0.0 0.0.0.0 serial0/1
ip route 10.123.0.0 255.255.0.0 Tunnel0

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