Troubleshooting Ospf Over Gre/Ipip Tunnels - Avaya 2330/4134 Troubleshooting Manual

Troubleshooting security
Attributes
PFS
IPSec compression
Keepalives

Troubleshooting OSPF over GRE/IPIP tunnels

This section describes how to troubleshoot OSPF over GRE/IP-IP encapsulated tunnels. Note
that with tunnel routing, you must configure an IP address on the tunnel interface, and you
must enable routing for both the tunnel interface and the interface on which the tunnel is
configured. OSPF uses the tunnel interface name as the next hop for the routes learned over
the tunnel interface.
Procedure steps
1. To display the IP interfaces, enter:
2. To verify the OSPF enabled interfaces, enter:
3. To verify the OSPF adjacencies, enter:
4. To verify OSPF LSA database to find originated and received LSAs, enter:
222 Troubleshooting
SR2330/4134
(Default values)
Disabled
Not supported
On-demand
show ip interfaces brief
show ip ospf interface brief
show ip ospf neighbor
show ip ospf database
Note that the asterisk (*) indicates self-originated LSAs.
Comments? infodev@avaya.com
Avaya VPN router
(Default values)
Enabled Disable PFS on
Avaya VPN router or
enable the
appropriate key
exchange group in
SR.
Enabled Disable on Avaya
VPN router.
Disabled If keepalives are
required, they can be
enabled on the
Avaya VPN router to
detect peer failure.
For dynamic VPN
scenarios, periodic
keepalive must be
enabled on both SR
and the Avaya VPN
router.
Action
August 2013