Configuring Gre Site To Site With Ipsec And Ospf; Multicast Over Gre - Avaya 1000 Series Configuration Manual

Configuring GRE

Configuring GRE Site to Site with IPSec and OSPF

This example extends the previous IPSec configuration example by enabling Open Shortest
Path First (OSPF) protocol which provides redundant paths for the tunnel.
1. To enable OSPF, add to the Secure Router configuration above:
2. Add to the Cisco-compatible configuration above:
3. To verify the OSPF configuration, enter:

Multicast over GRE

The Secure Routers now support Multicast Routing (PIM-SM) over GRE tunnels. Typically,
multicast routing protocol control traffic and multicast data traffic are sent over GRE tunnels
when there has to be a data exchange between two multicast-enabled routers that are
separated by an IP cloud that does not have multicast capabilities. In such scenarios, the ability
to configure PIM over GRE tunnels helps in transporting multicast packets (both control and
data) across a non-Multicast aware IP cloud.
182 Avaya Secure Router 1000 Series Configuration Guide
SR> show crypto ipsec policy all
Or enter:
SR> show crypto ike policy all
SR> configure terminal
Router/configure> router routerid 2.2.2.2
Router/configure> router ospf
Router/configure/router/ospf> interface t0 area 0
Router/configure/router/ospf> exit
cisco > config t
cisco(config)>router ospf 1
cisco(config-router)> network 103.1.1.0 0.0.0.255 area 0
SR> show ip ospf interface all
Note:
Using the redistribute connected command adds a recursive route to the tunnel
destination. This will cause the tunnel to shut down. To prevent this, add a 32-
bit static route for the tunnel destination.
December 2010