Difference between revisions of "Cisco Multi-point GRE Routing"
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ip route 2.0.0.0 255.0.0.0 tunnel0 | ip route 2.0.0.0 255.0.0.0 tunnel0 | ||
| − | You can then have routes to that site via the remote tunnel ip | + | |
| + | You can then have routes to that site via the remote tunnel ip: | ||
| + | |||
ip route <REMOTE-SUBNET> <MASK> 2.0.0.4 | ip route <REMOTE-SUBNET> <MASK> 2.0.0.4 | ||
Latest revision as of 06:56, 7 March 2012
When you use tunel mode gre multipoint you have to use numbered ip on the tunnel interface (you can't use ip unnumbered loopback/fastEthernet etc..).
interface Tunnel0 ip address 1.0.0.1 255.255.255.0 no ip redirects ip nhrp map 1.0.0.2 TUNNEL-DESTINATION-ROUTABLE-IP ip nhrp map 1.0.0.3 TUNNEL-DESTINATION-ROUTABLE-IP ip nhrp map 2.0.0.4 TUNNEL-DESTINATION-ROUTABLE-IP ip nhrp network-id 192 ip nhrp server-only non-caching #external ip used for tunnel source tunnel source FastEthernet0/1 tunnel mode gre multipoint tunnel key 100
If tunnel ip (1.0.0.1) and remote tunnel ip (2.0.0.4) are not in the same subnet you need a route to the remote tunnel ip via tunnel0:
ip route 2.0.0.0 255.0.0.0 tunnel0
You can then have routes to that site via the remote tunnel ip:
ip route <REMOTE-SUBNET> <MASK> 2.0.0.4