OSPF between to sites

[e-see]

I have two sites with a layer 3 switch for routing vlans and a a router to connect each site. The router for connecting the sites is managed by an outside vendor. I'm want to pass ospf between each sites layer 3 switches without having to configure the vendors routers between the wan for ospf. How can I accomplish this. Thanks

[Richard Burts]

One possibility might be to configure a GRE tunnel between the sites and run OSPF through the tunnel. That way the vendor would need to transport the GRE packets and would not see any difference whether a packet was a data packet or a routing update packet.

HTH

Rick

[wkumari]

You will need to bould some type of tunnel between the sites (accross the routers). IPSec, GRE, IP-IP, etc. Keep in mind that this will lower the effective MTU.

I have no cisco's handy so you will have to check spelling, etc, but this sould work:

int t0

tunn source

tunn dest

ip addr

end

router ospf 1

network area 0

end