Dear all,
Consider a Frame Relay Hub and Spoke configuration.
R2
---------
interface Serial0/1/0.256 multipoint
ip address 150.50.100.2 255.255.255.224
ip rip advertise 60
no ip split-horizon
ip ospf network point-to-multipoint
frame-relay map ip 150.50.100.2 205
frame-relay map ip 150.50.100.5 205 broadcast
frame-relay map ip 150.50.100.6 206 broadcast
end
++++++++++++++++++++++++++++++++++
R5
---------
interface Serial0/1/0
ip address 150.50.100.5 255.255.255.224
encapsulation frame-relay
frame-relay map ip 150.50.100.2 502 broadcast
frame-relay map ip 150.50.100.5 502
frame-relay map ip 150.50.100.6 502 broadcast
no frame-relay inverse-arp
end
++++++++++++++++++++++++++++++++++
R6
---------
interface Serial0/1/0
ip address 150.50.100.6 255.255.255.224
encapsulation frame-relay
frame-relay map ip 150.50.100.2 602 broadcast
frame-relay map ip 150.50.100.5 602 broadcast
frame-relay map ip 150.50.100.6 602
no frame-relay inverse-arp
end
+++++++++++++++++++++++++++++++++
My question is in such situation, how can we configure OSPF.
I have try to add "ip ospf network point-to-multipoint" to all router's
interface,
and ip ospf priority 0 to R5 and R6.
The result is R2 can form neighbor with R5 and R6.
But R5 cannot form neighbor with R6
Is it okay?
Even I static configure "neighbor <R6_IP> cost x" in R5 router ospf 1,
it still not work.
I also try "ip ospf network broadcast" to all router's interface,
it still the same.
It is simply not necessary for R5 and R6 form neighbor?
Or I miss something important?
Thanks a lot
Best Regards,
Jack
