2 questions and a request:

1. Can you ping between the 2 P2P int's? If not, a 'show frame map' would be nice.

2. If so, what is the output of a 'sh ip ospf int' cmd?

It would be useful to have:

sh run int

sh run | b router ospf

Hello,

having an IP address on the physical interface and some DLCIs used by the main interface.

You should add under the point-to-point subif the command

frame-relay interface-dlci just to be sure that the right DCLI is associated with the the point-to-point subif.

Inverse-arp can tell you than on dlci 100 you ca n reach ip address 10.x.y.z but the LMI information is not aware of subinterfaces.

OSPF uses multicast frames and the frame-relay interface-dlci defines the DCLI as the exit point for every possible type of traffic including broadcast and multicast.

have you added a network area command for the point-to-pointsubif inside the router ospf process?

In defining the point-to-point subif have you specified the point-to-point nature of it ?

example:

inteface ser3/0.100 point-to-point

If all these are defined you should be able to build an OSPF adjacency on the point-to-point subif.

Hope to help

Giuseppe