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Refer to the exhibit. A Full-mesh frame relay topology network with OSPF enabled and interfaces is properly configured. OSPF routes appear in the Link State database of all the routers but network does not appear in neighbor table of router R3 and network does not appear in neighbor table of router R2. What can be the source of the problem?

IP ospf network is not configured as "broadcast"

Router R1 interfaces are configured as point-to-point.

Either serial interface on routers R2 or R3 must be down.

IP addressing is not properly configured.

The DLCI 101 is in inactive state.



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