Volume 1 Part 1 of 6 Section 2.9
Why is it on routers 3 and 4 that broadcasts still work? I don't have a frame-relay map ip <ip> <dlci> broadcast command configured. Actually there is nothing configured on router 3 and 4's serial interfaces. So they are using LMI to find the PVC to use. I can see using the sh frame-relay map command that broadcasts are allowed i just don't understand why. I always through broadcasts were only allowed if you configured it for such. Router 3 and 4 use physical interfaces for the config and router 5 (hub) uses multipoint sub interfaces.