Cisco IOS Wide-Area Networking Configuration Guide - Free Books

X.25 and LAPB Configuration ExamplesConfiguring X.25 and LAPBFigure 54Example Network Topology for Switching CMNS over a Leased LineHost CMAC address 0800.4e02.123f38.8261.2000.0150.0555.1212.07Serial X.25 address 00002Token Ring 0 MAC address 0000.0c00.ee01EthernetRouter C4S0T0Private X.25 networkRouter C3S1E0Serial X.25 address 00001Ethernet 0 MAC address 0000.0c00.ab01TokenRingHost BMAC address 0800.4e02.bcd038.8261.2100.0150.0688.4543.0162856A key difference for this configuration compared with the previous example is that with no PDN, thesubstitution of the destination X.121 address in the x25 route command is not necessary. Thespecification of an X.25 address also is not needed, but it is included for symmetry with the previousexample.Configuration for Router C4interface token 0cmns enable!interface serial 0encapsulation x25x25 address 4085551234!x25 route dest-ext ^38.8261.17 interface Token0 mac 0800.4e02.1f9f!! The line above specifies that any traffic from any other interface! intended for any NSAP address with NSAP prefix 38.8261.17 will be! switched to MAC address 0800.4e02.1f9f through Token Ring 0!x25 route dest-ext ^38.8261.18 interface Serial0!! The line above specifies that traffic from any other interface! on Cisco Router C2 that is intended for any NSAP address with! NSAP-prefix 38.8261.18 will be switched to! X.121 address 2095551000 through Serial 0Configuration for Router C3interface ethernet 0cmns enable!interface serial 1encapsulation x25x25 address 209555100076