Cisco IOS Wide-Area Networking Configuration Guide - Free Books

Frame Relay Configuration ExamplesConfiguring Frame Relayinterface serial 2no ip addressencapsulation frame-relayframe-relay intf-type dceframe-relay route 201 interface serial 1 102frame-relay route 203 interface serial 3 302!interface serial 3ip address 131.108.111.231encapsulation frame-relayframe-relay lmi-type ansiframe-relay route 301 interface serial 1 103frame-relay route 302 interface serial 1 203frame-relay map ip 131.108.111.4 400 broadcastSwitching over an IP Tunnel ExampleYou can achieve switching over an IP tunnel by creating a point-to-point tunnel across the internetworkover which PVC switching can take place, as shown in Figure 34.Note Static routes cannot be configured over tunnel interfaces on the Cisco 800 series, 1600 series, and 1700series platforms. Static routes can only be configured over tunnel interfaces on platforms that have theEnterprise feature set.Figure 34Frame Relay Switch over IP TunnelRouter AS1DTEE0200100IPnetworkRouter DS0200S1300DCEFrame RelaynetworkDTEDTERouter BRouter C62864The following example shows two routers configured to switch Frame Relay PVCs over a point-to-pointIP tunnel, which is the IP network configuration depicted in Figure 34.Configuration for Router Aframe-relay switching!interface ethernet0ip address 108.131.123.231 255.255.255.0!interface ethernet1ip address 131.108.5.231 255.255.255.0!64