Configure IP across your Frame Relay network, as displayed in Figure C-2.
■ You have to use static maps for each protocol. No dynamic mapping is permitted.
■ No subinterfaces are allowed on any router.
■ Use the most efficient subnetwork for IP addresses on the Frame Relay cloud.
■ You can assign a subnet from your Class B range.
■ Use LMI-type Cisco only and do not rely on auto-sensing the LMI type on any routers. All router interface types are DTE. The Frame Relay port type is DCE.
■ Do not use the keyword broadcast for the Frame Relay link between R6 and R7 when mapping IP.
■ Make sure you can also ping the local interface from each router configured for Frame Relay.
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