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Configuring IP Tunnels

IP tunnels provide a way of transporting datagrams between routers separated by networks that do not support all the protocols that those routers support. To configure an IP tunnel, you must first configure a tunnel-service interface. (See Configuring Tunnel Service Interfaces.)

When you have configured a tunnel-service interface, treat it in the same way as any IP interface on the router. For example, you can configure static IP routes or enable routing protocols on the tunnel interface. The IP configurations that you apply to the tunnels control how traffic travels through the network.

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