Specifications

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Cisco MWR 2941 Mobile Wireless Edge Router Software Configuration Guide, Release 12.2(33)MRB
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Chapter 4 Configuring the Cisco MWR 2941 Router Using the CLI
Configuration Sequence
b. Use the exit command to exit the CEM interface.
Router(config-if-cem)# exit
Router(config-if)#
Configuring GRE Tunneling
You can use GRE tunneling with CESoPSN and ATM over MPLS PWs. Follow these steps to configure
GRE tunneling on a CESoPSN, ATM over MPLS, or Ethernet over MPLS PWs.
Note For more information about configuring MPLS, see the “Configuring Multiprotocol Label Switching
(MPLS)” section on page 4-58.
Step 1 Use the following commands to create a loopback interface.
Router(config)# interface Loopback0
Router(config-if)# description Loopback for MPLS and PWE3
Router(config-if)# ip address 10.10.10.1 255.255.255.255
Router(config-if)# exit
Router(config)#
Step 2 Complete the following steps to configure a tunnel interface.
a. Create a tunnel interface.
Router(config)# interface Tunnel3
Router(config-if)#
b. Assign an IP address to the tunnel interface.
Router(config-if)# ip address 9.9.9.9 255.255.255.0
c. Use the tunnel mode command to configure the tunnel to use GRE encapsulation.
Router(config-if)# tunnel mode gre ip
d. Use the mpls ip command to enable MPLS switching.
Router(config-if)# mpls ip
e. Use the tunnel source command to specify a source address or interface for the tunnel interface.
Router(config-if)# tunnel source Vlan3
f. Use the tunnel destination command to specify the tunnel’s destination IP address.
Router(config-if)# tunnel destination 3.3.3.3
g. Exit the tunnel interface.
Router(config-if)# exit
Router(config)#
Step 3 Create a route from the loopback interface to the tunnel interface.
Note When using the ip route command to create a route to the tunnel interface, enter the name of the tunnel
interface rather than the IP address of the tunnel.
Router(config)# ip route 10.10.10.2 255.255.255.255 Tunnel3