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Chapter 27
IP Tunneling
Restrictions for GRE Tunnel IP Source and Destination
VRF Membership
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How to Configure GRE Tunnel IP Source and Destination
VRF Membership
To configure GRE Tunnel IP Source and Destination VRF Membership on the Cisco 10000 series router,
perform the following configuration tasks:
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Configuring Tunnel VRF
The tunnel vrf command enables the Tunnel VRF feature by identifying the VRF in which the tunnel
destination terminates. When configuring this feature, enter the tunnel destination command followed
by the tunnel vrf command as shown in the following Summary Steps.
Use the following procedure to configure tunnel VRF on the router:
SUMMARY STEPS
1.
2.
3.
4.
5.
6.
7.
8.
For more detailed information, see the Generic Routing Encapsulation Tunnel IP Source and Destination
VRF Membership feature module, located at the following URL:
http://www.cisco.com/en/US/products/ps6566/products_feature_guides_list.html
OL-2226-23
Both ends of the tunnel must reside within the same VRF.
The VRF associated with the tunnel vrf command is the same as the VRF associated with the
physical interface over which the tunnel sends packets (outer IP packet routing).
The VRF associated with the tunnel by using the ip vrf forwarding command is the VRF that the
packets are to be forwarded in as the packets exit the tunnel (inner IP packet routing).
Configuring Tunnel VRF, page 27-3
Configuring VRF-Aware VPDN Tunnels, page 27-4
enable
configure {terminal | memory | network}
interface tunnel number
ip vrf forwarding vrf-name
ip address ip-address subnet-mask
tunnel source (ip-address | type number)
tunnel destination ip-address {hostname | ip-address}
tunnel vrf vrf-name
Restrictions for GRE Tunnel IP Source and Destination VRF Membership
Cisco 10000 Series Router Software Configuration Guide
27-3
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Troubleshooting
