Configuring Generic Routing Encapsulation(GRE)
Tunnel IP Source and Destination VRF
Membership
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Restrictions for GRE Tunnel IP Source and Destination VRF
Membership
• 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
• The VRF associated with the tunnel by using the ip vrf forwarding command is the VRF that the packets
• The feature does not support the fragmentation of multicast packets passing through a multicast tunnel.
• The feature does not support the ISIS (Intermediate System to intermediate system) protocol.
Restrictions for GRE Tunnel IP Source and Destination VRF Membership, page 205
Information About GRE Tunnel IP Source and Destination VRF Membership, page 206
How to Configure GRE Tunnel IP Source and Destination VRF Membership, page 206
Configuration Example for GRE Tunnel IP Source and Destination VRF Membership, page 207
Additional References, page 208
Feature History for Generic Routing Encapsulation Tunnel IP Source and Destination VRF Membership,
page 209
interface over which the tunnel sends packets (outer IP packet routing).
are to be forwarded in as the packets exit the tunnel (inner IP packet routing).
Routing Configuration Guide, Cisco IOS XE Everest 16.6.x (Catalyst 9500 Switches)
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