Cisco CRS Configuration Manual page 265

Implementing MPLS Layer 3 VPNs
Example:
RP/0/RP0/CPU0:router# configure
Enters the Global Configuration mode.
Step 2 interface tunnel-ip number
Example:
RP/0/RP0/CPU0:router(config)# interface tunnel-ip 4000
Enters tunnel interface configuration mode.
• number is the number associated with the tunnel interface.
Step 3
ipv4 address ipv4-address subnet-mask
Example:
RP/0/RP0/CPU0:router(config-if)# ipv4 address 10.1.1.1 255.255.255.0
Specifies the IPv4 address and subnet mask for the interface.
• ipv4-address specifies the IP address of the interface.
• subnet-mask specifies the subnet mask of the interface.
Step 4 ipv6 address ipv6-prefix/prefix-length
Example:
RP/0/RP0/CPU0:router(config-if)# ipv6 address 100:1:1:1::1/64
Specifies an IPv6 network assigned to the interface.
Step 5 tunnel mode gre ipv4
Example:
RP/0/RP0/CPU0:router(config-if)# tunnel mode gre ipv4
Sets the encapsulation mode of the tunnel interface to GRE.
Step 6
tunnel source type path-id
Example:
RP/0/RP0/CPU0:router(config-if)# tunnel source TenGigE0/2/0/1
Specifies the source of the tunnel interface.
Step 7 tunnel destination ip-address
Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco CRS Router, Release 6.1.x
Configuring L3VPN over GRE
251