Cisco CRS Configuration Manual page 274

Configuring L3VPN over GRE
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)#update-source Loopback0
Allows sessions to use the primary IP address from a specific interface as the local address when forming a session with
a neighbor.
Step 17
address-family { vpnv4 | vpnv6 } unicast
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)# address-family vpnv4 unicast
Enters address family configuration submode for the specified address family.
Step 18 route-policy route-policy-name in
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr-af)#route-policy pass-all in
Defines a route policy and enters route policy configuration mode.
Step 19 route-policy route-policy-name out
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr-af)#route-policy pass-all out
Defines a route policy and enters route policy configuration mode.
Step 20 vrf vrf-name
Example:
RP/0/RP0/CPU0:router(config)# vrf vpn1
Configures a VRF instance.
Step 21 rd { as-number:nn | ip-address:nn | auto }
Example:
RP/0/RP0/CPU0:router(config-vrf)#rd 1:1
Configures the route distinguisher.
Step 22 address-family { ipv4 | ipv6 } unicast
Example:
RP/0/RP0/CPU0:router(config-vrf)# address-family ipv4 unicast
Specifies either the IPv4 or IPv6 address family and enters address family configuration submode.
Step 23 redistribute connected [ metric metric-value ] [ route-policy route-policy-name ]
Example:
RP/0/RP0/CPU0:router(config-vrf-af)#
redistribute connected
Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco CRS Router, Release 6.1.x
260
Implementing MPLS Layer 3 VPNs