Administrator Guide

!
ip vrf VRF_2
ip route-import 2:2
ip route-export 1:1
!
route-map rmap1 permit 10
match source-protocol connected
!
route-map map2 permit 20
match source-protocol connected
Route Leaking for Complete Routing Table
!
ip vrf VRF_1
ip route-import 1:1
ip route-export 2:2
!
ip vrf VRF_2
ip route-import 2:2
ip route-export 1:1
Route Leaking for Selective Routes
!
ip vrf VRF_1
ip route-import 1:1 map1
ip route-export 2:2 map2
!
ip vrf VRF_2
ip route-import 2:2
ip route-export 1:1
!
!
route-map map1 permit 10
match ip address ip1
!
route-map map2 permit 20
match ip address ip2
!
ip prefix-list ip1
seq 5 permit 20.0.0.0/24 <----- This is needed for data forwarding
seq 10 permit 20.0.0.2/32 <---- This is specific to internal operation of DHCP relay
!
ip prefix-list ip2
seq 5 permit 10.0.0.0/24
Non-default VRF configuration for DHCPv6 helper
address
The ipv6 helper-address command is enhanced to provide support for configuring VRF for DHCPv6 relay helper address.
To forward DHCP packets between DHCP client and server if they are from different VRFs, you should configure route leak
using route map between the VRFs. For more information on configuring route leak across VRF, see DHCP Relay when DHCP
Server and Client are in Different VRFs.
NOTE:
For DHCP relay source IPv4 or IPv6 configuration to work in non-default VRF, you must enable VPN in DHCP information
option.
● Specify the helper-address and VRF name (optional) to forward the DHCPv6 relay packets from client and server.
Dynamic Host Configuration Protocol (DHCP)
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