IPv6 MPLS L3VPN (6vPE) Notes
IPv6 MPLS L3VPN (6vPE)
– with VRFs on PE routers
– VPNv6 address-family between PE – PE routers
– IPv6 address-family between PE – CE routers
RD + IPv6 = VPNv6
64 bits + 128 bits = 192 bits
VPNv6
– VRF required on PE – CE
– VPN label exchange is automatic
6vPE on IOS Routers
1. VRF creation
2. Interface association
3. VRF IGP association
4. Mutual redistribution between VRF IGP and MP-BGP
R1(config)# vrf definition ABC
rd 1:1
address-family ipv6 unicast
route-target both 1:1
int fa0/0
vrf forwarding ABC
ip add 14.0.0.1 255.0.0.0
ipv6 router ospf 1 vrf ABC
exit
int fa0/0
ipv6 ospf 1 area 0
router bgp 100
no bgp default ipv4-unicast
neighbor 3.3.3.3 remote-as 100
neighbor 3.3.3.3 update-source lo0
address-family vpnv6 unicast
neighbor 3.3.3.3 activate
address-family ipv6 vrf ABC
redistribute ospf 1
ipv6 router ospf 1
redistribute bgp 100
6vPE on XR Routers
R1(config)# vrf ABC
address-family ipv6 unicast
import route-target 1:1
export route-target 1:1
int g0/0/0/0
no ipv6 add
vrf ABC
ipv6 add <ip add>/<nm>
router bgp 100
address-family vpnv6 unicast
neighbor 3.3.3.3
remote-as 100
update-source lo0
address-family vpnv6 unicast
vrf ABC
rd 1:1
address-family ipv6 unicast
neighbor 2002:14::4
remote-as 50
address-family ipv6 unicast
route-policy PASS in
route-policy PASS out
as-override
! R1
router bgp 50
bgp router-id 1.1.1.1
address-family ipv6 unicast
network 2002:1:1:1::1/128
neighbor 2002:12::2
remote-as 100
address-family ipv6 unicast
route-policy allow-all in
route-policy allow-all out
route-policy allow-all
pass
end
! R2
router ospf 1
router-id 2.2.2.2
area 0
int lo0
int gi0/0/0/1
!
mpls ldp
router ospf 1
mpls ldp auto-config
!
vrf ABC
address-family ipv6 unicast
export route-target 1:1
import route-target 1:1
int gi0/0/0/0
no ipv4 address 9.9.12.2 255.255.255.0
no ipv6 address 2002:9:9:12::2/64
vrf ABC
ipv4 address 9.9.12.2 255.255.255.0
ipv6 address 2002:9:9:12::2/64
router bgp 100
vrf ABC
rd 1:1
!
router bgp 100
bgp router-id 9.9.0.2
address-family vpnv6 unicast
! -> needed before “address-family ipv6 unicast” can be configured inside “vrf ABC”
vrf ABC
address-family ipv6 unicast
network 2002:2:2:2::2/128
neighbor 2002:12::1
remote-as 50
address-family ipv6 unicast
route-policy allow-all in
route-policy allow-all out
as-override
route-policy allow-all
pass
end
!
router bgp 100
neighbor 3.3.3.3
remote-as 100
update-source lo0
address-family vpnv6 unicast
! R3
int lo0
ip ospf 1 area 0
int e1/0
ip ospf 1 area 0
int e1/1
ip ospf 1 area 0
router ospf 1
router-id 3.3.3.3
!
mpls label protocol ldp
mpls ldp router-id lo0 force
router ospf 1
mpls ldp autoconfig
! R4
router ospf 1
router-id 4.4.4.4
area 0
int lo0
int gi0/0/0/0
int gi0/0/0/1
!
mpls ldp
router ospf 1
mpls ldp auto-config
! R5
router ospf 1
router-id 5.5.5.5
area 0
int lo0
int gi0/0/0/1
!
mpls ldp
router ospf 1
mpls ldp auto-config
!
vrf ABC
address-family ipv6 unicast
export route-target 1:1
import route-target 1:1
int gi0/0/0/0
no ipv6 address 2002:56::5/64
vrf ABC
ipv6 address 2002:56::5/64
router bgp 100
vrf ABC
rd 1:1
!
router bgp 100
bgp router-id 5.5.5.5
address-family vpnv6 unicast
! -> needed before “address-family ipv6 unicast” can be configured inside “vrf ABC”
vrf ABC
address-family ipv6 unicast
neighbor 200256::6
remote-as 50
address-family ipv6 unicast
route-policy allow-all in
route-policy allow-all out
as-override
route-policy allow-all
pass
end
!
router bgp 100
neighbor 2.2.2.2
remote-as 100
update-source lo0
address-family vpnv6 unicast
! R6
router bgp 50
bgp router-id 6.6.6.6
no bgp default ipv4-unicast
neighbor 2002:56::5 remote-as 100
address-family ipv6
network 2002:6:6:6::6/128
neighbor 2002:56::5 activate
