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Forward iBGP VPNv4 routes from PE to VRF of CE

lukassgg
Beginner
Beginner

Good Morning, 

We're having troubles redistributing routes learned over iBGP VPNv4 from a PE to the VRF Customer1 of a connected CE.

The PE (XR3) receives the IPv4 route 10.2.0.0/24 over iBGP VPNv4 from the RR (2011::1):

OS is Cisco IOS XR.

RP/0/RP0/CPU0:XR3#show bgp vpnv4 unicast neighbors 2011::1 routes
Fri Dec 2 08:27:45.456 UTC
BGP router identifier 3.3.3.3, local AS number 65000
BGP generic scan interval 60 secs
Non-stop routing is enabled
BGP table state: Active
Table ID: 0x0 RD version: 0
BGP main routing table version 7321
BGP NSR Initial initsync version 2 (Reached)
BGP NSR/ISSU Sync-Group versions 0/0
BGP scan interval 60 secs
Status codes: s suppressed, d damped, h history, * valid, > best
i - internal, r RIB-failure, S stale, N Nexthop-discard
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 1:1 (default for vrf Customer1)
*>i10.2.0.0/24 2015::1 100 0 64700 i
Processed 1 prefixes, 1 paths

But the PE (XR3) doesn't forward this route 10.2.0.0/24 to the VRF Customer1 of the, over eBGP connected, CE (10.36.0.2):

RP/0/RP0/CPU0:XR3#show bgp vrf Customer1 ipv4 unicast neighbors 10.36.0.2 advertised-routes
Fri Dec 2 08:31:35.239 UTC
RP/0/RP0/CPU0:XR3#

We're running dualstack (IPv4, IPv6) and the PE receives the IPv6 route fd00:a::/112 from our RR.

RP/0/RP0/CPU0:XR3#show bgp vpnv6 unicast neighbors 2011::1 routes
Fri Dec 2 08:55:51.047 UTC
BGP router identifier 3.3.3.3, local AS number 65000
BGP generic scan interval 60 secs
Non-stop routing is enabled
BGP table state: Active
Table ID: 0x0 RD version: 0
BGP main routing table version 56
BGP NSR Initial initsync version 1 (Reached)
BGP NSR/ISSU Sync-Group versions 0/0
BGP scan interval 60 secs
Status codes: s suppressed, d damped, h history, * valid, > best
i - internal, r RIB-failure, S stale, N Nexthop-discard
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 1:1 (default for vrf Customer1)
*>ifd00:a::/112 2015::1 100 0 64700 i
Processed 1 prefixes, 1 paths

And also forwards this IPv6 route fd00:a::/112 to to VRF for our CE.

RP/0/RP0/CPU0:XR3#show bgp vrf Customer1 ipv6 unicast neighbors 2001:db8:36::6 advertised-routes
Fri Dec 2 08:57:15.310 UTC
Network Next Hop From AS Path
Route Distinguisher: 1:1 (default for vrf Customer1)
fd00:a::/112 2001:db8:36::3 2011::1 65000 64700i
Processed 1 prefixes, 1 paths

So I'm assuming we're probably missing something in the BGP IPv4 unicast settings of our PE (XR3), that doesn't forward the route 10.2.0.0/24 to our VRF Customer1 of the CE. 

This is our PE (XR3) BGP configuration:

RP/0/RP0/CPU0:XR3#show run | begin bgp
Fri Dec 2 08:39:03.632 UTC
Building configuration...
router bgp 65000
bgp router-id 3.3.3.3
address-family ipv4 unicast
!
address-family vpnv4 unicast
!
address-family ipv6 unicast
!
address-family vpnv6 unicast
segment-routing srv6
locator MAIN
!
neighbor 2011::1 (This is the Route Reflector)
remote-as 65000
update-source Loopback0
address-family vpnv4 unicast
!
address-family vpnv6 unicast
!
vrf Customer1
rd 1:1
address-family ipv4 unicast
!
address-family ipv6 unicast
segment-routing srv6
alloc mode per-ce
!
neighbor 10.36.0.2 (This is our CE IPv4)
remote-as 64800
update-source GigabitEthernet0/0/0/4
address-family ipv4 unicast
route-policy pass in
route-policy pass out
next-hop-self
!
neighbor 2001:db8:36::6 (This is our CE IPv6)
remote-as 64800
update-source GigabitEthernet0/0/0/4
address-family ipv6 unicast
route-policy pass in
route-policy pass out
next-hop-self




Thanks for any help in advance.

edit:

BGP IPv4 unicast- and BGP IPv6 unicast-peering is established between PE (XR3) and CE.

RP/0/RP0/CPU0:XR3#show bgp vrf Customer1 ipv4 unicast neighbors brief
Fri Dec 2 09:13:38.275 UTC
Neighbor Spk AS Description Up/Down NBRState
10.36.0.2 0 64800 1d18h Established


RP/0/RP0/CPU0:XR3#show bgp vrf Customer1 ipv6 unicast neighbors brief
Fri Dec 2 09:14:49.187 UTC
Neighbor Spk AS Description Up/Down NBRState
2001:db8:36::6 0 64800 1d18h Established

Global VRF Config on PE (XR3):

RP/0/RP0/CPU0:XR3#show run vrf
Fri Dec 2 09:21:42.584 UTC
vrf Customer1
address-family ipv4 unicast
import route-target
1:1
export route-target
1:1
address-family ipv6 unicast
import route-target
1:1
export route-target
1:1
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