Trouble with IPv6 and VRFs: Cannot assign requested address

[Ralf Jung]

Hi,

>> I am playing around with VRFs in our network, and I am having trouble getting
>> bird6 to establish its BGP sessions inside a VRF.  Strangely, bird for IPv4
>> works with pretty much the same configuration.
> 
> Hi
> 
> What is the output of 'birdc show interfaces'?

"birdc6", I assume?

> BIRD 1.6.4 ready.
> lo up (index=1)
> 	MultiAccess AdminUp LinkUp Loopback Ignored MTU=65536
> 	::1/128 (Primary, scope host)
> eth0 up (index=2)
> 	MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500
> 	2001:8d8:1801:56::1/64 (Primary, scope univ)
> 	fe80::250:56ff:fe2b:60f/64 (Unselected, scope link)
> vrf_freifunk DOWN (index=3)
> 	MultiAccess AdminUp LinkUp MTU=65536
> saarBR up (index=4 master=vrf_freifunk)
> 	MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1280
> 	2a03:2260:3009::2/48 (Primary, scope univ)
> 	fd4e:f2d7:88d2:ffff::2/64 (Unselected, scope site)
> 	fe80::ecee:eeff:feee:1/64 (Unselected, scope link)
> dummy0 DOWN (index=5)
> 	MultiAccess Broadcast Multicast AdminDown LinkDown MTU=1500
> saarBR-mtu DOWN (index=6 master=saarBR)
> 	MultiAccess Broadcast Multicast AdminDown LinkDown MTU=1280
> saarBAT up (index=8 master=saarBR)
> 	MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1374
> 	fe80::c0c3:b0ff:fe2c:961e/64 (Primary, scope link)
> gre0 DOWN (index=9)
> 	MultiAccess AdminDown LinkDown MTU=1476
> gretap0 DOWN (index=10)
> 	MultiAccess Broadcast Multicast AdminDown LinkDown MTU=1462
> erspan0 DOWN (index=11)
> 	MultiAccess Broadcast Multicast AdminDown LinkDown MTU=1450
> tun-up-a_ak up (index=12 master=vrf_freifunk)
> 	PtP Multicast AdminUp LinkUp MTU=1280
> 	2a03:2260:0:194::2/64 (Primary, scope univ)
> 	fe80::200:5efe:52a5:a2ef/64 (Unselected, scope link)
> tun-up-b_ak up (index=13 master=vrf_freifunk)
> 	PtP Multicast AdminUp LinkUp MTU=1280
> 	2a03:2260:0:195::2/64 (Primary, scope univ)
> 	fe80::200:5efe:52a5:a2ef/64 (Unselected, scope link)
> tun-up-a_ix up (index=14 master=vrf_freifunk)
> 	PtP Multicast AdminUp LinkUp MTU=1280
> 	2a03:2260:0:196::2/64 (Primary, scope univ)
> 	fe80::200:5efe:52a5:a2ef/64 (Unselected, scope link)
> tun-up-b_ix up (index=15 master=vrf_freifunk)
> 	PtP Multicast AdminUp LinkUp MTU=1280
> 	2a03:2260:0:197::2/64 (Primary, scope univ)
> 	fe80::200:5efe:52a5:a2ef/64 (Unselected, scope link)
> tun-up-a_fra up (index=16 master=vrf_freifunk)
> 	PtP Multicast AdminUp LinkUp MTU=1280
> 	2a03:2260:0:1e9::2/64 (Primary, scope univ)
> 	fe80::200:5efe:52a5:a2ef/64 (Unselected, scope link)
> tun-up-b_fra up (index=17 master=vrf_freifunk)
> 	PtP Multicast AdminUp LinkUp MTU=1280
> 	2a03:2260:0:1ea::2/64 (Primary, scope univ)
> 	fe80::200:5efe:52a5:a2ef/64 (Unselected, scope link)
> ffrl_lo up (index=18 master=vrf_freifunk)
> 	MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1500
> 	fe80::4086:b9ff:fe3e:1efc/64 (Primary, scope link)
> tun-peer-gw2 up (index=19 master=saarBAT)
> 	MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1406
> 	fe80::4c25:5dff:fe9d:b3d3/64 (Primary, scope link)
> tun-peer-gw3 up (index=20 master=saarBAT)
> 	MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1406
> 	fe80::905d:9aff:fefa:a748/64 (Primary, scope link)
> tun-peer-gw4 up (index=21 master=saarBAT)
> 	MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1406
> 	fe80::d408:ebff:fed8:a66c/64 (Primary, scope link)
> tun-peer-mgmt up (index=22 master=saarBAT)
> 	MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1406
> 	fe80::642d:31ff:fe73:74f8/64 (Primary, scope link)
> saarFASTD up (index=23 master=saarVPN)
> 	MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1406
> 	fe80::248f:27ff:fe14:a639/64 (Primary, scope link)
> l2tp100-100 up (index=27 master=saarVPN)
> 	MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1406
> 	fe80::c03c:daff:fe95:6092/64 (Primary, scope link)
> saarVPN up (index=7 master=saarBAT)
> 	MultiAccess Broadcast Multicast AdminUp LinkUp MTU=1406
> 	fe80::c8fe:baff:febe:1/64 (Primary, scope link)

; Ralf