BGP IPv6 error

[s_serra]

Hello,

I'm using the FRR package to do BGP. The BGP IPv6 session does not come online and appears as V 4. I think this is not normal. Is it possible for FRR to have a bug with IPv6?

IPv4 Unicast Summary (VRF default):
BGP router identifier x.x.x.x, local AS number xxxxxx vrf-id 0
BGP table version 0
RIB entries 0, using 0 bytes of memory
Peers 2, using 27 KiB of memory

Neighbor           V         AS   MsgRcvd   MsgSent   TblVer  InQ OutQ  Up/Down State/PfxRcd   PfxSnt Desc
x.x.x.x      4     209533    191605       108        0    0    0 00:17:36     (Policy) (Policy) iFogV4
x:x:x::x (Isn't the IPv6 neighbor here strange?) 4     209533         0         0        0    0    0    never       Active        0 iFogV6

Total number of neighbors 2

IPv6 Unicast Summary (VRF default):
BGP router identifier x.x.x.x, local AS number xxxxxx vrf-id 0
BGP table version 1
RIB entries 1, using 192 bytes of memory
Peers 1, using 13 KiB of memory

Neighbor           V         AS   MsgRcvd   MsgSent   TblVer  InQ OutQ  Up/Down State/PfxRcd   PfxSnt Desc
x:x:x::35 4     209533         0         0        0    0    0    never       Active        0 iFogV6

Total number of neighbors 1

[stephenw10]

Was this working and then failed?

Has it ever worked with pfSense/FRR?

Has it ever worked with anything?

[s_serra]

@stephenw10

Yes, with IPv4 the BGP session is online and working. The BGP session over IPv6 never worked.

[s_serra]

BGP on the other side is working.

[s_serra]

With IPv4 I can see traffic in the GRE tunnel, with IPv6 no traffic appears.

[stephenw10]

Do you see states opened for the BGP traffic? Do you see blocked traffic in the firewall log?

[s_serra]

@stephenw10

I see BGP states with IPv4 but not with IPv6. I don't see blocked traffic in the IPv6 firewall logs for BGP. I think the FRR is not sending IPv6 packets to the network.

[stephenw10]

So you see it opening states outbound to the configured neighbour IPv4 address?

[s_serra]

@stephenw10

Yes, I see the BGP session opening sates via IPv4 but not IPv6.