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On Dec 4, 2023, at 3:26=E2=80=AFAM, Benoit Chesneau &= lt;benoitc@enki-multimedia.eu> wrote:

Is IPv6 underlay fully supported with FreebBSD ? I have creat= ed the a tunnel and associated an Ipv6 address to each side. I'm able to pin= g between each devicesl. But when I want to curl from the remote side = it timeout. Locally on the remote side it is OK. Is this expected ? Should I= rather create a bridge with vxlan as a member and bind nginx to it ?
<= /div>

I think you=E2=80=99ve answered your o= wn question and demonstrated that it works as expected. Pinging the inside a= ddress would not work at all if the tunnel and outer transport weren=E2=80=99= t working.

As to why your curl test doesn=E2=80=99t= work, we=E2=80=99d need more information. Make sure that nginx is in fact l= istening on the vxlan IP and is not being blocked by a firewall. You may als= o want to do a packet capture of the inside interfaces to see what is and is= n=E2=80=99t going through.

```
$ ifconfig vxlan0 create vxlanid 108 vxlanlocal AAAA:BBB= B:110b:102::100 vxlanremote AAAA:BBBB:11= 0b:102::12
$ ifconfig vxlan0
vxlan0: f= lags=3D1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric= 0 mtu 1430
options=3D80020<JUMBO_MTU,LINKST= ATE>
ether 58:9c:fc:10:ff:eb
groups: vxlan
vxlan vni 108 local [AAAA:B= BBB:102::100]:4789 remote [AAAA:BBBB:110= b:102::12]:4789
media: Ethernet autoselect (autosel= ect <full-duplex>)
status: active
nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>= ;
$ ifconfig vxlan0 inet6 AAAA:BBBB:110b:300::1/64
````

```
ifconfig vxlan0
vxlan0: f= lags=3D1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric= 0 mtu 1430
options=3D680323<RXCSUM,TXCSUM,J= UMBO_MTU,TSO4,TSO6,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
ether 58:9c:fc:10:df:1f
inet6 fe80:= :5a9c:fcff:fe10:df1f%vxlan0 prefixlen 64 scopeid 0xf
= inet6 AAAA:BBBB:110b:300::2 pre= fixlen 64
groups: vxlan
vxlan vni 108 local [AAAA:BBBB1= 10b:102::12]:4789 remote [AAAA:BBBB:110b= :102::100]:4789
media: Ethernet autoselect (autosel= ect <full-duplex>)
status: active
nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
$ p= ing6 AAAA:BBBB:110b:300::1
PING6(56=3D40+8+8 bytes) AAAA:BBBB:110b:300::2 --> AAAA:BBBB::110b:300::1
16 bytes fro= m 2a0e:e701:110b:300::1, icmp_seq=3D0 hlim=3D64 time=3D0.071 ms
=
16 bytes from 2a0e:e701:110b:300::1, icmp_seq=3D1 hlim=3D64 time=3D= 0.078 ms
16 bytes from 2a0e:e701:110b:300::1, icmp_se= q=3D2 hlim=3D64 time=3D0.076 ms
16 bytes from 2a0e:e7= 01:110b:300::1, icmp_seq=3D3 hlim=3D64 time=3D0.104 ms
16 bytes from 2a0e:e701:110b:300::1, icmp_seq=3D4 hlim=3D64 time=3D0.077 m= s
^C
```

But when I run `curl -6 -v 'http://[AAAA:BBBB:11= 0b:300::1]'` it timeout.

Beno=C3=AEt Chesneau, Enki Multimedia
=E2=80=94
t. +33608655490

Sent with Proton Mail secure email.

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