Hallo,
I am currently trying to configure IPv6 on my Proxmox Server hosted at OVH. I already configured IPv4 as routed setup and it is working. However, I am unabe to configure IPv6 for the VMs.
Subnet:
2001:41d0:2:xxxx::/64
Gateway at OVH:
2001:41d0:2:xxff:ff:ff:ff:ff
I replaced parts of the IP-Addresses with "x".
I am trying to configure IPv6 similar to IPv4. Therefore, the VMs are connected to the Interface vmbr0 at the Host. This interfaces (its IP) is then configured as the Gateway on the VMs. Therefore, the setup should work without proxy_ndp but I also tryed it with and was unable to make it working.
Currently, the host is accessible via IPv6. The VM is able to ping ping the interface vmbr0 via IPv6 und vice versa. The VM is inaccessible via IPv6 from the internet, and unable to access the internet via IPv6. The VM cannot access (ping) the Gateway at OVH (2001:41d0:2:xxff:ff:ff:ff:ff).
Host:
The Post-up and post-down commands are neccessairy because the gateway is outside of the subnet. This is decribed in the documentation at OVH.
https://docs.ovh.com/gb/en/dedicated/network-ipv6/
Routingtable of the Hosts:
vss-3-6k.fr.eu is the gateway of OVH:
Host output of sysctl -p:
VM:
I would really appreciate if anybody can help me solve this!
I already posted the same in german in this Forum, but since I didn't received a response within more than a week I thought it would be okay to post the same in English.
I am currently trying to configure IPv6 on my Proxmox Server hosted at OVH. I already configured IPv4 as routed setup and it is working. However, I am unabe to configure IPv6 for the VMs.
Subnet:
2001:41d0:2:xxxx::/64
Gateway at OVH:
2001:41d0:2:xxff:ff:ff:ff:ff
I replaced parts of the IP-Addresses with "x".
I am trying to configure IPv6 similar to IPv4. Therefore, the VMs are connected to the Interface vmbr0 at the Host. This interfaces (its IP) is then configured as the Gateway on the VMs. Therefore, the setup should work without proxy_ndp but I also tryed it with and was unable to make it working.
Currently, the host is accessible via IPv6. The VM is able to ping ping the interface vmbr0 via IPv6 und vice versa. The VM is inaccessible via IPv6 from the internet, and unable to access the internet via IPv6. The VM cannot access (ping) the Gateway at OVH (2001:41d0:2:xxff:ff:ff:ff:ff).
Host:
Code:
auto lo
iface lo inet loopback
auto eno1
iface eno1 inet static
address 188.x.x.54
netmask 255.255.255.0
gateway 188.x.x.254
post-up echo 1 > /proc/sys/net/ipv4/ip_forward
post-up echo 1 > /proc/sys/net/ipv4/conf/eno1/proxy_arp
auto vmbr0
iface vmbr0 inet static
address 178.x.x.249
netmask 255.255.255.248
bridge-ports none
bridge-stp off
bridge-fd 0
iface eno1 inet6 static
address 2001:41d0:2:xxxx::1
netmask 128
post-up /sbin/ip -f inet6 route add 2001:41d0:2:xxFF:FF:FF:FF:FF dev eno1
post-up /sbin/ip -f inet6 route add default via 2001:41d0:2:xxFF:FF:FF:FF:FF
pre-down /sbin/ip -f inet6 route del 2001:41d0:2:xxFF:FF:FF:FF:FF dev eno1
pre-down /sbin/ip -f inet6 route del default via 2001:41d0:2:xxFF:FF:FF:FF:FF
iface vmbr0 inet6 static
address 2001:41d0:2:9b36::2
netmask 64
up ip -6 route add 2001:41d0:2:9b36::/64 dev vmbr0The Post-up and post-down commands are neccessairy because the gateway is outside of the subnet. This is decribed in the documentation at OVH.
https://docs.ovh.com/gb/en/dedicated/network-ipv6/
Routingtable of the Hosts:
Code:
Destination Next Hop Flag Met Ref Use If
2001:41d0:2:xxxx::1/128 [::] U 256 1 0 eno1
2001:41d0:2:xxxx::/64 [::] U 256 1 0 vmbr0
2001:41d0:2:xxxx::/64 [::] U 1024 1 0 vmbr0
vss-3-6k.fr.eu/128 [::] U 1024 2 1 eno1
vss-3-6k.fr.eu/128 [::] U 1024 2 0 vmbr0
fe80::/64 [::] U 256 1 0 eno1
fe80::/64 [::] U 256 1 0 vmbr0
[::]/0 vss-3-6k.fr.eu UG 1024 9 92 eno1
[::]/0 vss-3-6k.fr.eu UG 1024 9 182 vmbr0
ip6-localhost/128 [::] Un 0 9 40 lo
2001:41d0:2:xxxx::/128 [::] Un 0 2 0 vmbr0
2001:41d0:2:xxxx::1/128 [::] Un 0 7 196 eno1
2001:41d0:2:xxxx::2/128 [::] Un 0 7 5 vmbr0
fe80::/128 [::] Un 0 2 0 eno1
fe80::/128 [::] Un 0 2 0 vmbr0
fe80::40e6:56ff:fef9:6879/128 [::] Un 0 2 0 vmbr0
fe80::4e72:b9ff:feb0:f75b/128 [::] Un 0 3 4 eno1
ip6-mcastprefix/8 [::] U 256 3 225 eno1
ip6-mcastprefix/8 [::] U 256 9 20 vmbr0
[::]/0 [::] !n -1 1 1 lovss-3-6k.fr.eu is the gateway of OVH:
Code:
nslookup 2001:41d0:2:xxff:ff:ff:ff:ff
Server: 127.0.0.1
Address: 127.0.0.1#53
Non-authoritative answer:
f.f.0.0.f.f.0.0.f.f.0.0.f.f.0.0.f.f.x.x.2.0.0.0.0.d.1.4.1.0.0.2.ip6.arpa name = vss-3-6k.fr.eu.Host output of sysctl -p:
Code:
net.ipv6.conf.all.forwarding = 1
net.ipv6.conf.default.forwarding = 1VM:
Code:
allow-hotplug ens18
iface ens18 inet static
address 178.x.x.251/29
gateway 178.x.x.249
iface ens18 inet6 static
address 2001:41d0:2:xxxx::3
netmask 64
gateway 2001:41d0:2:xxxx::2I would really appreciate if anybody can help me solve this!
I already posted the same in german in this Forum, but since I didn't received a response within more than a week I thought it would be okay to post the same in English.
Last edited:
