OVH network issue (Scale range) forward IPv6 block to virtual machines

NoSum

New Member
May 15, 2021
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It looks like OVH new Scale range does networking differently. To get the IPv4 block I have added

Code:
post-up ip route add IPBLOCK/27 dev vmbr0
        post-up echo 1 >/proc/sys/net/ipv4/ip_forward

and then used the Gateway 100.64.0.1 rather than the standard node IP (replacing D class field with .254)

What is the equivalent of this but for the IPv6 block that has been assigned to me? Below is full network config. The IPv6 is pinging but only on the node I can't get it working inside VMs through vmbr0

Code:
auto lo
iface lo inet loopback


auto enp193s0f0
iface enp193s0f0 inet manual


auto enp133s0f0
iface enp133s0f0 inet manual


auto enp133s0f1
iface enp133s0f1 inet manual


auto enp193s0f1
iface enp193s0f1 inet manual


iface enp9s0f3u2u2c2 inet manual


auto bond0
iface bond0 inet manual
        bond-slaves enp193s0f0 enp193s0f1
        bond-miimon 100
        bond-mode 802.3ad
        bond-xmit-hash-policy layer2+3


#VLAN
auto bond1
iface bond1 inet static
        address 192.168.0.120/16
        bond-slaves enp133s0f0 enp133s0f1
        bond-miimon 100
        bond-mode 802.3ad
        bond-xmit-hash-policy layer2+3


#PUBLIC NODE IP
auto vmbr0
iface vmbr0 inet static
        address IPV4/32
        gateway 51.195.234.254
        bridge-ports bond0
        bridge-stp off
        bridge-fd 0
        post-up ip route add IPBLOCK/27 dev vmbr0
        post-up echo 1 >/proc/sys/net/ipv4/ip_forward


iface vmbr0 inet6 static
        address 2001:41d0:802:3f00::/56
        gateway fe80::1
 
It looks like OVH new Scale range does networking differently. To get the IPv4 block I have added

Code:
post-up ip route add IPBLOCK/27 dev vmbr0
        post-up echo 1 >/proc/sys/net/ipv4/ip_forward

and then used the Gateway 100.64.0.1 rather than the standard node IP (replacing D class field with .254)

What is the equivalent of this but for the IPv6 block that has been assigned to me? Below is full network config. The IPv6 is pinging but only on the node I can't get it working inside VMs through vmbr0

Code:
auto lo
iface lo inet loopback


auto enp193s0f0
iface enp193s0f0 inet manual


auto enp133s0f0
iface enp133s0f0 inet manual


auto enp133s0f1
iface enp133s0f1 inet manual


auto enp193s0f1
iface enp193s0f1 inet manual


iface enp9s0f3u2u2c2 inet manual


auto bond0
iface bond0 inet manual
        bond-slaves enp193s0f0 enp193s0f1
        bond-miimon 100
        bond-mode 802.3ad
        bond-xmit-hash-policy layer2+3


#VLAN
auto bond1
iface bond1 inet static
        address 192.168.0.120/16
        bond-slaves enp133s0f0 enp133s0f1
        bond-miimon 100
        bond-mode 802.3ad
        bond-xmit-hash-policy layer2+3


#PUBLIC NODE IP
auto vmbr0
iface vmbr0 inet static
        address IPV4/32
        gateway 51.195.234.254
        bridge-ports bond0
        bridge-stp off
        bridge-fd 0
        post-up ip route add IPBLOCK/27 dev vmbr0
        post-up echo 1 >/proc/sys/net/ipv4/ip_forward


iface vmbr0 inet6 static
        address 2001:41d0:802:3f00::/56
        gateway fe80::1
Did you manage to get IPv6 working in your VMs? I'm having the same problem as you.
 

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