Hi all,
I'm running Proxmox on a dedicated server with a routed IPv4 and IPv6 setup from Hetzner. IPv4 is working perfectly, and I'm using multiple routed IPs through a secondary bridge. However, I'm struggling to correctly configure IPv6.
This is my current /etc/network/interfaces configuration on the Proxmox host:
IPv6 subnet info:
Routed /64 subnet from Hetzner (e.g., 2a01:4f8:xxxx:xxxx::/64)
My goal is to assign public IPv6 addresses (like 2a01:4f8:xxxx:xxxx::100) to individual guests and allow them to be reachable over the internet.
IPv6 gateway provided by Hetzner is fe80::1, reachable via the main interface.
Questions:
How should I correctly configure IPv6 routing on the Proxmox host for this kind of routed /64 setup?
How do I assign IPv6 addresses to VMs that are in vmbr1?
Should I configure IPv6 on vmbr0, vmbr1, or create a separate bridge?
Any examples or working interfaces configs would be super helpful. Thanks!
I'm running Proxmox on a dedicated server with a routed IPv4 and IPv6 setup from Hetzner. IPv4 is working perfectly, and I'm using multiple routed IPs through a secondary bridge. However, I'm struggling to correctly configure IPv6.
This is my current /etc/network/interfaces configuration on the Proxmox host:
Code:
# Loopback interfaces
auto lo
iface lo inet loopback
iface lo inet6 loopback
# Physical NIC
auto enp5s0
iface enp5s0 inet manual
# Main IPv4 address
auto vmbr0
iface vmbr0 inet static
address 78.x.x.x/32
gateway 78.x.x.1
bridge-ports enp5s0
bridge-stp off
bridge-fd 0
# Routed IPv4 subnet bridge (used for guest public IPs)
auto vmbr1
iface vmbr1 inet static
address 5.9.x.x/32
bridge_ports none
bridge_stp off
bridge_fd 0
up ip route add 5.9.x.49/32 dev vmbr1
up ip route add 5.9.x.50/32 dev vmbr1
up ip route add 5.9.x.51/32 dev vmbr1
up ip route add 5.9.x.52/32 dev vmbr1
up ip route add 5.9.x.53/32 dev vmbr1
post-up iptables -t nat -A POSTROUTING -s 5.9.x.48/29 -o vmbr0 -j SNAT --to-source 78.x.x.x
post-down iptables -t nat -D POSTROUTING -s 5.9.x.48/29 -o vmbr0 -j SNAT --to-source 78.x.x.x
# Internal NAT bridge (for private LAN)
auto vmbr2
iface vmbr2 inet static
address 192.168.100.1/24
bridge_ports none
bridge_stp off
bridge_fd 0
post-up iptables -t nat -A POSTROUTING -s 192.168.100.0/24 -o vmbr0 -j MASQUERADE
post-down iptables -t nat -D POSTROUTING -s 192.168.100.0/24 -o vmbr0 -j MASQUERADEIPv6 subnet info:
Routed /64 subnet from Hetzner (e.g., 2a01:4f8:xxxx:xxxx::/64)
My goal is to assign public IPv6 addresses (like 2a01:4f8:xxxx:xxxx::100) to individual guests and allow them to be reachable over the internet.
IPv6 gateway provided by Hetzner is fe80::1, reachable via the main interface.
Questions:
How should I correctly configure IPv6 routing on the Proxmox host for this kind of routed /64 setup?
How do I assign IPv6 addresses to VMs that are in vmbr1?
Should I configure IPv6 on vmbr0, vmbr1, or create a separate bridge?
Any examples or working interfaces configs would be super helpful. Thanks!
