Two different subnets on one nodes container?

[Der-Tim]

Hi there,

I'm using a /27 subnet provided by my datacentre. All three Proxmox nodes are residing within this subnet. As this subnet's full by now, they assigned me a smaller /29 subnet. I don't have enough IPs within this subnet to assign each Proxmox node one out of this. Do I have a chance to use IPs from this new subnet for containers?

Regards, Tim

 

[kotakomputer]

No problem, Proxmox works as Bridge mean you can use different subnets.

 

[Der-Tim]

But how to define the default gateway's IP address for a container, where I'd like to use the new subnet? Or do I have to use the veth-interface option in the container's configuration?

 

[udo]

But how to define the default gateway's IP address for a container, where I'd like to use the new subnet? Or do I have to use the veth-interface option in the container's configuration?

Hi Tim,
right - use the network-device (veth).
This is an bridged interface like on a kvm-VM. You simply define the ip config for the two NICs inside the OpenVZ-VM to get networking in both networks.

Udo

 

[MasterTH]

you have to use the bridged device, i think thats clear

maybe youd like o use different gateways, if this is the case you've to setup iptables with some rules to route the traffic from each subnet to each subnets-gateway