In Proxmox perl code ip address for tunneling and clustering determined as an address of vmbr0 network interface. But if i want to use any interface different from vmbr0, i cant do it: my handmade changes in source code will be rewriten when upgrading Proxmox and there is no such configuration option: "tunneling base interface". So my question is what to do in that situation, must i use vmbr0 and only vmbr0 for the clustering needs? May i request to extend the Web-interace with this feature/option?