My provider only lets me dhcp the same address on WAN (RED)(always same address) and routes a /28 subnet via his backbone to that one address.
From the ipfire wiki I know that Aliases on RED are only possible with a static WAN addressing. In other firewalls I can use Aliases or virtual IPs on WAN/RED as well with my given net config.
How could I achieve the same or even a working config with ipfire, that I could use my static routed range? I do not yet know how to configure my networks in ipfire.