hello i explain you my problem i have two public ip address
and my red interface is connected in PPPOE and not in static so it is impossible to have the alias tab in network
the main one (false public ip for the example) 100.20.23.1 the one my provider gives me when I’m connected in pppoe
I got a new ip 100.20.23.2 that I want to dedicate to the mail server machine
so I set up a dmz and I created two firewall rules see attachment
hello i repeated myself i found the info on the forum
if the wan/RED interface is in PPPOE mode it is disabled Alias
it’s ipfire’s working if someone can confirm
Sincerely