I am wanting to move from PfSense to IPFire and am configuring a IPFire machine to swap in some morning when the rest of the house still sleeps. I have configured everything I care about with one exception - to support Animal Crossing on the Nintendo Switch I had to create what the internet called a static NAT rule (Nintendo Switch - Needs static port on its outbound NAT | Netgate Forum) and I can find nothing similar on the IPFire web interface.
It seems like other online games require the same configuration, so maybe its already there in IPFire? I have tried to search here for anything similar but if it exists my search skills could not find it. I really need to upgrade the firewall and I want to move to IPFire but if my kids’ games stop I just can’t listen to the grief.