Change WAN interfaces-keep other settings

[costasppc]

Hello,

Maybe stupid one but here it is:

I need to change some WAN interfaces (2 of them) from VLAN based DHCP and static to physical NIC DHCP and static, and I need to keep the fw rules and other things related to the old interfaces.

Shall I install the NICs, set the new interfaces and edit the XML conf file?

Best regards

Kostas