Thank you for the responses.
Toshi EsumiThere was the same discussion on this forum before. I was looking for it at that time and found it by searching through the forum. This shows all of interfaces though.
# config sys int
# edit ?
The list includes IP addresses pulled via pppoe and dhcp.
Unfortunately, all of my backup WAN connections are behind NAT, there is a separate small subnet network between fgt and gsm modem :(.
Ideally, you would want your WAN devices to be configured in bridge mode, failing that if these WAN devices allow it you may be able to setup port forwarding on them to ports on the fgt.
That's exactly how it works in my case as I use mostly GSM backup so WAN2 port is connected to a gsm modem behind NAT and with port forwarding for site to site VPN and web mgmt access for specific IPs. I have to set up backup vpn tunnels and create some basic ping monitors (from the main location to public IPs). I didn't get any info about the IPs from previous admin and that's why I'm trying to find a creative and non-invasive way to get it :).
sw2090hm if you use WLLB/SDWAN you could add some connectivity check that opens some url or pings something to have the ip(s).
Well, I'm not using SDWAN, only link-monitor with update-cascade-interface & update-static-route.
So, I think that I have two options left:
1. Adding a non-responsive address to ping on main WANs link-monitor to start using backup WAN then connect to a workstation and check it
2. Creating an additional vpn tunnel including this small subnet between fgt and gsm modem so I can access the modem from the main location and check public IP
I choose the second option :)
Thanks for your suggestions!