Hi, one of my customer had subscribed to the JIO business connection with static IP, Public IP is only available with 5k/month plans onwards.
The JIO router is getting a public static IP of 115.x.x.x, and port forwarding on the router works for that IP. But you can only forward the known service ports from the port forward menu which is a security risk + double NAT. Also somehow I think this is still behind CGNAT as the ip route to 18.104.22.168 gives all private IP ranges before it reaches destination. Still this works.
Ideally I would want one of the LAN ports to be set in bridge mode so that I can get the public IP on the FW. I tried setting port 4 to bridge and VLAN 2, did not work. Have advised him to raise a ticket, lets see how this goes.
We have just installed JIO BusinessGigabit connection with Static IP, but for some reason I am not able to get the port forwarding working, would it be possible for you to help me out by explaining the settings you configured or help me though anydesk?
Working on the issue with @hemkant we stumbled that JIO business public IP port forward works from only another JIO network from within the same city. Did not work with Hathway, Airtel or even a JIO connection from another city. Still need to figure this out.