How to change the external config to work with the new router?
Hello,
I've been asked to assist a local business in transferring their broadband service to a new ISP.
They currently have a Firebox T30 with a mobile VPN configured. In the interface settings, the existing external IP is set to the public IP xxx.xxx.xxx.110, and the gateway is xxx.xxx.xxx.109.
The new ISP has provided a new router and specified the IP assigned via PPPoE, but no additional details were given.
The default IP for the new router is 192.168.1.1.
Could anyone provide guidance on the simplest way for someone with limited experience to update the external configuration to work with the new router?
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Hi @eddiebaker
The firebox is the router. Putting the ISP's router in front of the Firebox may cause issues with any VPNs or Static NAT (port forward) rules you have set up, as the ISP's router will not forward those to the Firebox.
I would suggest asking your ISP for your PPPoE credentials and setting the firewall's external interface to use PPPoE.
You can see the steps here in our help article on how to set up a PPPoE interface in the WebUI or using WatchGuard System Manager's policy manager:
(Configure an External Interface)
https://www.watchguard.com/help/docs/help-center/en-us/Content/en-US/Fireware/networksetup/ext_interface_about_c.html
It's also worth noting that the Firebox T30 has been end-of-life since June 30, 2023. This Firebox has not received any patches for discovered security vulnerabilities since June 2023. I would suggest considering replacing the T30 with a newer model that is still supported.
-James Carson
WatchGuard Customer Support