Router – Two companies one Internet connection, Passthrough Public IP

ipnetworkingrouterwatchguard

My client is the tenant who will be sharing Internet from the other tenant. The other tenant has a WatchGuard in place. I am not familiar with WatchGuard or their interface. The IT guy I am working with is struggling with the setup so I am trying to gather information to assist him.

Our Internet has 5 public IPs and we want my client to have one of them. So I need an IP passed through the WatchGuard to my routers WAN port. I believe the WatchGuard is an XTM 5 series…I don't have access to the interface or it physically.

Can anybody give some details of what we should be looking for in the interface to accomplish this?

Best Answer

If it's a cable modem, the easiest thing is going to be to skip the Watchguard and plug your client's cable into the back of the modem. Turn off any 'features' on the modem like packet inspection or firewalls as they just make things break.

If you can't do that, look for Proxy ARP, IP Forwarding, and Bridging features on the Watchguard (not sure if they're exposed, but the underlying linux can handle it).

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