Need soem help with a WatchGuard Firebox x500 and external IPs : Firebox x500 watchGuard External IP

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Need soem help with a WatchGuard Firebox x500 and external IPs

Asked by tsaico in Watchguard Firewall, TCP/IP

Tags: Firebox x500 watchGuard External IP

We have a block of external IPs that I would like to start using a second one.

Right now, the external interface has a IP issued to it by the dsl modem issued to us from ATT, and it shows up as the last available IP in our pool (of 6 if it matters). A who is lookup confirms the IP and also it stated on the status page in the Mananger. Our internal is working fine also. While we had the extra IPs, we never used any until our need now. The issue is we have an internal Exchange server that wants 443 for OWA and HTTPS, activesync, but another one of our applications requires 443 to be redirected to it.

The question is how do I get requests for the second IP in my block on the external side to forward to the correct internal IP? I see an optional interface, and it looks like I can put in a CIDR style IP, but I am not sure if my math is correct. I checked it against an online calculator but worried I might have it wrong.

examples:
IP block- x.x.x.160-x.x.x.167, with the external interface already getting x.x.x.166 through DHCP dished out by the modem. I was thinking x.x.x.160/30 to enter into the optional interface, if that would even work. Patch a cable from an available port on the modem to the Optional Interface, then redirect 80 and 443 on the optional interface to my internal server that will process these requests.

Any help? (I origionally called to see if we can renew the support for this, but found the x500 to be at it's end of life in a day.) Thanks in advance!

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Need soem help with a WatchGuard Firebox x500 and external IPs

Asked by tsaico in Watchguard Firewall, TCP/IP

Tags: Firebox x500 watchGuard External IP

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