What firewall to use for several web servers?

[Danbabe]

I am about to build about 5 web servers. I have the servers, switches and routers with static IP addresses and cabinets and cables.

Can anyone recommend a good firewall that does not have to act as a router as I have those. I would like to simply plug the routers into a firewall, firewall into a switch and the servers into the switch. That way the firewall does the trick but what firewall is good for several web servers?

I was looking at the Watchguard FireFox as this seems to be within my budget but i would need to check if it's rackmountable: http://www.ebuyer.com/product/112428

Any suggestions or ideas? Preferably one that can disable NAT (or not have it) but just allow traffic through specific ports only i.e. 80, 8080, 21, 3389 etc... and have a web based config gui.

Thanks for looking and any help you may be able to offer.

Dan

[cluberti]

I'm not sure what your budget is, but what kind of firewalling do you want to do? Do you need inspection of the packets passing through to the web servers, or are you just hoping to punch holes in certain ports on certain IP addresses and that's all you need?

If they're windows web servers, ISA 2006 is a good choice as it can do all kinds of good packet inspection and port filtering/port remapping, etc, but if you just need a device to block all but specified ports, a SonicWall or WatchGuard should be more than sufficient (and probably cheaper).