How to setup DMZ on Watchguard XMT 330

Question

Hi PCITech,there is nothing, that could be directly called a 'DMZ' as you find it on some low end routers.Instead you have network interfaces, that each may represent their own full blown network (if you set them up for that). By default WatchGuard allows you to select between 'trusted' and 'optional' for a new network, that you configure, but you can also select 'custom'. Later, when you write firewall rules, you can than reference 'Any-Trusted' and 'Any-Optional' in your rules. But sometimes you don't want a network to follow the rules, that you have in place for 'Any-Optional' and than you need to set that network as a 'Custom' network.If you want to make a server in one of these additional networks accessible by the outside world, you have to set up SNAT rules, that connect between an external interface IP/port and your internal...

Answer 1

Hello,
 I'm either blind or over-worked (probably both) but I can't seem to find how to setup a DMZ on the XTM 330. I need to add an Avaya IP phone system and don't want to try using SIP because the vendor said they need no NAT.
Can someone please either direct me to the correct spot in the documentation or tell me how to do it?
Thanks in advance
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