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I installed an Airport Extreme router and got a warning about "Double NAT". Why is that bad?

Fresh7 days ago
Mar 15, 20264939 views
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Problem

I've got a relatively complex home office/small office network -- I use two NAT (Network Address Translation) routers/firewalls to provide a DMZ (DeMilitarized Zone) for a cheap sacrificial web server. Basically, I don't want compromise (a.k.a. pwnage) of the web server to easily allow access to th…

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Fix for: I installed an Airport Extreme router and got a warning about "Double NAT". Why is that bad?

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I actually had an analogous error occur in my setup recently when I reconfigured it due to a gear swap. The double-NAT message is designed as a warning of a possible pathological network setup, but I think it's irrelevant, especially as you say you'…

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