Re: double NAT

From: The Psychotic Viper (
Date: 07/23/01

Date: Mon, 23 Jul 2001 02:42:53 +0200 (SAST)
From: The Psychotic Viper <>
Subject: Re: double NAT
To: Kirk Brady <>
Message-id: <>


On Fri, 20 Jul 2001, Kirk Brady wrote:

> this may be a stupid q to some but i was just wondering that if you have a router connected to the net that performs NAT, and then a firewall connected to the router that
> performs NAT as well, do all user requests that are sent then get double NAT'd or does this setup not work? once again im sorry if this seems stupid to some, but its been
> bugging me for a while and i havent found anything that tells me.

nope...the operating system allows for one gateway to be setup (least as
far as I have seen on the w/station and server OS's I have worked on) so
the request is dealt with by the gateway its set to use.

And as I recall the term "double NAT'ing" is often used to indicate two
seperate feeds to a NAT'ing gateway that operates as one via BGP. Again
its from personal experience and I could be taught otherwise. Willing to
learn, especially if my perception is wrong.:)

> thanks,
> kirk brady

(And no double NAT'ing isnt a for real technical term I think)

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