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Hy, try it:
----- Original Message -----
Sent: Friday, January 11, 2002 3:05
PM
Subject: Re: how does outgoing nat work
exactly?
Rick,
There are a couple of ways
this can be done and it depends on how the NAT device works. NAT,
itself, is just the rewriting of the source IP address. If your NAT
device is an application layer gateway then you would have two seperate
connections. One would be between your internal device and the ALG and
the other between the ALG and the server you are connecting to. This
would more than likely result in a different source port for each connection
since all of the headers would be re-written by the ALG. If you have
some sort of IP filter, router, or loadbalancer doing NAT then the only thing
that will change in the packet will be the source address. The rest of
the headers will remain intact including the source port. The same would
probably be true of a Stateful Inspection style firewall depending on how it
was built.
Regards,
Jeffery
Gieser
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