[fw-wiz] Strange NAT entries on the PIX
From: user (firstname.lastname@example.org)
From: user <email@example.com> To: firstname.lastname@example.org Date: Mon, 07 Apr 2003 16:00:24 -0700
Sorry about the HTML mail attempt. They won't let me turn off automatic
HTML on our server. I think this client will avoid the problem.
While researching a NAT pool exhaustion problem, I came across a number
of strange NAT pairs. Essentially, addresses in the global pool are
turning up on the local side, mapped to a different address in the
They are usually paired to the next address in sequence, but there are a
Global x.x.25.180 Local x.x.25.179
Global x.x.25.181 Local x.x.25.180
Global x.x.25.182 Local x.x.25.181
etc. for a block of 10-20 addresses.
I'm trying to get my head around what kind of protocol might be
generating this pattern. I suspect it's a peer-peer file transfer
pattern, since it seems to be primarily in our dorms network.
Any clues would be appreciated.
The Evergreen State College
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