Great Circle Associates Firewalls
(November 1997) 		 
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Subject: RE: Do proxies always do NAT?
From: "Kleinfelter, Susan" <SKleinfelter @ Logility . com>
Date: Fri, 21 Nov 1997 11:59:19 -0500
To: "'firewalls @ greatcircle . com'" <firewalls @ greatcircle . com>
Cc: "'Guido Stepken'" <stepken @ edina . xnc . com>


    > Am I right in thinking that an application proxy on a firewall will
    > *always* involve address translation?  Some firewalls have 'generic'

    Guido Stepken[SMTP:stepken @ edina . xnc . com] replied:

    PROXY does always adress translation and not NAT (o<i) , but
    masquerading (1<=i)

I didn't know there were different types of address translation - can someone explain the difference between NAT and masquerading?  (Sorry, I don't understand o<i vs. 1<=i -- I need a bit more detail?)


Thanks again.

Susan Kleinfelter
Logility Inc.
skleinfelter @ logility . com
All opinions expressed are mine, not my employer's.

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