Great Circle Associates Firewalls
(February 1997)
 

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Subject: Optimal Throughput for NAT
From: Chris Pressley <chrisp @ tidalwave . net>
Date: Sun, 02 Feb 1997 14:07:21 -0500
To: firewalls-digest @ greatcircle . com
Reply-to: chrisp @ sitescape . com

NAT is a small part of my overall security plan. I'm looking for the
best way to implement NAT, primarily from a cost and performance
standpoint. Currently, I know of three ways to do NAT:
  1) Install and configure a firewall
  2) Dedicate a host, using software such as IPRoute    
(http://www.mischler.com/iproute/)
  3) Configure a router (e.g. Cisco with IOS 11.2 and "IP Options")

I'm looking for feedback on the following:
  1) What is my best dollar/cost solution?
  2) Are there other ways to implement NAT that I'm not aware of?

Thanks in advance for any feedback.

Chris



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