Firewall Wizards mailing list archives

Re: Stateful Proxying?


From: "Marcus J. Ranum" <mjr () ranum com>
Date: Mon, 17 Mar 2003 21:59:35 -0500

Small, Jim wrote:
While talking about Firewalls and Proxies, I was asked, can you have a
"Stateful Proxy"?

Back in the early days of firewalls "stateful" was a marketing term
applied to certain low-end firewalls in order to make their prospective
customers think that they did the same kind of things proxies did.
"Stateful" implied that the firewall kept state - like a proxy. I'd say
"stateful" is a subset of what a proxy does, so, yes, proxies are
stateful.

mjr. 
---
Marcus J. Ranum                         http://www.ranum.com
Computer and Communications Security    mjr () ranum com

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