Re: [fw-wiz] Stateful Proxying?

From: Marcus J. Ranum (
Date: 03/18/03

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    To: "Small, Jim" <>,
    From: "Marcus J. Ranum" <>
    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


    Marcus J. Ranum
    Computer and Communications Security
    firewall-wizards mailing list

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