layer7 filter?
Chuck Swiger
cswiger at mac.com
Wed Mar 17 09:23:43 PST 2004
Thomas Vogt wrote:
> Any plans to implement a OSI layer7 filter into ipfw? Or is there
> already a project for fbsd? I only know
> http://l7-filter.sourceforge.net/ but it's linux only.
The divert mechanism already present in IPFW can be used in conjuction with
application-specific proxies to perform layer-7 filtering. For example,
consider diverting outbound connections to port 80 to a Squid cache, for
example, which might also perform authentication, filtering by URL, or other
HTTP-protocol-specific stuff.
--
-Chuck
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