Software Configurable Software Firewall

I have a need for a firewall to have 2 different configs. The first config allows no communication at all, the secound would allow comm on selected ports. I need to be able to command the firewall via an appilcation that I will write to switch configurations.

Do any of you know of a firewall that has this function?

Thanks,

Robert
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rkestersAsked:
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rkestersAuthor Commented:
Forgot one thing, must run on Win2k.
0
ahoffmannCommented:
iptables

and if you're stucked to M$, AFAIK kerio can do it now
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