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What is WIPFW?WIPFW is a MS Windows operable version of IPFW for FreeBSD OS. You can use the same functionality and configure it as only you work with IPFW.IPFW is a packet filtering and accounting system which resides in the kernelmode, and has a user-land control utility, ipfw. Together, they allow you to define and query the rules used by the kernel in its routing decisions.There are two related parts to ipfw. The firewall section performs packet filtering. There is also an IP accounting section which tracks usage of the router, based on rules similar to those used in the firewall section. This allows the administrator to monitor how much traffic the router is getting from a certain machine, or how much WWW traffic it is forwarding, for example.As a result of the way that ipfw is designed, you can use ipfw on non-router machines to perform packet filtering on incoming and outgoing connections. This is a special case of the more general use of ipfw, and the same commands and techniques should be used in this situation. Frequently Asked QuestionsQ: Whats the difference between WIPFW and IPFW?A: Now WIPFW is unable to change packets content, so it is impossible to redirect packets. Also WIPFW has no traffic shaper. In the future WIPFW will be using ndis driver which will allow all abilities.Q: What operation systems can be used to run WIPFW?A: WIPFW can run on all Windows platforms, starting with Windows 2000.Warning!Misconfiguring the firewall can put your computer in an unusable state, possibly shutting down network services and requiring console access to regain control to it.
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