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Firewalk (computing)

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Firewalking is a technique developed by Mike Schiffman and David Goldsmith that employs traceroute-like techniques to analyze IP packet responses to determine gateway ACL filters and map networks. It is an active reconnaissance network security tool that attempts to determine what layer 4 protocols a given IP forwarding device "firewall" will pass.

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Firewalk tool, an Open Source tool that determines gateway ACL filters and map networks by analyzing IP packets responses.
WooterWoot, an Open Source set of tools that builds Checkpoint, Cisco ASA, or Netscreen policies from logfiles.

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