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Firewalking is a technique developed by Mike Schiffman and David Goldsmith that utilizes traceroute techniques and TTL values to analyze IP packet responses in order to determine gateway ACL (Access Control List) filters and map networks. It is an active reconnaissance network security analysis technique that attempts to determine which layer 4 protocols a specific firewall will allow. Firewalk is a software tool that performs Firewalking. To protect a firewall / gateway against firewalking one can block ICMP Time Exceeded messages.〔Rahul Kokcha〕 == See also == * Access Control List * Firewall (computing) * Traceroute 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Firewalk (computing)」の詳細全文を読む スポンサード リンク
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