PrepAway - Latest Free Exam Questions & Answers

What is the tool Firewalk used for?

What is the tool Firewalk used for?

PrepAway - Latest Free Exam Questions & Answers

A.
To test the IDS for proper operation

B.
To test a firewall for proper operation

C.
To determine what rules are in place for a firewall

D.
To test the webserver configuration

E.
Firewalk is a firewall auto configuration tool

Explanation:
Firewalk is an active reconnaissance network security tool that attempts to determine what layer 4 protocols a given IP forwarding device "firewall" will pass. Firewalk works by sending out TCP or UDP packets with a TTL one greater than the targeted gateway. If the gateway allows the traffic, it will forward the packets to the next hop where they will expire and elicit an ICMP_TIME_EXCEEDED message. If the gateway host does not allow the traffic, it will likely drop the packets and no response will be returned.


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