Last Updated on August 19, 2021 by Admin 3
John is using Firewalk to test the security of his Cisco PIX firewall. He is also utilizing a sniffer located on a subnet that resides deep inside his network. After analyzing the sniffer log files, he does not see any of the traffic produced by Firewalk. Why is that?
- Firewalk cannot pass through Cisco firewalls
- Firewalk sets all packets with a TTL of zero
- Firewalk cannot be detected by network sniffers
- Firewalk sets all packets with a TTL of one