Prevent attackers from probing your network for vulnerabilities
while preserving the option to perform internal reconnaissance testing.
Similar to the military definition of reconnaissance,
the network security definition of reconnaissance is when attackers attempt
to gain information about your network’s vulnerabilities by secretly
probing the network to find weaknesses. Reconnaissance activities
are often preludes to a network attack.
Protection on all zones
to defend against port scans and host
discover open ports on a network. A
port scanning tool sends client requests to a range of port numbers
on a host, with the goal of locating an active port to exploit in
an attack. Zone Protection profiles defend against TCP and UDP port
examine multiple hosts to determine if
a specific port is open and vulnerable.
You can use reconnaissance tools for legitimate purposes such
testing of network security or the strength
of a firewall. You can specify up to 20 IP addresses or netmask
address objects to exclude from Reconnaissance Protection so that
your internal IT department can conduct white hat tests to find
and fix network vulnerabilities.
You can set the action to take when reconnaissance traffic (excluding
white hat traffic) exceeds the configured threshold when you Configure Reconnaissance Protection.
Retain the default
log a few packets for analysis before blocking the reconnaissance