AIX must not respond to ICMPv6 echo requests sent to a broadcast address.

Responding to broadcast ICMP echo requests facilitates network mapping and provides a vector for amplification attacks.

From the command prompt, run the following command: # /usr/sbin/no -o bcastping bcastping = 0

If the value returned is not "0", this is a finding.

Configure the system to not respond to IPv6 multicast ICMP ECHO_REQUESTs by running: # /usr/sbin/no -p -o bcastping=0