GEN007880 - The system must not send IPv6 ICMP redirects.

Information

ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages contain information from the system's route table that could reveal portions of the network topology.

Solution

Configure the system to not send IPv6 ICMP redirects.
# /usr/sbin/no -p -o ipsendredirects=0

See Also

http://iasecontent.disa.mil/stigs/zip/U_STIG_Library_2015_07.zip