GEN007920 - The system must not forward IPv6 source-routed packets.

Information

Source-routed packets allow the source of the packet to suggest routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the forwarding of source-routed traffic, such as when IPv6 forwarding is enabled and the system is functioning as a router.

Solution

Configure the system so it does not forward IPv6 source-routed packets.
# /usr/sbin/no -p -o ip6srcrouteforward=0

See Also

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