FreeBSD IPv6 DoS

It's possible to set low current hope limit via Neighbor Discover Protocol...

FreeBSD -- Denial of Service with IPv6 Router Advertisements

Problem Description: The Neighbor Discover Protocol allows a local router to advertise a suggested Current Hop Limit value of a link, which will replace Current Hop Limit on an interface connected to the link on the FreeBSD system. Impact: When the Current Hop Limit similar to IPv4's TTL is small...