Rogue IPv6 Router Advertisements: How One Device Can Redirect Your Network

Could one unauthorized device mislead IPv6 clients on a local network? This video explains how IPv6 Router Advertisements (RAs) help devices discover routers and network prefixes—and how a rogue or misconfigured RA may disrupt connectivity or redirect traffic. Learn how RA Guard helps control which switch ports can send Router Advertisements, why implementation details matter, and how DHCPv6 Guard can add protection when DHCPv6 is in use. We’ll also cover practical steps to inventory IPv6 routers, review switch policies, check logs, and test client connectivity. Topics covered: IPv6 security, Router Advertisements, Neighbor Discovery, rogue RA, RA Guard, DHCPv6 Guard, First-Hop Security, IPv6 network troubleshooting. References: RFC 4861, RFC 6104, RFC 6105, and RFC 7113. #ipv6 #networksecurity #cybersecurity #RAGuard #PacketClinic #ccna