- In this lesson, we're going to take a look
at several important router security principles,
including IP version 4 ACLs
and IP version 6 traffic filters.
We'll look at troubleshooting
both unicast reverse-path-forwarding
and control plane policing configurations.
We also want to look at some First-Hop Security features
specifically for IP version 6,
including IPv6 RA Guard, DHCP V6 Guard,
the IPv6 Neighbor Discovery Inspection feature,
and using IPv6 Source Guard
to verify the source of IP version 6 traffic.