A security administrator was doing a packet capture and noticed a system communicating with an
address within the 2001::/32 prefix. The network administrator confirms there is no IPv6 routing
into or out of the network. Which of the following is the BEST course of action?

A.
Investigate the network traffic and block UDP port 3544 at the firewall

B.
Remove the system from the network and disable IPv6 at the router

C.
Locate and remove the unauthorized 6to4 relay from the network

D.
Disable the switch port and block the 2001::/32 traffic at the firewall