Your company has computers in multiple locations that use IPv4 and IPv6. Each location is protected
by a firewall that performs symmetric NAT. You need to allow peer-to-peer communication between
all locations. What should you do?

A.
Configure dynamic NAT on the firewall.

B.
Configure the firewall to allow the use of Teredo.

C.
Configure a link local IPv6 address for the internal interface of the firewall.

D.
Configure a global IPv6 address for the external interface of the firewall.