Which of the statements below are correct regarding the following commands, which are executed on a Linux router? (Choose two.)

ip6tables -A FORWARD -s fe80::/64 -j DROP
ip6tables -A FORWARD -d fe80::/64 -j DROP

A. Packets with source or destination addresses from fe80::/64 will never occur in the FORWARD chain
B. The rules disable packet forwarding because network nodes always use addresses from fe80::/64 to identify routers in their routing tables
C. ip6tables returns an error for the second command because the affected network is already part of another rule
D. Both ip6tables commands complete without an error message or warning
E. The rules suppress any automatic configuration through router advertisements or DHCPv6