Judge: LCP in the magic-number field can be used for loop detection.

What is the value of the Flag field in the PPP frame format?

Which message need to send when needing to terminate a PPPoE session?

As shown in the figure, there is a web server in the private network that needs to provide more HTTP services to the public network users, so the network administrator needs to be at the gateway.
Configure NAT on the router RTA to meet the requirements. The correct configuration to meet the requirements in the following configurations is ().

What is the destination port number of the DHCPv6 ADVERTISE packet sent by the DHGR/6 server?