,:: 1/128 is the IPv6 loopback address.

What is the IEEE802.11 standard corresponding to Wi-F16?

Which of the following authentication methods does not require the user name and password?

The output information of a certain device is shown in the figure. Which of the following statements is correct? ( ) display interface G1gabitEthernet 0/0/0 G1 gabi tEthernet0/0/0 currentstate UP Line protocol current The Maximum Transmit Unit is 1000 Internet Address is 10.0.12.2/24 IP state UP Route Port Sending Frames'Format is PRTFMT ETENT 2.Hardware address is 00e0-fc22-4fff Port Mode:FORCE COPPER SpeeD.:100, Loopback:NONE Duplex:FULL, Negotiation:DISABLE Md1 AUTO Last 300 seconds input rate 24 bits/seC.0 packets/sec Last 300 seconds output rate 24 bits /seC.0 packets/seC.*

After the administrator successfully logs in to the router through Telnet, and finds that the router's interface IP address cannot be allocated, the possible reasons are ()