A network administrator configures the interface fa0/0 on the router R1 with the command ip address 172.16.1.254 255.255.255.0. However, when the administrator issues the command show ip route, the routing table does not show the directly connected network. What is the possible cause of the problem?
The configuration needs to be saved first
The interface fa0/0 has not been activatedCorrect
The subnet mask is incorrect for the IPv4 address
No packets with a destination network of 1721610 have been sent to R1