Refer to the exhibit. The Fa0/2 interface on switch S1 has been configured with the switchport port-security mac-address 0023.189d.6456 command and a workstation has been connected. What could be the reason that the Fa0/2 interface is shutdown?
- The connection between S1 and PC1 is via a crossover cable.
- The Fa0/24 interface of S1 is configured with the same MAC address as the Fa0/2 interface.
- S1 has been configured with a switchport port-security aging command.
- The MAC address of PC1 that connects to the Fa0/2 interface is not the configured MAC address.
Answers Explanation & Hints:
The security violation counter for Fa0/2 has been incremented (evidenced by the 1 in the SecurityViolation column). The most secure addresses allowed on port Fa0/2 is 1 and that address was manually entered. Therefore, PC1 must have a different MAC address than the one configured for port Fa0/2. Connections between end devices and the switch, as well as connections between a router and a switch, are made with a straight-through cable.