A NAS appliance has had a failed NIC replaced. Now the NAS appliance is no longer visible on the network. Which of the following is the MOST likely cause of the problem?

The correct answer is C. Port security on the Ethernet switch has disabled the port. As by port security switch find the changes in mac address because nic is replaced so due to security reason switch shut that port.

Network troubleshooting

Question

Options

AThe network cable connecting the NAS to the network switch is bad.
BThe network port that the appliance is connected to is assigned to the wrong VLAN.
CPort security on the Ethernet switch has disabled the port.
DFirewall needs to be updated for the new NAS device.

How the community answered

(22 responses)

A
5% (1)
B
14% (3)
C
77% (17)
D
5% (1)

Explanation

As by port security switch find the changes in mac address because nic is replaced so due to security reason switch shut that port.

Topics

#port security#MAC address#NIC replacement#VLAN

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