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Port mirroring issue

mbaqi0001
Level 1
Level 1

I have SG300-28 28-Port Gigabit Managed Switch, and tried to set a port mirroring to recieve packet on my laptop so I can capture them via Wireshark.

chose source port and destination port, and Type: Rx+Tx

But unfortunately Wireshark didnt capture any packet from the source port.

Any help would be greatly appreciated.

3 Replies 3

devils_advocate
Level 7
Level 7

Can you show us the CLI config specific to the Port Mirror configuration?

Either that or a screenshot of the GUI config if this is the way you did it?

Ganesh Hariharan
VIP Alumni
VIP Alumni

Hi Mbaqi0001,

Have you tried using below steps.

To enable port and VLAN mirroring:

Click Administration > Diagnostics > Port and VLAN Mirroring. The Port and VLAN Mirroring Page opens.

This page displays the following fields:

Destination Port—Port to which traffic is to be copied; the analyzer port.

Source Interface—Interface, port, or VLAN, from which traffic is sent to the analyzer port.

Type—Type of monitoring: incoming to the port, outgoing from the port, or both.

Status—Whether the interface is up or down.

Click Add to add a port or VLAN to be mirrored. The Add Port/VLAN Mirroring Page opens.

Enter the parameters:Destination Port—Select the analyzer port to where packets are copied. A network analyzer, such as a PC running Wireshark, is connected to this port. A port identified as a analyzer destination port, it remains the analyzer destination port until all the entries are removed.

Source Interface—Select Port or VLAN as the source port or source VLAN from where traffic is to be mirrored.

Type—Select whether incoming, outgoing, or both types of traffic are mirrored to the analyzer port. If Port is selected, the options are:

Rx Only—Port mirroring on incoming packets.

Tx Only—Port mirroring on outgoing packets.

Tx and Rx—Port mirroring on both incoming and outgoing packets.

Click Apply. Port mirroring is added, and the switch is updated.

Hope it Helps..

-GI

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mbaqi0001
Level 1
Level 1

Thank you so much all for your help.

hi devils_advocate, I was using the same method which Ganesh Hariharan talked about it.

It seems needed to upgrade the firmware.

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