Configure Port Mirroring - NETGEAR GC728X User Manual

Insight Managed 28-Port Gigabit Ethernet Smart Cloud Switch with 2 SFP 1G & 2 SFP+ 10G Fiber Ports

Configure Port Mirroring

Port mirroring selects the network traffic for analysis by a network analyzer. This is done for
specific ports of the switch. As such, many switch ports are configured as source ports and
one switch port is configured as a destination port. You can configure how traffic is mirrored
on a source port. Packets that are received on the source port, that are transmitted on a port,
or are both received and transmitted can be mirrored to the destination port.
The packet that is copied to the destination port is in the same format as the original packet
on the wire. This means that if the mirror is copying a received packet, the copied packet is
VLAN tagged or untagged as it was received on the source port. If the mirror is copying a
transmitted packet, the copied packet is VLAN tagged or untagged as it is being transmitted
on the source port.
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To globally enable port mirroring, specify the destination port, and specify one or
more source ports:
1. Connect your computer to the same network as the switch.
You can use a WiFi or wired network connection, or connect directly to a switch that is
off-network using an Ethernet cable.
2. Launch a web browser.
3. In the address field of your web browser, enter the IP address of the switch.
If you do not know the IP address of the switch, see
The login window opens.
4. Enter the switch's password in the password field.
The default password is password. If you added the switch to a network on the Insight
app before and you did not yet change the password through the local browser interface,
enter your Insight network password.
The System Information page displays.
5. Select Monitoring > Mirroring > Port Mirroring.
The Global Configuration page displays.
6. Select an Admin Mode radio button:
• True. Port mirroring is enabled.
• False. Port mirroring is enabled.
7. From the Destination Port menu, select the destination port to which port traffic must be
copied.
You can configure only one destination port on the system. The port functions as a probe
port and receives traffic from all configured source ports. If no port is configured, None is
displayed. The default is None.
Perform the following steps in the Source Interface Configuration section.
Access the Switch
Monitor the System
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on page 13.