The following items are displayed on this screen:

General

Enable Port Mirror: Check the box to enable the Port Mirror function. If unchecked, it will be disabled.

Mode:Select the mode for the port mirror function. Options include:

Ingress: When this mode is selected, only the incoming packets sent by the mirrored port will be copied to the mirroring port.

Egress: When this mode is selected, only the outgoing packets sent by the mirrored port will be copied to the mirroring port.

Ingress&Egress: When this mode is selected, both the incoming and outgoing packets through the mirrored port will be copied to the mirroring port.

Port Mirror

Mirroring Port: Select the Mirroring Port to which the traffic is copied. Only one port can be selected as the mirroring port.

Mirrored Port: Select the Mirrored Port from which the traffic is mirrored. One or multiple ports can be selected as the mirrored ports.

The entry in Figure 4-16indicates: The outgoing packets sent by port 1, port 2, port 3 and port 5 (mirrored ports) will be copied to port 4 (mirroring port).

Tips:

If both the mirrored port and the mirroring port are the LAN ports, these two LAN ports should be in the same Port VLAN. For example, if port 3 (the mirroring port) and port 4 (the mirrored port) are the LAN ports, the Port Mirror function can take effect only when port 3 and port 4 are in the same Port VLAN.

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TP-Link TL-R470T+ manual  General,  Port Mirror