Allied-telesis AT-S63 Manual do Utilizador descarregar pdf (Página 171)

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AT-S63 Management Software Features Guide

Section II: Advanced Operations 171

Mirroring Traffic

The Land, Teardrop, Ping of Death, and IP Options defense mechanisms

allow you to copy the examined traffic to a mirror port for further analysis

with a data sniffer or analyzer. This feature differs slightly from port

mirroring in that prior to an actual violation of a defense mechanism, only

the packets examined by a defense mechanism, rather than all packets,

are mirrored to the destination port. Should a violation occur, then all

ingress packets on the port where the violation occurred are mirrored.

As an example, activating the mirroring feature in conjunction with the

Teardrop defense on a port sends all examined ingress fragmented IP

traffic to the destination mirror port. If the switch detects a violation, all

ingress packets on the port are copied to the mirror port during the sixty

seconds that the port is blocked.

Implementing this feature requires configuring the port mirroring feature as

follows:

 Activate port mirroring.

 Specify a destination port.

 Do not specify any source ports. The source ports are defined by the

Denial of Service defense mechanism.

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