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2.2.1.3 portscan

This command can enable or disable port scan detection function and set the threshold of port

scan detection function. Port scan sends packets with different port numbers to find available

services, which respond. The router will identify it and report a warning message if the port

scanning rate in packets per second exceeds the user-defined threshold value.

Enable <0/1>

threshold<Value>

threshold -s

Syntax Description

enable Enter “Enable 1” to enable port scan detection.

Enter “Enable 0” to disable port scan detection.

value Enter the number of the threshold for port scan detection. The

range is from 0 to 65535. (default=300 packets/sec)

-s It is used for displaying the settings of current threshold.

Example

DrayTek/firewall/dos/portscan> enable 1

DrayTek/firewall/dos/portscan> threshold 200

DrayTek/firewall/dos/portscan> threshold -s

Firewall Port Scan Threshold: 200 Packets/sec

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Draytek Vigor3300 Series Manuale Utente Pagina 31