LevelOne GEL-2060 Guida rapida

GEL-2060

Anti-Attack Configuration Commands

Table of Contents

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Table of Contents

Chapter 1 Anti-Attack Configuration Commands.................................................................................................................. 1

1.1 Anti-Attack Configuration Commands.................................................................................................................... 1

1.1.1 filter period time......................................................................................................................................... 1

1.1.2 filter threshold value .................................................................................................................................. 1

1.1.3 filter block-time value ................................................................................................................................ 2

1.1.4 filter igmp................................................................................................................................................... 3

1.1.5 filter arp ..................................................................................................................................................... 3

1.1.6 filter enable................................................................................................................................................ 3

1.1.7 show filter .................................................................................................................................................. 4

Anti-Attack Configuration Commands

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Chapter 1 Anti-Attack Configuration Commands

1.1 Anti-Attack Configuration Commands

1.1.1 filter period time

To configure filter period for attack, use the filter period command.

parameter

Description

time

The filter period for attack in seconds. It is considered as attack when the

attack source sends packets above the specified number in any filter

period time.

default

10 seconds

Command mode

Global configuration mode

example

Switch_config#filter period 15

Related commands

filter threshold value

1.1.2 filter threshold value

To configure the filter threshold value, use the filter thresholf value command.

parameter

Description

value

It is considered as attack when the receiving packets excddes the filter

threshold value.

Anti-Attack Configuration Commands

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default

1000

command mode

global configuration mode

example

Switch_config#filter threshold 1500

Related commands

filter period time

1.1.3 filter block-time value

To configure the time to block attack resource, use the filter block-time value

command.

parameter

description

Value

Time to block attack source in seconds.

default

300 seconds

command mode

global configuration mode

example

Switch_config#filter block-time 600

Related commands

filter period time

filter threshold value

Anti-Attack Configuration Commands

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1.1.4 filter igmp

To filter IGMP attack, use the filter igmp command.

parameter

none

Command mode

Global configuration mode

example

Switch_config#filter igmp

Related commands

filter enable

1.1.5 filter arp

To fliter ARP attack, use the filter arp command.

parameter

none

Command mode

physical interface configuration mode

example

Switch_config_f0/1#filter arp

Related commands

filter enable

1.1.6 filter enable

To enable filter feature, use the filter enable command.

Anti-Attack Configuration Commands

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parameter

none

Command mode

Global configuration mode

example

Switch_config#filter enable

Related commands

filter igmp

filter arp

1.1.7 show filter

To display working state of the anti-attack feature of the current switch, use the show

filter command.

parameter

none

command mode

non-user mode

Switch#show fil

Filter threshold: 1000 packet in any 10 seconds

Filters blocked:

Address seconds source interface

00a0.0c13.647d 27.0 FastEthernet1/2

Filters counting:

Address seconds count source interface

00a0.0c43.647d 1.84 371 FastEthernet1/2

Filters blocked: indicates MAC address of the blocked attack source, blocked time and

source interface.

Filters counting: indicates MAC address of the attack source, counting time, the

number of the receiving packets and the source interface.

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