SMC Networks TigerAccess SMC7816M Manual do Utilizador descarregar pdf (Página 597)

100

101

ACKET

ILTERING

OMMANDS

23-9

packet filtering if enabled on any interface. This mask will be released

for use by other filtering functions if DHCP packet filtering is disabled

on all interfaces.

Example

filter dhcp

This command filters DHCP reply packets.

Syntax

filter dhcp {add | del} interface

• add - Enables DHCP reply filtering.

• del - Disables DHCP reply filtering.

•interface

- unit - Stack unit. (Range: 1)

- port-list - Single port number or list of ports. (Range: 1-18)

Default Setting

Disabled

Command Mode

Global Configuration

Command Usage

• In cases where the client address is dynamically assigned by the service

provider, but you need to ensure that the DHCP service reply is only

obtained through an authorized uplink port, you can use this

command to block DHCP replies from all unauthorized ports

(commonly specifying all data ports).

• To specify a port list, use a hyphen to indicate a range of ports, or a

comma to indicate a group of non-consecutive ports.

• This switch provides a total of 7 masks for filtering functions,

including IP-MAC address packet filtering, NetBIOS packet filtering,

DHCP packet filtering, and ACLs. One mask is allocated to DHCP

packet filtering if enabled on any interface. This mask will be released

Console(config)#filter dhcp-request add 1/1

Console(config)#

1 2 ... 592 593 594 595 596 597 598 599 600 601 602 ... 961 962

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SMC Networks TigerAccess SMC7816M Manual do Utilizador Página 597

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