TP-LINK TL-SG5428 Podręcznik Użytkownika Pobierz pdf (Strona 77)

default Circuit ID for the Option 82, please use no ip dhcp snooping

information circuit-id command.

Syntax

ip dhcp snooping information circuit-id string

no ip dhcp snooping information circuit-id

Parameter

string ——Enter the sub-option Circuit ID, which contains 32 characters at most.

Command Mode

Global Configuration Mode

Example

Enable and configure the customized sub-option Circuit ID for the Option 82 as

tplink:

TL-SG5428(config)# ip dhcp snooping information circuit-id tplink

ip dhcp snooping trust

Description

The ip dhcp snooping trust command is used to configure a port to be a

Trusted Port. Only the Trusted Port can receive the DHCP packets from DHCP

servers. To turn the port back to a distrusted port, please use no ip dhcp

snooping trust command.

Syntax

ip dhcp snooping trust

no ip dhcp snooping trust

Command Mode

Interface Configuration Mode (interface gigabitEthernet / interface range

gigabitEthernet)

Example

Configure port 2 to be a Trusted Port:

TL-SG5428(config)# interface gigabitEthernet 1/0/2

TL-SG5428(config-if)# ip dhcp snooping trust

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 238 239

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TP-LINK TL-SG5428 Podręcznik Użytkownika Strona 77