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TL-SL3428/TL-SL3452 JetStream L2 Managed Switch CLI Guide
55
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-SL3428(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 fastEthernet / interface range
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet)
Example
Configure the Fast Ethernet port 2 to be a Trusted Port:
TL-SL3428(config)#interface fastEthernet 1/0/2