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Example
Enable and configure the customized sub-option Circuit ID for the Option 82
as “tplink” on port 1/0/1:
T1600G-52TS(config)#interface gigabitEthernet 1/0/1
T1600G-52TS(config-if)#ip dhcp snooping information circuit-id tplink
10.8 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 / interface port-channel / interface range port-channel)
Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
Example
Configure the Gigabit Ethernet port 1/0/2 to be a Trusted Port:
T1600G-52TS(config)#interface gigabitEthernet 1/0/2
T1600G-52TS(config-if)#ip dhcp snooping trust
10.9 ip dhcp snooping mac-verify
Description
The ip dhcp snooping mac-verify command is used to enable the MAC
Verify feature. To disable the MAC Verify feature, please use no ip dhcp
snooping mac-verify command. There are two fields of the DHCP packet
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