Tp-Link T1600G-28PS (TL-SG2424P) [564/754] Follow these steps to configure option 82

Tp-Link T1600G-28PS (TL-SG2424P) [564/754] Follow these steps to configure option 82
Configuration Guide 542
Configuring Network Security DHCP Snooping Configuration
Follow these steps to configure Option 82:
Step 1 configure
Enter global configuration mode.
Step 2 interface [
fastEthernet
port |
range fastEthernet
port-list |
gigabitEthernet
port |
range
gigabitEthernet
port-list
]
Enter interface configuration mode.
Step 3 ip dhcp snooping information option
Enable the Option 82 feature on the port.
Step 4 ip dhcp snooping information strategy { keep | replace | drop }
Specify the operation for the Option 82 field of the DHCP request packets from the Host.
Three options are provided:
keep: Indicates keeping the Option 82 field of the packets.
replace: Indicates replacing the Option 82 field of the packets with one defined by switch. By
default, the Circuit ID is defined to be the VLAN and the number of the port which receives
the DHCP Request packets. The Remote ID is defined to be the MAC address of the DHCP
Snooping device which receives the DHCP Request packets.
drop: Indicates discarding the packets that include the Option 82 field.
Step 5 ip dhcp snooping information circuit-id
string
Configure the circuit ID. The circuit ID configurations of the switch and the DHCP server
should be compatible with each other.
string:
Enter the circuit ID, which contains up to 64 characters.
Step 6 ip dhcp snooping information remote-id
string
Configure the remote ID. The remote ID configurations of the switch and the DHCP server
should be compatible with each other.
string:
Enter the remote ID, which contains up to 64 characters.
Step 7 end
Return to privileged EXEC mode.
Step 8 copy running-config startup-config
Save the settings in the configuration file.
The following example shows how to enable Option 82 on port 1/0/7 and configure the strategy
as replace, the circuit-id as VLAN20 and the remote-id as Host1:
Switch#configure
Switch(config)#interface gigabitEthernet 1/0/7
Switch(config-if)#ip dhcp snooping information option

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