TP-Link T2500G-10MPS User Manual page 464

Configuring DHCP VLAN Relay
Switch(config)#show ip dhcp relay
......
DHCP relay option 82 is enabled.
Existed option 82 field operation: keep.
......
Switch(config)#end
Switch#copy running-config startup-config
2.2.3 Specifying DHCP Server for VLAN
You can specify DHCP server for a VLAN. The following respectively introduces how to
configure DHCP VLAN Relay.
Follow these steps to configure DHCP VLAN Relay:
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
configure
Enter global configuration mode.
interface vlan vid
Enter management VLAN interface.
ip dhcp relay default-interface
Set management VLAN interface as the default relay agent interface.
exit
Return to global configuration mode.
ip dhcp relay vlan vid helper-address ip-address
Specify the VLAN ID and the DHCP server.
Enter the ID of the VLAN, in which the hosts can dynamically get the IP addresses from
vid:
the DHCP server.
Enter the IP address of the DHCP server.
ip-address:
show ip dhcp relay
Verify the configuration of DHCP Relay.
end
Return to Privileged EXEC Mode.
copy running-config startup-config
Save the settings in the configuration file.
DHCP VLAN Relay Configuration
Configuration Guide 440