TP-Link TL-R470T Plus Configuration Manual page 30

Configuring Network
Starting IP
Address
Ending IP
Address
Lease Time
Default Gateway
Default Domain
Primary/
Secondary DNS
Option60
Option 138
Status
 Configuring the Address Reservation
Choose the menu Network > LAN > Address Reservation and click Add to load the
following page.
Enter the starting IP address of the DHCP server's IP pool. The IP pool defines the IP
range that can be assigned to the clients in the LAN.
Note: The starting IP address should be in the same subnet with the IP address of the
LAN port.
Enter the ending IP address of the DHCP server's IP pool. The ending IP address
should be greater than the starting IP address.
Note: The ending IP address should be in the same subnet with the IP address of the
LAN port.
Specify the lease time for DHCP clients.
Lease time defines how long the clients can use the IP address assigned by the DHCP
server. Generally, the client will automatically request the DHCP server for extending
the lease time before the lease expired. If the request failed, the client will have to stop
using that IP address when the lease finally expired, and try to get a new IP address
from the other DHCP servers.
Optional. It is recommended to enter the IP address of the LAN port.
Optional. Enter the domain name of your network.
Optional. Enter the DNS server address provided by your ISP. If you are not clear,
please consult your ISP.
Optional. Specify the option 60 for device identification. Mostly it is used under the
scenario where the clients apply for different IP addresses from different servers
according to the needs. By default, it is TP-LINK.
If a client requests option 60, the server will respond a packet containing the option
60 configured here. And then the client will compare the received option 60 with its
own. If they are the same, the client will accept the IP address assigned by the server,
otherwise the assigned IP address will not be accepted.
Optional. Specify the option 138, which can be configured as the management IP
address of an AC (Access Controller) device. If the APs in the local network request
this option, the server will respond a packet containing this option to inform the APs
of the AC's IP address.
Check the box to enable the DHCP server.
LAN Configuration
Configuration Guide 23