TP-Link AC50 Configuration Manual page 18

Click to create a DHCP server. The page will be shown as below.
Figure 3-4 Add a DHCP Server
Interface
Starting/Ending IP
Address
Lease Time
Default Gateway
Default Domain
Primary DNS
Secondary DNS
Status
Click OK to finish the settings.
Select the interface which you want to create the DHCP server for. Refer to
to set the interface first.
Interface
Specify the starting IP address and ending IP address of the DHCP server IP
pool. The IP pool should be in the same segment with the interface IP address.
Enter the time duration of the IP address assigned by the DHCP server between
2 and 2880 minutes. The default is 120 minutes. Before the time is up, DHCP
server would not assign this IP address to other APs or clients.
Optional: Specify the IP address of gateway for the server.
Optional: Specify the domain of for the server.
Optional: Specify the primary DNS server for the server.
Optional: Specify the secondary DNS server for the server.
Check the box to enable the DHCP service.
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