DHCP Server - Advanced

DHCP stands for Dynamic Host Configuration Protocol and is a protocol for auto-configuration of IP interfaces. Learn more about DHCP

Here you can specify which IP addresses the DHCP server should give to certain clients. (Usually this is not necessary - the DHCP server chooses addresses by itself from the specified address range.)

IP Address the IP address to be given to the client. Must be within the corresponding port's subnet, but does not need to be within the “From/To” range given to the DHCP server.

MAC address the unique MAC address of the client to receive the IP address.

Known hosts list of hosts known by this unit. The list can be used to ease configuration by pressing Add this host. (After that the IP address can be changed if desired.) Press “Apply” after you are finished.

Lease time values for IP addresses given to clients on the LAN.

Normal If the DHCP client on the LAN doesn't ask for a particular time value, this is the lease time used. Maximum If the DHCP client on the LAN asks for longer time than this, this is the lease time used. If a shorter time is requested by the client, it is granted. NOTE: The DHCP client normally starts refreshing the lease after half the agreed lease time.

Use this if the DHCP server should send any additional options to the clients (the IP address, default gateway, broadcast address, DNS and domain name are always sent).

Option Number according to RFC2132, along with identification (the ISC DHCP server standard names). Data The data for the option. Typically an IP address in dot notation, a string or a number, depending on the option. Some options (no. 19,20,27,29,30,31,34,36,39) are flags - write “true” or “false” for these. For arrays of values (e.g. “time-servers”) use comma as separator.