DHCP Server

A DHCP Server can manage IP settings for devices on its local network by assigning IP addresses to those devices automatically and dynamically.

This configuration is done on the LAN panel of each appliance.

You can allocate IP adresses by configuring dynamic ranges, excluded ranges or by defining static assignments. Note that you can configure a combination of the three types; if the same address is configured multiple times, the order of priority is first excluded, then static, then dynamic.

DHCP service(s) must be configured first in the VLAN tab before you can configure additional parameters in this DHCP Server tab.

Configure Address Allocation

Dynamic

If you select Dynamic, click Add New Range and enter the first IP address and last IP address of the Dynamic Range. The DHCP Server will assign one IP address from these dynamic ranges to the DHCP client.

Excluded

The appliance IP addresses (network address and broadcast address of the used subnet) are automatically listed. You can Add a New Range and enter the first IP address and last IP address of the Excluded Range. The IP addresses of these ranges will never be assigned to a DHCP client by the DHCP Server.

Static

The Static option applies to the current appliance according to its MAC address. Click Add New Assignment and enter the IP address to be assigned to the DHCP client with a specific MAC address.

Notes

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If an IP address is included in both a dynamic range and an excluded range, the exclusion is taken into account, i.e. the IP address cannot be allocated to a DHCP client.

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If an IP address is included in both a static assignment and an excluded range, the exclusion is taken into account, i.e. the IP address cannot be allocated to a DHCP client.

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If an IP address is included in a both a dynamic range and a static assignment, the static assignment is taken into account and the IP address is allocated to the DHCP client with the specified MAC address.