The DHCP service (Dynamic Host Configuration Protocol) allows you to automate provisioning of network settings to clients in a local network. In a network with the DHCP server, each network device can be dynamically assigned an IP address, gateway address, and DNS.
UserGate is also able to work as a DHCP relay by forwarding DHCP requests from clients in different networks to the central DHCP server. For more details on how to configure a DHCP relay, please refer to Configuring DHCP.
In UserGate, you can create multiple ranges of IP addresses that will be allocated via DHCP. A DHCP server works independently on each node of the high-availability cluster. To ensure high availability of the DHCP server, make sure to configure DHCP on both nodes and allocate them non-overlapping IP ranges.
To create a new DHCP range, click Add subnet and specify the following parameters:
|
Name |
Description |
|---|---|
|
Enabled |
Enable or disable this DHCP range |
|
Node name |
Node of the cluster where this range will be created |
|
Interface |
Interface of the server om which the IP addresses from the new range will be allocated |
|
IP range |
Range of IP addresses allocated to clients by DHCP |
|
Mask |
Subnet mask allocated to clients by DHCP |
|
Lease time |
Period for which the IP addresses are allocated, in seconds |
|
Domain |
Domain name allocated to clients by DHCP |
|
Gateway |
IP address of the gateway allocated to clients by DHCP |
|
Name servers |
IP addresses of the DNS servers allocated to clients by DHCP |
|
Reserved hosts |
MAC addresses and their mapped IP addresses |
|
Ignored MAC |
List of MAC addresses that should be ignored by the DHCP server |
|
DHCP PXE boot |
Server address and boot file name provided to PXE boot |
All assigned IP addresses are shown in the Leased addresses panel. Network administrators can release any assigned address by selecting it in the list and clicking Release.