IP Address Distribution

The 'IP Address Distribution' section allows you to configure the gateway's Dynamic Host Configuration Protocol (DHCP) server parameters. The DHCP automatically assigns IP addresses to network PCs. If you enable this feature, make sure that you also configure your network PCs as DHCP clients. For a comprehensive description of this feature, please refer to section 11.27.

Select one of the following options from the 'IP Address Distribution' combo-box:

• DHCP Server

  Start IP Address

  The first IP address that may be assigned to a LAN host. Since the gateway's default IP address is 192.168.1.1, this address must be 192.168.1.2 or greater.

  End IP Address

  The last IP address in the range that can be used to automatically assign IP addresses to LAN hosts.

  Subnet Mask

  A mask used to determine to what subnet an IP address belongs. An example of a subnet mask value is 255.255.0.0.

  Lease Time In Minutes

  Each device will be assigned an IP address by the DHCP server for a this amount of time, when it connects to the network. When the lease expires the server will determine if the computer has disconnected from the network. If it has, the server may reassign this IP address to a newly-connected computer. This feature ensures that IP addresses that are not in use will become available for other computers on the network.

  Provide Host Name If Not Specified by Client

  If the DHCP client does not have a host name, the gateway will automatically assign one for him.

  Figure 5.37: IP Address Distribution - DHCP Server

  

• DHCP Relay
  Your gateway can act as a DHCP relay in case you would like to dynamically assign IP addresses from a DHCP server other than your gateway's DHCP server. Note that when selecting this option you must also change OpenRG's WAN to work in routing mode. For more information, see section 11.27.2.
  1. After selecting 'DHCP Relay' from the drop down menu, a 'New IP Address' link will appear:

     Figure 5.38: IP Address Distribution - DHCP Relay

     
     Click the 'New IP Address' link. The 'DHCP Relay Server Address' screen will appear:

     Figure 5.39: DHCP Relay Server Address

     
  2. Specify the IP address of the DHCP server.
  3. Click 'OK' to save the settings.

• Disabled
  Select 'Disabled' from the combo-box if you would like to statically assign IP addresses to your network computers.

  Figure 5.40: IP Address Distribution - Disable DHCP