3com 3CRWE52196 User Guide

The LAN Settings screen is used to specify the LAN IP address of your 
Gateway, and to configure the DHCP server.

1 Select Unit Configuration and then specify the Gateway IP Address and 

Subnet Mask in the LAN Settings field. The default IP address of the 
Gateway is 192.168.1.1.

2 If you want to use the Gateway as a DHCP Server, click in the Enable 

check box.

3 Clicking Auto Range will automatically choose the largest available range 

of addresses for your network.

4 Check all of your settings, and then click Apply.

Figure 32   DHCP Clients List Screen

The DHCP Clients List provides details on the devices that are connected 
to the LAN. The list is only created when the Gateway is set up as a DHCP 
server. For each device that is connected to the LAN, the IP address, Host 
Name, MAC address and Client Type of that device is displayed. As you 
connect more devices to the LAN, the client list will grow to a maximum 
number of clients, which is determined by the IP address range. 

The Release button allows the lease time for the IP address that has been 
issued to a device to be cleared. The lease time is set at 12 hours. If a PC 
has been switched off, using the Release button would allow the 12 hour 
lease time to be cleared. The IP address would then be available for 
another device if there were no other IP addresses available.