Configuration and Management
1/1551-CRH 102 167 Uen Rev A 2006-09-07
25
The following information and configuration options are displayed on top of
the LAN page:
W20 IP address
The LAN address of the Ericsson W20.
Subnet mask
The subnet mask, which determines the range of IP
addresses on the subnet.
If you want to change the W20 IP address, make sure that the new address
is not included in the DHCP server IP address range, displayed in the
DHCP Server section. The default range is 192.168.1.2 – 192.168.1.100.
Before you change the W20 IP address or subnet mask you also have to
make sure that the DHCP server IP address range is included in the new
subnet. If you want to change the subnet not to include the DHCP IP
address range, you first have to disable the DHCP server.
To change the W20 IP address or subnet mask, type the new value in the
corresponding field and click Apply to save the settings.
Note: If you change the LAN IP address while connected to the Ericsson
W20 web pages through a web browser, you will be disconnected.
You have to redirect the web browser to the new address in order
to confirm the new settings. Type the new LAN IP address in the
Address (URL) field and press the key.
2.5.1 DHCP Server
The Ericsson W20 incorporates a DHCP (Dynamic Host Configuration
Protocol) server that assigns dynamic IP addresses to local clients. The IP
addresses are collected from a predefined range of available addresses.
The default address range is suitable for most local networks.
The DHCP server uses the concept of a "lease”, that is the amount of time
that a given IP address will be valid for a specific device. If the lease time
expires and the device is still connected, the lease is automatically
renewed.
The following configuration options are displayed in the DHCP server
section on the LAN page:
Enable DHCP server
If this check box is selected the DHCP server is
working, otherwise it is turned off.
IP address range
from
The first IP address in a range of IP addresses
that can be assigned to the LAN clients.
