User's Manual

DB108-WL wireless ADSL MODEM manual
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4. Application of DHCP and DNS Features
Not only can the DB108-WL be used as an ADSL Modem, it also has routing, DHCP and DNS features,
which are especially applicable for small LAN such as cyber cafés and/or small companies.
When DB108-WL is used in LAN, the connection is shown as Figure 4.1
Figure 4.1
Router and proxy server are not always necessary in the LAN. You can use DB108-WL as the router, and
DHCP, DNS as the server. The configuration is as follows:
4.1 TCP/IP PROTOCOL CONFIGURATION
1. Set IP address as “Automatically obtain IP address”
2. Set gateway same as IP of DB108-WL
3. Set DNS’s address at DB108-WL’s IP address or validated DNS address
4.2 DB108-WL SETTINGS
1. Set protocol referring to chapter 3
2. DHCP server settings
Using DB108-WL you can dynamically manage up to 253 IP addresses, as described below.
z Select“DHCP SERVER”
z Set “DHCP address pool selection” to “user defined”
z Define the “Start IP address” and the “End IP address” of DHCP server (for example, from 192.168.1.2
to 192.168.1.254).
z Input the value of lease (Measure by the second, zero indicates permanently valid)