Cisco Systems WRT54G3G-ST Network Router User Manual


 
57
Chapter 8: Configuring the Wireless-G Router for Mobile Broadband
The Setup Tab - Basic Setup
Wireless-G Router for Mobile Broadband
MTU. MTU is the Maximum Transmission Unit. It specifies the largest packet size permitted for Internet
transmission. The default setting, Manual, allows you to enter the largest packet size that will be transmitted.
The recommended size, entered in the Size field, is 1492. You should leave this value in the 1200 to 1500 range.
To have the Router select the best MTU for your Internet connection, select Auto.
Network Setup
The Network Setup section changes the settings on the network connected to the Router’s Ethernet ports.
Wireless setup is performed through the Wireless tab.
Router IP
This presents both the Router’s IP Address and Subnet Mask as seen by your network.
Network Address Server Settings (DHCP)
The settings allow you to configure the Router’s Dynamic Host Configuration Protocol (DHCP) server function. The
Router can be used as a DHCP server for your network. A DHCP server automatically assigns an IP address to
each computer on your network. If you choose to enable the Router’s DHCP server option, you must configure all
of your network PCs to connect to a DHCP server (the Router), and make sure there is no other DHCP server on
your network.
DHCP Server. DHCP is enabled by factory default. If you already have a DHCP server on your network, or you
don’t want a DHCP server, then click the Disable radio button (no other DHCP features will be available).
Starting IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. Because the
Router’s default IP address is 192.168.1.1, the Starting IP Address must be 192.168.1.2 or greater, but smaller
than 192.168.1.253. The default Starting IP Address is 192.168.1.100.
Maximum Number of DHCP Users. Enter the maximum number of PCs that you want the DHCP server to assign
IP addresses to. This number cannot be greater than 253. The default is 50.
Client Lease Time. The Client Lease Time is the amount of time a network user will be allowed connection to the
Router with their current dynamic IP address. Enter the amount of time, in minutes, that the user will be “leased”
this dynamic IP address. After the time is up, the user will be automatically assigned a new dynamic IP address.
The default is 0 minutes, which means one day.
Static DNS (1-3). The Domain Name System (DNS) is how the Internet translates domain or website names into
Internet addresses or URLs. Your ISP will provide you with at least one DNS Server IP Address. If you wish to use
another, type that IP Address in one of these fields. You can type up to three DNS Server IP Addresses here. The
Router will use these for quicker access to functioning DNS servers.
Figure 8-9: Router IP
Figure 8-10: Network Address Server Settings