Linksys RT31P2-NA User Manual page 22

Broadband Router with 2 Phone Ports
Optional Settings
Some of these settings may be required by your ISP. Verify with your ISP before making any changes.
Host Name and Domain Name. These fields allow you to supply a host and domain name for the Router. Some
ISPs require these names as identification. You may have to check with your ISP to see if your broadband Internet
service has been configured with a host and domain name. In most cases, leaving these fields blank will work.
MTU. The MTU (Maximum Transmission Unit) setting specifies the largest packet size permitted for network
packet: a unit of data sent over a network
transmission. Select Enable and enter the value desired. It is recommended that you leave this value in the 1200
to 1500 range. For most DSL users, it is recommended to use the value 1492. By default, MTU is set at 1500 when
disabled.
Network Setup
The Network Setup section allows you to change the Router's local network settings.
Router IP
The values for the Router's Local IP Address and Subnet Mask are shown here. In most cases, keeping the default
values will work.
Local IP Address. The default value is 192.168.15.1.
Subnet Mask. The default value is 255.255.255.0.
Network Address Server Settings (DHCP)
These 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. Unless you already have one, it is highly recommended that you leave the Router
enabled as a DHCP server.
Local DHCP Server. DHCP is enabled by factory default. If you already have a DHCP server on your network, set
the Router's DHCP option to Disable. If you disable DHCP, remember to assign a static IP address to the Router.
Start IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. Because the default
IP address for the Router is 192.168.15.1, the Start IP Address must be 192.168.15. 2 or greater, but smaller than
192.168.15.254. The default Start IP Address is 192.168.15.100.
Chapter 5: Configuring the Router 16
The Setup Tab - Basic Setup