Reference Manual for the 54 Mbps Wireless Travel Router WGR101
B-10
Network Basics
February 2005 (202-10034-03)
IP Configuration by DHCP
When an IP-based local area network is installed, each computer must be configured with an
IP address. If the computers need to access the Internet, they should also be configured with a
gateway address and one or more DNS server addresses. As an alternative to manual
configuration, there is a method by which each computer on the network can automatically obtain
this configuration information. A device on the network may act as a Dynamic Host Configuration
Protocol (DHCP) server. The DHCP server stores a list or pool of IP addresses, along with other
information (such as gateway and DNS addresses) that it may assign to the other devices on the
network. The WGR101 wireless travel router has the capacity to act as a DHCP server.
The WGR101 wireless travel router also functions as a DHCP client when connecting to the ISP.
The router can automatically obtain an IP address, subnet mask, DNS server addresses, and a
gateway address if the ISP provides this information by DHCP.
Ethernet Cabling
Although Ethernet networks originally used thick or thin coaxial cable, most installations currently
use unshielded twisted pair (UTP) cabling. The UTP cable contains eight conductors, arranged in
four twisted pairs, and terminated with an RJ45 type connector. A normal straight-through UTP
Ethernet cable follows the EIA568B standard wiring as described below in
Table B-1
.
