Why Check Tcp/Ip And Ip Address Settings; Checking Tcp/Ip And Ip Address Settings - 3Com Dual 56K User Manual

32 C 3: B
HAPTER EFORE
Why Check TCP/IP and
IP Address Settings?
TCP/IP Settings
Checking TCP/IP and IP
Address Settings
Windows 95, 98, NT, and
2000:
Y B
OU EGIN
A Web Browser, such as Netscape Navigator (4.0 or later) or Microsoft
Internet Explorer (4.0 or later).
Your computer is used to configure the LAN Modem, in addition to being one of
its networked devices. You use the web browser installed on your computer to
access the LAN Modem's internal configuration screens.
The Dual 56K LAN Modem is an IP router designed for optimal use with networks
that use dynamic IP addressing. For most people using the LAN Modem for
shared Internet access, dynamic IP addressing is the type of addressing scheme
most often used by Internet Service Providers (ISPs). It is also the type of addressing
prevalent in many existing corporate networks.
Although the Dual 56K LAN Modem is not limited to use with dynamic IP
networks (some users may find that their ISP or the corporate network to which
they want to connect employ static IP addressing), the steps for installing and
configuring the Dual 56K LAN Modem will differ, depending on the type of
addressing your computer is set up to use.
If you already know that you will be dialing out to a network that uses static IP
addressing, or if you are setting up an advanced LAN Modem site-to-site network
and plan to use a static IP addressing scheme, refer to the instructions under
"Setting Up Your Computer If You Have a Static IP Address" in this chapter.
Because the Dual 56K LAN Modem is an IP-only router, any computer attached to
the Dual 56K LAN Modem must also have TCP/IP installed for the LAN Modem to
communicate with the computer. For Windows 95, 98, NT, and 2000, and for
Macintosh OS 7.6 or later, TCP/IP is provided as part of your operating system.
However, if you are using Windows and have never made remote connections
from your computer, you may have to add TCP/IP to your computer's protocol list
to "bind" it to your Ethernet adapter, even though the protocol is included with
the operating system. Instructions for doing this are provided under "Adding
TCP/IP to Your Protocols List" below.
To check your TCP/IP settings and your dynamic vs. static IP address setup, follow
the instructions for your operating system. You should perform this check for each
computer that you plan to connect to the LAN Modem.
Simply run the EZ-LAN Wizard, located on the OfficeConnect Dual 56K
Companion Programs CD-ROM included with your LAN Modem package, on your
computer. EZ-LAN checks your PC's settings and, if you choose, optimizes them for
use with the LAN Modem by making the following changes:
Sets your PC to obtain its IP address and subnet mask from the LAN Modem's
DHCP server.
Changes your PC's default gateway settings, so that the LAN Modem is
configured as its default gateway.
Changes your PC's DNS server settings, so that the LAN Modem is configured
as its DNS server.