Hardware Reference
In-Depth Information
TCP/IP: LAN and Dial-up Networks
TCP/IP,unliketheothernetworkprotocolslistedintheprevioussection,isalsoaprotocol
used by people who have never seen a NIC. People who access the Internet via modems
(thisisreferredtoasdial-upnetworkinginsomeolderWindowsversions)useTCP/IPjust
as those whose web access is done with their existing LANs. Although the same protocol
is used in both cases, the settings vary a great deal.
Table 17.10
summarizes the differences you're likely to encounter. If you access the In-
ternet with both modems and a LAN, you must ensure that the TCP/IP properties for mo-
dems and LANs are set correctly. You also might need to adjust your browser settings to
indicate which connection type you are using.
Table 17.10
provides general guidelines;
your ISP or network administrator can give you the specific details.
Table 17.10 TCP/IP Properties by Connection Type: Overview
As you can see from
Table 17.10
, correct settings for LAN access to the Internet and
dial-up networking (modem) settings are almost always completely different. In general,
the best way to get your dialup networking connection working correctly is to use your
ISP's automatic setup software. This is usually supplied as part of your ISP's signup
software kit. After the setup is working, view the properties and record them for future
troubleshooting use.
IPX
The IPX protocol suite (often referred to as
IPX/SPX
) is the collective term for the propri-
etaryprotocolsNovellcreatedforitsNetWareOS.Althoughbasedlooselyonsomeofthe
TCP/IP protocols, Novell privately holds the IPX protocol standards. However, this has
not prevented Microsoft from creating its own IPX-compatible protocol for the Windows
OSs.
