After you install and configure TCP/IP, you need to configure a Dial-Up Networking connection to an Internet access provider. The way you configue the connection settings depends on the type of Internet server to which you are connecting.
To connect to a PPP server that supports the Password Authentication Protocol (PAP) or the Challenge-Handshake Authentication Protocol (CHAP), all you have to do is click the Dial-Up Networking connection you defined and type your user name password in the Connect To dialog box. These types of servers include Windows NT 3.5, Shiva NetModem and LanRover, or any UNIX® server that supports PAP and CHAP.
To connect to PPP servers that does not support PAP or CHAP, or to SLIP servers, you need to change settings in Dial-Up Networking for each Internet connection you define, as described in the following procedures.
For more information about defining a Dial-Up Networking connection, and about PAP and CHAP, see Chapter 28, "Dial-Up Networking and Mobile Computing."
A PPP server that does not support PAP or CHAP might require that you use a terminal window to log on. In this case, you need to specify in Dial-Up Networking that a terminal window be displayed after dialing. To provide security when there is no support for PAP or CHAP, you can require that an encrypted password be used. You can also increase the connection speed by disabling network protocols other than TCP/IP.
You are now ready to connect to an Internet access provider.
Note Windows 95 does not allow you to write a script to automate the terminal window logon process.
Windows 95 Dial-Up Networking clients support SLIP and can connect to any remote access server using the SLIP standard. However, SLIP is available only on the Windows 95 compact disc.
Both CSLIP and SLIP will appear in the Server Types dialog box in Dial-Up Networking
There are two types of SLIP accounts, uncompressed SLIP and compressed SLIP (CSLIP). You set what type of SLIP account you have for each connection you create in Dial-Up Networking.
Note If you are having trouble running TCP/IP applications after connection, you might need to change the server type from CSLIP to SLIP or vice versa.
SLIP servers do not have the capability to negotiate your TCP/IP address. Therefore, you must set Dial-Up Networking to display a terminal window after you dial the Internet server. After you type your user name and password, IP address information will be displayed in the terminal window as described in the following procedure.
You can also make sure the Log On to Network check box is cleared because SLIP servers allow you to log on only in a terminal window. Notice that the only protocol allowed is TCP/IP.
You must follow the provider's guidelines for logging on to its server. Most Internet access providers require only that you type a user name and password. However, other access providers require additional information.
In most cases, after you type your user name and password, the access provider will display two IP addresses, a host IP address and your IP address. (If the access provider does not display the IP addresses, you should find them out from them.) The second address displayed is usually your IP address, which you should write down, and then click F7.
Note You can use ping commands at the command prompt to differentiate the local from the host IP address. At the command prompt, type ping and the local IP address (for example, 123.45.6.7), and then ping to another server on the Internet. If the local address works, and the server address does not, contact the access provider.
After you connect to an Internet access provider, Windows 95 displays a dialog box named Connected To Internet (or whatever name you gave the Dial-Up Networking connection to the Internet). You can minimize this dialog box and begin your Internet session by running FTP, Telnet, or other Internet browsing applications as described later in this chapter.
The IP configuration utility (WINICPFG) is a troubleshooting utility that displays all current TCP/IP network configuration values for any computer running Microsoft TCP/IP. Network configuration values include the current IP address allocated to the computer and other useful data about the TCP/IP allocation. This utility is of particular use on systems running DHCP, allowing users to determine which TCP/IP configuration values have been configured by DHCP.
The IP configuration utility does not, however, dynamically update information. If you make any changes, such as disconnecting, you must exit the IP configuration utility and restart it again.
To run WINIPCFG, click the Start button, click Run, and type winipcfg.