Introduction Details preparing IBM's OS/2 Warp for use with MIT's Internet access service(Tether) using your phone line and modem are described. This is not intended for those who have a NIC(network Interface card) or for any other Operating System other than OS/2 Warp, including for example, OS/2 2.11 or OS/2 Warp Connect. Requirements If you don't have OS/2 Warp installed, the requirements are enticing. 386 SX--compatible or better PC 4MB Ram (8MB or more would be better) 35--55MB free hard disk space 1.44MB 3.5" diskette drive VGA or better video support IBM compatible mouse For internet access, you must also install the Internet Access Kit (IAK) which is bundled with Warp as part of what IBM calls the Bonus Pak. The entire PAK requires approximately 30MB of additional disk space, however the IAK itself requires only slightly more than 8MB of additional disk space. The first release of Warp "for Windows" only included SLIP(Serial Line Internet Protocol) capability; OS/2 Warp "full--pack" added the PPP(Point to Point Protocol) drivers. Since Tether only supports PPP, you will have to acquire the PPP drivers if you are running Warp for Windows and even if you are running full--pack you may want to acquire the latest update for the PPP drivers. The drivers are located on numerous OS/2 ftp sites/bulletin boards as well as here at MIT. Contact any of the MIT OS/2 partners (OS2PARTNERS@mit.edu) if you're having a problem finding/installing the PPP drivers. One sure place to acquire these is IBM's internet file server devoted to software upgrades. If you have internet access, try the following sequence: ftp ftp01.ny.us.ibm.net When the logon prompt appears, logon as anonymous or ftp and use your e-mail address for a password. CD (Change Directory) to pub/PPP and retrieve the files readme.ppp and ppp.zip using the GET command. Be sure to issue the BINARY or IMAGE command before issuing GET ppp.zip. Read the readme.ppp file and unzip ppp.zip and run the installation program. This will install the updated SLIP/PPP dialer on your hard disk. You are now ready to connect to MIT's tether service. Starting the Dialer To start the dialer double click on the icon dial other internet providers located in the folder internet utilities contained in the IBM internet connection for OS/2 folder. It's best if you shadow dial other internet providers on your launch pad for quick, single button access. Customization for tether From the dial up tcp/ip menu, click on add entry as shown in Figure 1. The first of four screens deals with LOGIN information.. LOGIN INFORMATION FIELD SAMPLE ENTRY COMMENT *Name: MIT Required Description: MIT Tether Login ID: magnet Password: ******** Phone Number: 252-6955 Login Sequence: None Connection Type: PPP SLIP not supported Automatic Hangup: 30 Can be OFF, 5, ..., 120 Minutes The second input screen prompts for connection information: CONNECTION INFORMATION FIELD SAMPLE ENTRY COMMENT Your IP Address: Blank Dynamically assigned Destination IP Address: Blank Netnask: Blank *MRU SIze: 1500 Required VJ Compression: Yes (Check Box if you have it) *Domain Nameserver: 18.170.0.151 One of several Your Host Name: Blank *Your Domain Name: mit.edu Required. (What else?) IP addresses are assigned dynamically. There are several Domain Nameservers to choose from. Network Services (3-4101) should be able to provide you with the best choice. The Domain Name should be set to mit.edu. The third fill-in menu requires server information, both default servers/hosts and mail server names. These are required if you plan on using the News Reader and Web EPxplorer. The network help desk(3-4101) should be able to tell you your POP mail server name or at least tell you how to get it. Either news.mit.edu or senator-bedfellow.mit.edu may be used for the default news server. DEFAULT SERVERS/HOSTS FIELD SAMPLE ENTRY COMMENT News Server: news.mit.edu Gopher Server: gopher.mit.edu WWW Server: web.mit.edu POP Mail Server: po8.mit.edu check with 3-4101 Reply Domain: mit.edu Reply (Mail) ID: magnet choose your own POP Login ID: magnet POP Password: ******** password is displayed The final fill-in concerns modem information. Tether supports line speeds up to 28.8 KBPS, nearly the limit of a voice-grade phone line. If your modem type is not included in the list, you can get the latest update from the same bulletin boards/ftp sites noted earlier. If you still can't find your modem in the list, choose other. You should choose a baud rate at least as fast as your hardware and you may be able to double that if your modem uses compression. The sample entry lists 38,400 baud which is almost double the speed listed for a 14,400 baud modem with compression. Initialization strings are modem dependent and are generally found in your modem manual. If you have call waiting service, be sure to click on this to prevent disruptions. This should be enough to get you started on the internet access provided by MIT. More detailed information on each menu item is provided by clicking on HELP or pressing F1 for context sensitive help for each field. Contact me or anyone in the MIT OS/2 users group if you need assistance. Good luck! MODEM INFORMATION FIELD SAMPLE ENTRY COMMENT Modem Type: Alliance V.32 Choose yours COM Port: 1 Pick serial port Speed(BAUD): 38400 14400 with compression MODE: Dial Don't pick Answer Data Bits: 8 Parity: None Parity bit is not used Prefix: ATDT Standard Hayes Init String1: AT&F Modem Dependent Init String2: -- Modem Dependent Call Waiting: Check for no disruptions OS/2 Warp and MIT's Internet Access John Maglio (magnet@mit.edu), August 1995