ric@cs.arizona.edu (Ric Anderson) (06/29/90)
We have some "tip" modems on a Unix system, which, for various reasons, we would like to relocate to our Cisco Terminal Server, as a dialout pool. Having done some experimentation, I've come up with an ip alias for the rotary containing the modems. Thus, a simple "telnet modem" from one of our Unix systems gets you a modem. Currently the speed you get seems to be the following, partly due to a "telnet speed 1200 2400" being in effect on the lines in the dialout group. 1. If you are on a terminal server port, at a speed of 1200, and you connect to the "modem" group, you get a speed of "1200". 2. If you are on a terminal server port at a speed of 2400 or above, you get a modem speed of 2400. 3. If you are on a Unix host, and "telnet" to the "modem", you get a speed of 2400. The one part of this I haven't found an answer for, is how does a user, on a Unix host, set the speed that the "modem" will operate at? Along the same lines, how does a user, on a Unix host, select the parity and data bits to be used for a particular session on the dialout modem? Thanks in advance, Ric Ric Anderson Bitnet: Ric@Arizrvax Member of the Technical Staff Internet: ric@cs.arizona.edu University of Arizona UUCP: uunet!arizona!ric Department of Computer Science AT&T: (602) 621-4048 Gould-Simpson Room 721 Tucson, Arizona 85721
lcastell@hpfcso.HP.COM (Lee Castellion) (07/04/90)
Answer, You cannot have the user set their speeds. Rather, you must set up different modem groups for each speed and parity combination you want. If you find a better solution please let me know.
hedrick@athos.rutgers.edu (Charles Hedrick) (07/05/90)
I don't recall the question to which this is an answer, but it seems to be talking about setting speeds for an outgoing call. Cisco supports the telnet terminal speed option. If you send terminal speed on a connection to an outgoing modem, it should adjust the speed. To enable this, use the configuration command "telnet speed 9600 9600" for the terminal line in question. This says to accept the telnet speed option for incoming telnet connections to this line, and that both the maximum and default are 9600. Obviously for slower modems you can use other numbers. Normally this is intended to pass on the current speed. E.g. if you are dialed up at 2400 bps on a Unix machine, and telnet to a dialout port on a cisco box, telnet will pass 2400 bps to the cisco box, and the speed will match automatically. (This assumes that your telnet supports the speed option, obviously.) If you need to make a connection at a different speed than your controlling terminal is set (and it's impractical to use stty to change the speed), you'll need to hack up telnet to allow an option to send the speed.