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05-17-2004 06:27 PM
05-17-2004 06:27 PM
modem connection problem
Need some advise on my modem connection to linux.
my aim is to connect remotely to a RHLinux7.3 Server thru Hyperterminal.
1st set my modem to "auto-answer"
ATE0Q1&D2&C1S0=1
AT&W0
2nd set my linux inittab
T1:23:respawn:/sbin/agetty -w -I 'ATE0Q1&D2&C1S0=1' 57600 ttyS0
when i test dial-up, the modem response but
shows me a bad characters ""ð"ðf'hI,M, -1 1 rNHzY,-( ( (( .z"
instead of "login:"
had i miss out anything or do i need to perform some configuration?
this setting use to be working on my RH6.2 machine.
appreciate any advise..
thx,
my aim is to connect remotely to a RHLinux7.3 Server thru Hyperterminal.
1st set my modem to "auto-answer"
ATE0Q1&D2&C1S0=1
AT&W0
2nd set my linux inittab
T1:23:respawn:/sbin/agetty -w -I 'ATE0Q1&D2&C1S0=1' 57600 ttyS0
when i test dial-up, the modem response but
shows me a bad characters ""ð"ðf'hI,M, -1 1 rNHzY,-( ( (( .z"
instead of "login:"
had i miss out anything or do i need to perform some configuration?
this setting use to be working on my RH6.2 machine.
appreciate any advise..
thx,
3 REPLIES 3
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05-17-2004 06:34 PM
05-17-2004 06:34 PM
Re: modem connection problem
baud-rate mis-match.
One long-haired git at your service...
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05-17-2004 11:55 PM
05-17-2004 11:55 PM
Re: modem connection problem
Sometimes you can hit the Enter key a few times to sync the baud rates. Most modems now will automatically negotiate the best baud rate.
Vern
Vern
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05-18-2004 12:37 AM
05-18-2004 12:37 AM
Re: modem connection problem
Could be baud rate but it could also be parity/data bit settings. The "-m" option attempts to deduce the correct baud but it is still suggested you have a comma separated list of baud rates on the command line too.
Also, try it without an /etc/issue file because this is always output with 7 data bits and space parity.
You might also check that the serial port is set to the correct configuration with "setserial". There's no point in your modems communicating in a particular way if the serial port can't.
Personally, I'd attempt to do it without the modem initialization string too, just to see if this is an issue.
Just some things to try.
Also, try it without an /etc/issue file because this is always output with 7 data bits and space parity.
You might also check that the serial port is set to the correct configuration with "setserial". There's no point in your modems communicating in a particular way if the serial port can't.
Personally, I'd attempt to do it without the modem initialization string too, just to see if this is an issue.
Just some things to try.
Never preceed any demonstration with anything more predictive than "watch this"
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