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- Path: serra.unipi.it!michelotto
- From: michelotto@mvxpd5.pd.infn.it (Michele Michelotto)
- Newsgroups: comp.dcom.modems
- Subject: Re: dial in on unix
- Date: 5 Jan 1996 09:14:08 GMT
- Organization: CERN - European Laboratory for Particle Physics
- Sender: michelotto@vsde00.pd.infn.it (Michele Michelotto)
- Distribution: world
- Message-ID: <4ciq50$jvs@serra.unipi.it>
- References: <4cdk4v$28tu@serra.unipi.it> <820704253snz@genesis.demon.co.uk>
- Reply-To: michelotto@mvxpd5.pd.infn.it
- NNTP-Posting-Host: delphi.pd.infn.it
- X-Newsreader: mxrn 6.18-9
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-
- In article <820704253snz@genesis.demon.co.uk>, Lawrence Kirby <fred@genesis.demon.co.uk> writes:
- |>
- |>I'm not familiar with the precise details of BSDI but I've seen this
- |>on other types of Unix system. The usual cause of this is that carrier detect/
- |>DCD isn't being handled properly. The modems connect, the Sportster sends
- |>the CONNECT message to the host where getty (or whatever) promptly echoes
- |>it back to the modem. If you send characters to a Hayes compatible
- |>modem while it is answering it aborts the connect and drops the line. A
- |>'quick fix' is to disable result codes in the modem (probably via a DIP
- |>switch on the Sportster). The correct fix is to get all parts of the
- |>system configured correctly for DCD. The modem should be set to make DCD
- |>follow the CD status, again probably with a DIP switch on the Sportster
- |>otherwise with &C1. On the host you must use a port which responds to
- |>the DCD signal. This is often referred to as a 'modem control' port.
- |>
- |>You may also have to configure the answer speed on the Sportster. Set &B1
- |>for a fixed speed and store that setting and the speed in NVRAM. When you
- |>write to NVRAM using &W the currect speed of the interface (i.e. your
- |>serial port speed) is written out with the rest of the settings, ATI5
- |>shows the stored value. When the modem autoanswers with &B1 set it
- |>switches itsi'm calling from a w95 machine with a usr sportster 28.8
-
- Thank you..this is a detailed answer...
- the &b1 is ok.
- what is going on is the following...
-
- i'm calling from a w95 machine with a usr sportster 28.8
- that works perfectly. I can connect to oether modem withour problem
-
- the receiving modem is a sporster 28.8 too.
-
- the receiving modem answer the call
- I can see the message
- CONNECT 28800/ARQ/V34/LAPM/V42BIS
- then I receive a char a with a grave accent
- i can type in some char that are transmitted... I can see it login in with tip
- and giving the command ati6
- the two modem agree on the number of character received and transmitted.
- but the calling modem drops the communications
- ati6 on the calling mode says
-
- Disconnect Reason is Loop loss disconnect
-
- while the receiving modem says
-
- DIsconnect Reason is DISC received
-
- in one occasion I managed to have the prompt but I can't reproduce it
- however after I logged in the modem dropped the connection
-
- the gettytab entry is:
- en|38400 link, locked DCE speed:\
- :bi:sp#38400:hf:np:tc=38400-baud:ms=cs8:
-
-
- |>
- |>--
- |>-----------------------------------------
- |>Lawrence Kirby | fred@genesis.demon.co.uk
- |>Wilts, England | 70734.126@compuserve.com
- |>-----------------------------------------
- |>
-
- --
- -- |\ _,,,--,,_
- /,`.-'`' ._ \-;;,_
- |,4- ) )_ .;.( `'-'
- '---''(_/._)-'(_\_) Cheers, Michele
- ********************************************************************************
- * Michele Michelotto, INFN Padova, Delphi group. Tel (+39).49.844347 *
- * e-mail: michelotto@padova.infn.it michelotto@cern.ch (vaxfpd::michelotto)*
- * I haven't lost my mind, it's backed up on tape somewhere. ⌐*
- ********************************************************************************
-