serial modem
Brent Bloxam
brentb at beanfield.com
Mon Jun 29 15:41:28 UTC 2009
kalin m wrote:
>
> hi all...
>
> my first time using serial ports and modems. the modem is hooked up
> using RS-232 cable...
>
> modem specs:
>
> • Baud Rate: 115.2kbps
> • Bits: 8
> • Stop Bits: 1
> • Parity: none
> • Hardware Handshaking: Yes
>
>
> my /etc/ttys:
>
> ttyd0 "/usr/libexec/getty std.115200" dialup on
> ttyd1 "/usr/libexec/getty std.115200" dialup on
>
> then i do:
> # kill -HUP 1
>
> ps shows:
> 62496 0.0 0.2 3184 952 ?? I 10:53PM 0:00.00 /usr/libexec/getty
> std.115200 ttyd0
> 62667 0.0 0.2 3184 1004 ?? I 11:37PM 0:00.00 /usr/libexec/getty
> std.115200 ttyd1
>
> according to the handbook i would see the above. i'm not sure if i need
> both ttyd0 and 1 since i have hooked only one modem but there is no
> explanation about that in the handbook.
>
> messages says:
> Jun 28 23:37:17 moo getty[62667]: open /dev/ttyd1: No such file or
> directory
>
> and no other entries... so i guess that settles the need of ttyd1!?!
>
> ok. so now i put in /etc/remote:
> sio0|com1:dv=/dev/cuad0:br#115200:pa=none:
>
> and, following the instructions in the handbook, try reaching the modem
> doing:
> # tip -v cuad0
>
> i get:
> tip: unknown host tip0
>
I've no experience with serial modems, but having read the man pages I
believe your remote(5) line is incorrect.
sio0|com1:dv=/dev/cuad0:br#115200:pa=none:
sets system names sio0 and com1, then you try to execute tip to connect
to cuad0. Is there an entry for cuad0 in your /etc/remote? I'm confused
as to why tip is returning 'unknown host tip0' however.
Give `tip -v sio0` a shot, or change the system names in your
/etc/remote line
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