[ale] PPP via serial null-modem cable

Joseph A. Knapka jknapka at earthlink.net
Tue Jul 31 20:49:51 EDT 2001


Hi everyone,

Has anyone here run PPP to connect two machines via a serial
line? I'm following the instructions in the PPP-HOWTO
about this, but it's not working. Specifically, I (seem to)
get a connection, but both pppd's exit after a few seconds
with "LCP: timeout sending Config-Requests".

On machine A, I do:

pppd -detach crtscts local 10.0.0.1:10.0.0.2 /dev/ttyS0 9600

and on machine B:

pppd -detach crtscts local 10.0.0.2:10.0.0.1 /dev/ttyS0 9600

After doing the second command, I get "Connect ppp0<-->/dev/ttyS0"
on each machine, but they can't ping one another, and after
twenty seconds or so the LCP timeout message appears.

Thanks in advance,

-- Joe Knapka
"You know how many remote castles there are along the gorges? You
 can't MOVE for remote castles!" -- Lu Tze re. Uberwald
// Linux MM Documentation in progress:
// http://home.earthlink.net/~jknapka/linux-mm/vmoutline.html
2nd Lbl A + 1 = 2nd Pause 2nd Prt GTO 2 R/S
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