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Date:      Wed, 21 May 1997 13:14:36 +0100
From:      Simon N Atkin <simat@enta.net>
To:        freebsd-questions@FreeBSD.ORG
Subject:   PPP Dialin, burst traffic
Message-ID:  <3382E72C.583E@enta.net>

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Hi, setup my freebsd bsd box at the
weekend for dialin with PPP running across it,

It's much faster than using a router (obviously)
But when downloading a file from the server that
the modem is connected to I only get burst pulses of traffic.

The modems at both end are 28800 BPS with the DTE
set to 38400.

the entry in /etc/ttys is

# Serial terminals
ttyd0   "/usr/libexec/getty VH38400"    dialup  on 
#ttyd1  "/usr/libexec/getty VH38400"    dialup  on 
ttyd1   "/usr/libexec/getty std.38400"  dialup  on   # this one !!

std.38400 works fine (most of the time) with the modem not
locked to DTE.  I get a login prompt first time so this must
mean a 38400 DTE connect.

The /usr/local/bin/ppplogin entry is 

#!/bin/sh
exec /usr/sbin/pppd proxyarp :x.x.x.x
exit

I didn't use the tunNEL device because I wouldn't hangup the connection
after use.
Could it be PPP that is causing the burst pulse traffic ??

Any ideas anyone.

Simon Atkin. ;)

Just in case anyone doesn't understand burst pulse traffic,
then it is that the modem RX light doesn't stay on all the time
while transfering , i.e loss of bandwidth.



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