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Date: Fri, 26 Apr 1996 12:58:49 +0000
From: Grag <grag@fssr.ru>
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To: Dan Moore <dan0@habanero.clark.net>
CC: questions <questions@freebsd.org>
Subject: Re: PPP on FreeBSD
References: <317E410D.32CC0448@habanero.clark.net>
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Dan Moore wrote:
> 

> 
> I am having considerable difficulty getting kernel PPP to work with
> FreeBSD; I am trying to connect with my provider, ClarkNet 
> in Maryland,
> and am getting the following activity in /var/log/messages when running
> with both debug and kdebug:
> ---------------------------------------------------------------------
> Apr 21 13:55:35 habanero pppd[229]: pppd 2.1.2 started by root, uid 0
> Apr 21 13:55:45 habanero login: login on ttyv1 as dan0
> Apr 21 13:56:00 habanero pppd[230]: Connect: ppp0 <--> /dev/cuaa1
> Apr 21 13:56:00 habanero /kernel: ppp0 output:
> ff03c02101010012010405dc050631794
> c4507020802
> Apr 21 13:56:02 habanero /kernel: ppp0: garbage received: 0xd (need
> 0xFF)
[skipped]
> Apr 21 13:56:30 habanero pppd[230]: LCP: timeout sending Config-Requests
> Apr 21 13:56:30 habanero pppd[230]: Connection terminated.
> Apr 21 13:56:30 habanero pppd[230]: Serial link is not 8-bit clean:
> Apr 21 13:56:30 habanero pppd[230]: All received characters had bit 7
> set to 0

We had similar diagnostics when were trying to setup ppp session between FreeBSD 2.1's
PPPD and Solaris 2.4's ASPPPD. 
I have no technical details but the problem was solved when we turn off magic number
negotionion (-mn in .ppprc for FreeBSD) and turn off masking control symbols (asyncmap 0
for both FreeBSD and Solaris). 
The ppp session starts but isn't stable.