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Article #57313

Re: pppd: Serial line is looped back.

#57313
From: John Saunders
Date: Fri, 18 Oct 1996 00:00
28 lines
1776 bytes
Holland <holland@iinet.net.au> wrote:

>  pppd[298]: Serial line is looped back.
> 
> Do I need a delay after sending the PPP command?

This seems to be caused by a delay between starting pppd on the server
and pppd actually starting and disabling echo on the serial port. The
simplest way to avoid this is to wait for the ~ character in your chat
script. This way you know that pppd has started before your pppd sends
packets down the serial line.

>  If I log in manually, rather than getting pppd to call chat,
> it works fine.

When you log in manually there is a delay (unless you can type really fast :-)
which gives pppd the time to start. You may also wait for the first packet
to be sent before you consider yourself logged in and start pppd.

Cheers.
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Message-ID: <54704o$7ch@mailhub.scitec.com.au>
Path: arc1-ca.pugleaf.net!unknown!not-for-mail
References: <32665D9E.1D956D1@iinet.net.au>

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From: johns@rd.scitec.com.au (John Saunders)
Subject: Re: pppd: Serial line is looped back.
Date: 1996/10/18
Message-ID: <54704o$7ch@mailhub.scitec.com.au>
X-Deja-AN: 190209172
references: <32665D9E.1D956D1@iinet.net.au>
organization: SCITEC LIMITED, Sydney, Australia.
newsgroups: aus.computers.linux