[2473] in linux-net channel archive
pppd: Serial line is looped back.
daemon@ATHENA.MIT.EDU (Bill Hogan)
Fri Apr 12 15:38:55 1996
Date: Fri, 12 Apr 96 12:10 PDT
From: Bill Hogan <bhogan@bedlam.rahul.net>
To: Nuno Serrenho <adrenlin@ki.net>
Cc: linux-ppp@vger.rutgers.edu, linux-net@vger.rutgers.edu
In-Reply-To: <Pine.LNX.3.92.960411174749.168B-100000@stoned.ki.net>
Reply-To: bhogan@rahul.net
Nuno Serrenho writes:
> Lately, I've been getting a strange error with pppd:
>
> Apr 11 05:05:25 stoned diald[160]: Running pppd (pid = 1103).
> Apr 11 05:05:25 stoned pppd[1103]: pppd 2.2.0 started by root, uid 0
> Apr 11 05:05:25 stoned pppd[1103]: Using interface ppp0
> Apr 11 05:05:25 stoned pppd[1103]: Connect: ppp0 <--> /dev/cua3
> Apr 11 05:05:29 stoned pppd[1103]: Serial line is looped back.
> Apr 11 05:05:29 stoned pppd[1103]: Connection terminated.
> Apr 11 05:05:29 stoned pppd[1103]: Exit.
>
> A "normal" run looks like this:
>
> Apr 11 05:06:13 stoned diald[160]: Running pppd (pid = 1126).
> Apr 11 05:06:13 stoned pppd[1126]: pppd 2.2.0 started by root, uid 0
> Apr 11 05:06:13 stoned pppd[1126]: Using interface ppp0
> Apr 11 05:06:13 stoned pppd[1126]: Connect: ppp0 <--> /dev/cua3
> Apr 11 05:06:16 stoned pppd[1126]: local IP address 205.150.102.200
> Apr 11 05:06:16 stoned pppd[1126]: remote IP address 205.150.102.1
>
> Does anyone have any idea what "serial line is looped back." means? Is this
> a problem on my end or the remote end? Nothing changes between the two
> tries above, they're only about 30 seconds apart, so I can't figure out what
> could be wrong.
>
Well, I've been lurking for weeks waiting for the answer to this
wuation, so I guess you missed the great the great explanation Al
Longyear posted the other day (I have forwarded it to you under
separate cover), but I took the gist of it to be that "serial line
looped back" almost always means that the PPP daemon isn't (or is no
longer) running on the remote computer.
Bill
