[clue-tech] Troubleshooting ppp.

[Dennis J Perkins]

On Wed, 2010-01-27 at 20:26 -0700, David L. Anselmi wrote:
> Anyone know how to troubleshoot ppp (Jim Ockers)?
> 
> I have a machine using ppp.  After an upgrade ppp disconnects almost immediately (log below). 
> Except for the length of connection the log looks the same as a successful session.
> 
> I did do some upgrades a few days after the previous successful session.  Relevant changes seem to be:
> 
> - lrzsz (shouldn't be using any *modem protocol for this connection)
> 
> - libpcap and netbase (dependecies of Debian's ppp package)
> 
> There aren't any bugs that seem relevant and ppp itself did not get upgraded.
> 
> This happens to be using Juno's service, how do I tell whether something has changed on their end?
> 
> Jan 24 17:12:03 rocket pppd[1856]: pppd 2.4.4 started by root, uid 0
> Jan 24 17:12:04 rocket chat[1858]: abort on (ERROR)
> Jan 24 17:12:04 rocket chat[1858]: abort on (BUSY)
> Jan 24 17:12:04 rocket chat[1858]: abort on (NO CARRIER)
> Jan 24 17:12:04 rocket chat[1858]: abort on (NO DIALTONE)
> Jan 24 17:12:04 rocket chat[1858]: report (CONNECT)
> Jan 24 17:12:04 rocket chat[1858]: send (ATZ^M)
> Jan 24 17:12:04 rocket chat[1858]: expect (OK)
> Jan 24 17:12:04 rocket chat[1858]: ATZ^M^M
> Jan 24 17:12:04 rocket chat[1858]: OK
> Jan 24 17:12:04 rocket chat[1858]:  -- got it
> Jan 24 17:12:04 rocket chat[1858]: send (ATDT303-357-1145^M)
> Jan 24 17:12:04 rocket chat[1858]: timeout set to 60 seconds
> Jan 24 17:12:04 rocket chat[1858]: expect (CONNECT)
> Jan 24 17:12:04 rocket chat[1858]: ^M
> Jan 24 17:12:35 rocket chat[1858]: ATDT303-357-1145^M^M
> Jan 24 17:12:35 rocket chat[1858]: CONNECT
> Jan 24 17:12:35 rocket chat[1858]:  -- got it
> Jan 24 17:12:35 rocket chat[1858]: send ()
> Jan 24 17:12:35 rocket pppd[1856]: Serial connection established.
> Jan 24 17:12:35 rocket pppd[1856]: Using interface ppp0
> Jan 24 17:12:35 rocket pppd[1856]: Connect: ppp0 <--> /dev/modem
> Jan 24 17:12:37 rocket pppd[1856]: CHAP authentication succeeded:
> Jan 24 17:12:37 rocket pppd[1856]: CHAP authentication succeeded
> Jan 24 17:12:37 rocket kernel: [  614.965250] PPP BSD Compression module registered
> Jan 24 17:12:37 rocket kernel: [  614.991864] PPP Deflate Compression module registered
> Jan 24 17:12:37 rocket pppd[1856]: local  IP address 63.18.32.60
> Jan 24 17:12:37 rocket pppd[1856]: remote IP address 63.3.8.2
> Jan 24 17:12:37 rocket pppd[1856]: primary   DNS address 64.136.52.73
> Jan 24 17:12:37 rocket pppd[1856]: secondary DNS address 64.136.44.73
> Jan 24 17:12:38 rocket pppd[1856]: Terminating on signal 15
> Jan 24 17:12:38 rocket pppd[1856]: Connect time 0.1 minutes.
> Jan 24 17:12:38 rocket pppd[1856]: Sent 240 bytes, received 298 bytes.
> Jan 24 17:12:38 rocket pppd[1856]: Connection terminated.
> Jan 24 17:12:39 rocket pppd[1856]: Exit.
> 
> Thanks!
> Dave
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I haven't used ppp since 1999.  Is this a log file or a snapshot of what
was on the screen?  I'm guessing this is a log.  The only unusual thing
I see in the log is the TERM signal.  

I don't think there is any way to know why you lose a connection on the
other side of the modem... bad phone line, bad connection, something at
Juno.  Is there another ppp site you can try?