[pptp-server] PoPToP works, then doesn't ?? Any ideas?

[Brian Aust]

Well I did finally get PoPToP running yesterday, or so i thought.  It worked
yesterday, but now when i try to connect today it fails!!  And absolutely
nothing has changed on the poptop server at all.  Plus, the messages log
looks different for the two connection atttempts (yesterday vs. today).

Here's the log from yesterday where it worked:
-------------------------------------------------------
Dec  7 14:01:08 BNYATALIE pptpd[3046]: CTRL: Client 24.25.7.203 control
connection started
Dec  7 14:01:08 BNYATALIE pptpd[3046]: CTRL: Starting call (launching pppd,
opening GRE)
Dec  7 14:01:08 BNYATALIE pppd[3047]: pppd 2.3.11 started by root, uid 0
Dec  7 14:01:08 BNYATALIE kernel: registered device ppp1
Dec  7 14:01:08 BNYATALIE pppd[3047]: Using interface ppp1
Dec  7 14:01:08 BNYATALIE pppd[3047]: Connect: ppp1 <--> /dev/pts/2
Dec  7 14:01:08 BNYATALIE kernel: PPP BSD Compression module registered
Dec  7 14:01:08 BNYATALIE pppd[3047]: CHAP peer authentication succeeded for
ameyers
Dec  7 14:01:09 BNYATALIE pppd[3047]: found interface eth0 for proxy arp
Dec  7 14:01:09 BNYATALIE pppd[3047]: local  IP address 10.1.1.69
Dec  7 14:01:09 BNYATALIE pppd[3047]: remote IP address 10.3.1.2
Dec  7 14:01:09 BNYATALIE pppd[3047]: CCP terminated by peer
Dec  7 14:01:09 BNYATALIE pppd[3047]: Compression disabled by peer.
Dec  7 14:03:13 BNYATALIE pppd[3047]: LCP terminated by peer
Dec  7 14:03:13 BNYATALIE pppd[3047]: Modem hangup
Dec  7 14:03:13 BNYATALIE pppd[3047]: Connection terminated.
Dec  7 14:03:13 BNYATALIE pppd[3047]: Connect time 2.1 minutes.
Dec  7 14:03:13 BNYATALIE pppd[3047]: Sent 52428 bytes, received 31847
bytes.
Dec  7 14:03:13 BNYATALIE pppd[3047]: Exit.
Dec  7 14:03:13 BNYATALIE pptpd[3046]: CTRL: Error with select(), quitting
Dec  7 14:03:13 BNYATALIE pptpd[3046]: CTRL: Client 24.25.7.203 control
connection finished
------------------------------------------------------

Now this worked fine, and 12 hours pass, and I try to connect just now.
Here's the messages file from 5 minutes ago:

--------------------------------------------------------
Dec  8 09:54:51 BNYATALIE pptpd[3632]: CTRL: Client 24.163.35.141 control
connec
tion started
Dec  8 09:54:51 BNYATALIE pptpd[3632]: CTRL: Starting call (launching pppd,
open
ing GRE)
Dec  8 09:54:51 BNYATALIE kernel: CSLIP: code copyright 1989 Regents of the
Univ
ersity of California
Dec  8 09:54:51 BNYATALIE kernel: PPP: version 2.3.7 (demand dialling)
Dec  8 09:54:51 BNYATALIE kernel: PPP line discipline registered.
Dec  8 09:54:51 BNYATALIE kernel: registered device ppp0
Dec  8 09:54:51 BNYATALIE pppd[3633]: pppd 2.3.11 started by root, uid 0
Dec  8 09:54:51 BNYATALIE pppd[3633]: Using interface ppp0
Dec  8 09:54:51 BNYATALIE pppd[3633]: Connect: ppp0 <--> /dev/pts/0
Dec  8 09:55:21 BNYATALIE pptpd[3632]: CTRL: Error with select(), quitting
Dec  8 09:55:21 BNYATALIE pptpd[3632]: CTRL: Client 24.163.35.141 control
connec
tion finished
Dec  8 09:55:21 BNYATALIE pppd[3633]: Modem hangup
Dec  8 09:55:21 BNYATALIE pppd[3633]: Connection terminated.
Dec  8 09:55:21 BNYATALIE pppd[3633]: Exit.
-----------------------------------------------------

Can anyone see what changed between yesterday and today to make this fail??
Differences I can see are that today uses "ppp0" instead of "ppp1"... and
that clearly it doesn't even get around to attempt the CHAP authentication.

Any ideas would really be welcome!

Thanks,
Brian R. Aust