ISDNUTILS package, Problem with immediate hangup

[Torsten Hilbrich <Torsten.Hilbrich@gmx.net>]

I have a problem with the isdnutils 2.1beta1-20 package.  Using the
following script (some phone numbers hidden) I was able to login to my
provider, after a final "route add default ippp0" after connecting
using ping my network connections is available and stable:

   LOCAL_NUMBER="xxxxxxx"
   REMOTE_NUMBER="yyyyyyy" 
   LOCAL_IP="10.0.0.1"    
   REMOTE_IP="10.0.0.2"   
   DEVICE="ippp0"
   ISDNCTRL="isdnctrl"
   $ISDNCTRL addif  $DEVICE      
   $ISDNCTRL addphone $DEVICE out $REMOTE_NUMBER  
   $ISDNCTRL eaz $DEVICE $LOCAL_NUMBER            
   $ISDNCTRL l2_prot $DEVICE hdlc      		
   $ISDNCTRL l3_prot $DEVICE trans     		
   $ISDNCTRL encap $DEVICE syncppp     		
   $ISDNCTRL huptimeout $DEVICE 600    		
   $ISDNCTRL chargehup $DEVICE off     		
   $ISDNCTRL secure $DEVICE on         		

   ifconfig $DEVICE $LOCAL_IP pointopoint $REMOTE_IP metric 1 -arp
   route add default dev $DEVICE

   ipppd user <my name> remotename <my provider> \
           noipdefault \
           ipcp-accept-remote \
           -vjccomp -ac -pc \
           -detach \
           mru 1524 \
           -bsdcomp \
           debug \
           /dev/ippp0 &

Now I try to achieve the same using the /etc/init.d/isdnutils script.
I have created the device.ippp0 and ipppd.ippp0 files in /etc/isdn and
configured them according to the above options.  But I have still the
problem, that after establishing my connection the ipppd is
terminating my connection.  I tried with both nodetach and detach
options.  If you are interested in the complete options files please
request them via email.

The ipppd seems to behave as the connection is immediatly (well 7-8
seconds aftrer connection) hangup (like with the isdnctrl hangup ippp0
command).  Here is a part of my daemon.log

Apr 20 20:20:39 marvin ipppd[844]: rcvd [0][IPCP ConfAck id=0x2 <addr xxx.xxx.xxx.xxx> <compress VJ 0f 00>]
Apr 20 20:20:39 marvin ipppd[844]: local  IP address xxx.xxx.xxx.xxx
Apr 20 20:20:39 marvin ipppd[844]: remote IP address yyy.yyy.yyy.yyy
Apr 20 20:20:39 marvin ipppd[844]: rcvd [0][CCP ConfRej id=0x2]
Apr 20 20:20:46 marvin ipppd[844]: Modem hangup
Apr 20 20:20:46 marvin ipppd[844]: Connection terminated.
Apr 20 20:20:46 marvin ipppd[844]: taking down PHASE_DEAD link 0, linkunit: 0
Apr 20 20:20:46 marvin ipppd[844]: sent [0][LCP TermReq id=0x2 6c 69 6e 6b 20 63 6c 6f 73 65 64]
Apr 20 20:20:46 marvin ipppd[844]: LCP is down
Apr 20 20:20:46 marvin ipppd[844]: link 0 closed , linkunit: 0
Apr 20 20:20:46 marvin ipppd[844]: reinit_unit: 0 file.

Does anybody have any idea what could be the reason for this hangup?  

BTW: The hangup is not a result of the failed ccp negotiation.  The
message prior to the hangup are exactly the same as in the working
setup.

Thanks,

        Torsten


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