[pptp-server] pptpd doesn't release then IP

[Patrick Lin]

hi,

i am running pptp

on my ifconfig listing i have :

ppp0      Link encap:Point-to-Point Protocol
          inet addr:192.168.6.62  P-t-P:192.168.6.1 
Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:10698 errors:9 dropped:0 overruns:0 frame:0
          TX packets:15397 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:10
 
ppp1      Link encap:Point-to-Point Protocol
          inet addr:192.168.6.62  P-t-P:192.168.6.3 
Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:2201 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1764 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:10
 
ppp2      Link encap:Point-to-Point Protocol
          inet addr:192.168.6.62  P-t-P:192.168.6.2 
Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:9213 errors:9 dropped:0 overruns:0 frame:0
          TX packets:9459 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:10

on my ps -auxww |grep pptp i have

root     21089  0.1  0.3  1180  504 ?        S    09:06   0:14 pptpd
[xxx.xxx.xxx.xxx]
root     21090  0.0  0.7  1560  944 ?        S    09:06   0:00
/usr/sbin/pppd local 115200 192.168.6.62:192.168.6.1
root     20664  0.0  0.5  1336  660 ?        S    Mar16   0:00
/usr/local/sbin/pptpd

but before in the day 
someone connect to vpn and use the ppp1 and ppp2
after disconection this intefaces is still  up
and of course in the route table i have this IP
so when someone elese try to connect , the connection work Well
the new connection have :
ppp3      Link encap:Point-to-Point Protocol
          inet addr:192.168.6.62  P-t-P:192.168.6.3 
Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:2201 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1764 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:10

and of course nothing work to acces any network

any help or tips on how to fixe that

thanks
regards,

patrick

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