> >I try to establish vpn connection to my provider via pppd 
> >and pptp and I get that
> >message from pppd:
> >
> ># pppd call corbina
> >.......
> >CHAP authentication succeeded
> >.......
> >Couldn't set interface address: Address 89.178.99.0 already exists
> >local  IP address 89.178.99.0
> >remote IP address 195.14.40.9
> >primary   DNS address 195.14.50.1
> >
> >Does anybody have an idea how it can be solved and what 
> >does it mean?

> What does your ppp configuration file look like? What is
> the output of ifconfig -a before and after?

ifconfig -a after:

# ifconfig -a
ex0: 
flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> 
mtu 1500
         capabilities=3f00<IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx,TCP4CSUM_Tx,UDP4CSUM_Rx,UDP4CSUM_Tx>
         enabled=3f00<IP4CSUM_Rx,IP4CSUM_Tx,TCP4CSUM_Rx,TCP4CSUM_Tx,UDP4CSUM_Rx,UDP4CSUM_Tx>
         address: 00:10:4b:67:87:27
         media: Ethernet autoselect (100baseTX 
full-duplex)
         status: active
         inet 10.239.17.213 netmask 0xffff0000 broadcast 
10.239.255.255
         inet6 fe80::210:4bff:fe67:8727%ex0 prefixlen 64 
scopeid 0x1
ex1: 
flags=8a63<UP,BROADCAST,NOTRAILERS,RUNNING,ALLMULTI,SIMPLEX,MULTICAST> 
mtu 1500
         address: 00:60:98:ef:e3:5d
         media: Ethernet 100baseTX
         status: active
         inet 192.168.0.11 netmask 0xffffff00 broadcast 
192.168.0.255
         inet6 fe80::260:98ff:feef:e35d%ex1 prefixlen 64 
scopeid 0x2
lo0: flags=8009<UP,LOOPBACK,MULTICAST> mtu 33192
         inet 127.0.0.1 netmask 0xff000000
         inet6 ::1 prefixlen 128
         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
ppp0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 
1400
         inet6 fe80::210:4bff:fe67:8727%ppp0 ->  prefixlen 
64 scopeid 0x4


ifconfig -a before is the same except ppp0 not present.

I do not remember exact ppp options, I'll send them later.

They are something like:

nodeflate
nobsdcomp
noauth
pty "pptp xx.xx.xx.xx --nolaunchpppd"
connect sh -c 'true'
name dilmah
remotename PPTP
ipparam corbina