weird pptp local IP address

I set up a PPTP server on a AWS machine, following this instructions

https://gist.github.com/aioutecism/2638bb9eaf9ffc13348c

i used this address

localip 10.0.0.1
remoteip 10.0.0.100-200

I can connect to this pptp server fine from any WIN machine , and get the correct LOCAL IP address, but when I set up the PPTP client in my ROS is get local address 192.168.89.1 , no matter what I do setup in th conf file.

ps, I have other commecrcial VPN services setup on the ROS and they get the address fine.

here its on the ROS
vpn error.PNG
here on the win7 machine
win vpn.PNG