As I can see, pptp module is not included.
Stock kernel has pptp support included, but I think is not supported as module.
Perdita2000
Sent from my HTC Hero using XDA App
It seems I compiled it as a loadable kernel module.
Try write a command like this in a root shell (i.e. adb shell):
Code:
busybox insmod /system/lib/modules/tun.ko
Again I have no experience with VPN on android. If you tell me how I can test it myself (which program and how do I get the error), I can look into it.