Hello Holger, On Fri, 23 Jul 2010 21:38:36 +0800, "Holger Hans Peter Freyther" <holger(a)freyther.de> wrote: I have not ported the TUN calls yet. My last try for OpenBSC plus GPRS was in a Linux VM, however I had problems there with the TUN interface. I could see outgoing packets with proper NAT translation (the DNS queries from the phone) and I could also see the DNS replies "outside" the VM but they never got through to the TUN interface. Maybe its a problem related to the VM, but after this experience I decided to wait playing with the TUN interface on Cygwin because it probably makes sense to have a running reference system first. BTW, anyone having OpenBSC plus GPRS running on MacOS X ? Thats the closest to Unix I have here besides a VM. Best regards, Dieter -- Dieter Spaar, Germany spaar(a)mirider.augusta.de