On Nov 24, 2008, at 11:31 PM, "Germán Andrés Pulido F." <gpulido at gtscolombia.c om> wrote: > Thanks everyone for your help. I still cannot guess what the problem > is with the rebooting of the server, but I'm currently reading about > openvpn, it seems to be the best solution for my issue. There have been some show stopper bugs in Xen with regard to networking. Maybe the handling of a large volume of GRE packets in your VM has hit one of those. Personnally I would give the free ESXi server a go and see how that works it's network handling is more mature. -Ross