I am experiencing very slow backup performance when initiating a full system backup between the Commserve which exists on the inside network and our VPN server which exists in a DMZ. When performing a full system backup on a system within the inside network, performance is in the average range of 150gb/Hr. All servers have gigabit NIC cards, all running windows server 2003 R2 Standard. The only difference between the inside to inside and inside to DMZ backups is that the connection speed is limited to 100mb instead of gig on the inside network. The backup job for this VPN server averages 0.20gb/Hr and takes days to complete compared to 15-20 minutes maximum for the inside network servers. The firewall configuration utility has been configured properly on both the CommServe and the VPN server as well. I can sit there with the network guy here and watch the traffic in the DMZ and it just sits at around 1mb/sec the entire time, we are kinda stumped as to why it is so slow. Any ideas or suggestions would be greatly appreciated.