Gateway/routing Issue Powerconnect 6248

Hi,

i have, in my opinion, a strange routing issue. We have an new PC 6248 Switch and configured the Switch with  Vlan1 for mangement (10.49.108.0/25 Interface 10.49.108.1 Port 47) and  Vlan 10 for our internal net (10.49.24.0/23 Interface 10.49.25.11 Port 1 - 36). We have enabled routing for the VLAN and configured a route IP Range 10.49.69.0 Sub 255.255.255.0 GW10.49.24.5. Our global Gateway is the 10.49.24.5. When i plug in the cable on Port 1 i can Ping the VLan10 Ip adress 10.49.25.11. Erverything seems to be fine. No cames the strange thing. After i plugged in the cable on port 1 the network traffic try to connect to internet or any other internal subnet through the Gateway 10.49.25.11. At all clients i use our global gateway 10.49.24.5. When i make a tracert to a internet site the first hop is the IP 10.49.25.11. I have checked my configuration a couple of times but i can't find a the issue. Have anyone have an idea?

Thanks a lot

Greets from Stuttgart Germany

Ruediger