Does Windows SBS 2003 R2 support hardware firewall devices?
Windows SBS 2003 R2 fully supports external hardware firewall devices. Windows SBS 2003 R2 can automatically detect and configure many Universal Plug and Play (UPnP) devices by using the Configure E-Mail and Internet Connection Wizard. If your hardware firewall device does not support UPnP, you can still use the device with your server. Consult the documentation that came with the device to manually configure firewall settings.