DirecPC uses a modem (analogue, ISDN, ...) or NIC (Ethernet, Token Ring) for uplink while using a satellite dish for downloading data. Your Internet connection is provided by DirecPC itself or you may use your existing ISP for dial-up connection.
Data is going from your computer via modem to DirecPC Internet service where data is routed to its final destination. On the way back DirecPC associates the packets (data) coming to your computer with different data in order to route them via satellite dish.
WinRoute configuration
First of all you must have all DirecPC software and components correctly installed. Then, go on to configure WinRoute according to your specific requirements.
You may choose either DirecPC dialer or WinRoute RAS for uplink. Using WinRoute you will benefit from the dial on demand feature, this will save you money on your bill.
1. Using (RAS line) for uplink
Go to menu Settings->Interface Table. You will see the RAS line interface (your modem) and DirecPC interface card.
Click on DirecPC interface card and go to "Properties". You will see two tabs - NAT and DirecPC.
3. Click on RAS interface and go to "Properties". Check ON "Perform NAT with IP address of the interface on all communication passing through". In RAS tab, select the connection you will use to connect to your ISP, then enter your user name and password.
Note! You have to UNCHECK "Use default gateway on remote network" in the properties of dial-up networking account created to connect to the ISP. Set this option in TCP/IP properties of your dial-up interface.
2. Using DirecPC dialer for uplink
You may use DirecPC's built-in dialer where available. However we recommend using WinRoute RAS line where possible.
To use DirecPC dialer:
Go to menu Settings->Interface Table. You will see RAS line interface (your modem) and DirecPC interface card
Click on DirecPC interface card and go to "Properties". You will see two tabs there - NAT and DirecPC.
3. Using Ethernet interface for uplink
Sometimes you might want to use the Ethernet Interface for uplink. This happens typically if uplink is realized over ISDN connection (and you have ISDN Router or modem) or V-SAT connection (dish with Ethernet adapter).
Go to the DirecPC interface card properties dialog.
Increasing Throughput:
You will probably experience slow speeds and incomplete file transfers from all clients passing through WinRoute. To correct this you will need to make a registry modification that will increase the TCP receive window. To enter the registry go to the start menu -> run, then type "regedit" from the text box.
Important: This must be performed on each computer behind WinRoute.
In Windows NT/2000:
Go to the Registry HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
Add (if it exists, edit it) an entry named "TcpWindowSize" (it is of type DWORD) in registry. Set its value to "BB80".
In Windows 95/98/ME:
Go to the Registry HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP.
Add (if it exists, edit it) an entry named "DefaultRcvWindow" (it is of type string) in registry. Set its value to "BB80".