本文发表在 rolia.net 枫下论坛只接受一个VPN连接的很简单,quote from Windows XP Pro help and support centre：
By creating an incoming connection, a computer can act as a remote access server if it is running Windows 2000 Professional, Windows XP Professional, or Windows XP Home Edition, or if it is a stand-alone computer running Windows 2000 Server. You can configure an incoming connection to accept the following connection types: dial-up (modem, ISDN, X.25), virtual private network (VPN) (PPTP, L2TP), or direct (serial, infrared). On a computer running Windows 2000 Professional, Windows XP Home Edition, or Windows XP Professional, an incoming connection can accept up to three incoming calls, up to one of each of these types.
The Multilink feature automatically configures multiple modems or ISDN adapters for use with incoming dial-up connections. For more information on Multilink, see Configuring multiple device dialing.
When you create a connection, the users that can connect to your incoming connection and their network protocols are selected. Each user that connects to an incoming connection must have established a local user account. For more information about user settings such as name, password, and callback rights, see To grant incoming connection access rights to your computer. For more information about configuring your connection for the TCP/IP network protocol, see To configure an incoming connection to use TCP/IP. For more information about configuring your connection for the IPX network protocol, see To configure an incoming connection to use IPX. The IPX/SPX protocol is not available on Windows XP 64-Bit Edition.
For information about creating an incoming connection, see To make an incoming network connection.
Notes
You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure.
Windows XP Professional can accept three incoming connections at a time, provided they are different types. For example, there can be three simultaneous connections, one each, from dial-up, VPN, and a direct connection. If another incoming connection attempt is made with the same type, such as two dial-up connections, the second connection request is rejected.
Users do not need to use incoming connections to allow access to shared resources, such as files and printers, over a local area network. In order to enable shared access to resources on the local computer, you must enable file and print sharing, share the resources, and then set the appropriate permissions. For information about sharing a folder, see To share a folder or drive with other people.
Multilinking is automatically enabled in Windows XP Home Edition and Windows XP Professional.更多精彩文章及讨论，请光临枫下论坛 rolia.net
By creating an incoming connection, a computer can act as a remote access server if it is running Windows 2000 Professional, Windows XP Professional, or Windows XP Home Edition, or if it is a stand-alone computer running Windows 2000 Server. You can configure an incoming connection to accept the following connection types: dial-up (modem, ISDN, X.25), virtual private network (VPN) (PPTP, L2TP), or direct (serial, infrared). On a computer running Windows 2000 Professional, Windows XP Home Edition, or Windows XP Professional, an incoming connection can accept up to three incoming calls, up to one of each of these types.
The Multilink feature automatically configures multiple modems or ISDN adapters for use with incoming dial-up connections. For more information on Multilink, see Configuring multiple device dialing.
When you create a connection, the users that can connect to your incoming connection and their network protocols are selected. Each user that connects to an incoming connection must have established a local user account. For more information about user settings such as name, password, and callback rights, see To grant incoming connection access rights to your computer. For more information about configuring your connection for the TCP/IP network protocol, see To configure an incoming connection to use TCP/IP. For more information about configuring your connection for the IPX network protocol, see To configure an incoming connection to use IPX. The IPX/SPX protocol is not available on Windows XP 64-Bit Edition.
For information about creating an incoming connection, see To make an incoming network connection.
Notes
You must be logged on as an administrator or a member of the Administrators group in order to complete this procedure. If your computer is connected to a network, network policy settings may also prevent you from completing this procedure.
Windows XP Professional can accept three incoming connections at a time, provided they are different types. For example, there can be three simultaneous connections, one each, from dial-up, VPN, and a direct connection. If another incoming connection attempt is made with the same type, such as two dial-up connections, the second connection request is rejected.
Users do not need to use incoming connections to allow access to shared resources, such as files and printers, over a local area network. In order to enable shared access to resources on the local computer, you must enable file and print sharing, share the resources, and then set the appropriate permissions. For information about sharing a folder, see To share a folder or drive with other people.
Multilinking is automatically enabled in Windows XP Home Edition and Windows XP Professional.更多精彩文章及讨论，请光临枫下论坛 rolia.net