Lesson 1: Remote Access Fundamentals
Windows Server 2003 provides two main types of remote access methods: dial-up and VPN. For each remote access type, there are several authentication and encryption protocols to choose from. You will have to choose the remote access type and security protocols based on the clients that will be connecting to your internal network and based on your existing infrastructure. This lesson will describe the two remote access methods and the various encryption and authentication protocols to allow you to make educated recommendations.
Remote Access Methods :
There are two primary methods for connecting remote users to a private network: dialup networking and virtual private networking. Dial-up networking enables a remote access client to establish a temporary dial-up connection to a physical port on a remote access server by using the service of a telecommunications provider, such as analog phone lines, Integrated Services Digital Network (ISDN), or X.25. The most common use of dial-up networking is that of a dial-up networking client that dials the phone number of a modem attached to the remote access server. This establishes a circuit
between the two devices.
Virtual private networking is the creation of an encrypted, authenticated point-to-point connection across a public network such as the Internet. A VPN client uses special network protocols called tunneling protocols to make a virtual call to a virtual port on a VPN server.
VPN Protocols :
Windows Server 2003 supports two VPN protocols: PPTP and L2TP. In most circumstances,either protocol will work equally well. They both provide similar levels of privacy and data integrity because they support the same authentication and encryption standards. They primarily differ in stability and compatibility. PPTP is more mature, but it is not an Internet standard. L2TP is relatively new, but it might be supported by a wider variety of non-Microsoft clients because it is an Internet standard.
Windows Server 2003 provides two main types of remote access methods: dial-up and VPN. For each remote access type, there are several authentication and encryption protocols to choose from. You will have to choose the remote access type and security protocols based on the clients that will be connecting to your internal network and based on your existing infrastructure. This lesson will describe the two remote access methods and the various encryption and authentication protocols to allow you to make educated recommendations.
Remote Access Methods :
There are two primary methods for connecting remote users to a private network: dialup networking and virtual private networking. Dial-up networking enables a remote access client to establish a temporary dial-up connection to a physical port on a remote access server by using the service of a telecommunications provider, such as analog phone lines, Integrated Services Digital Network (ISDN), or X.25. The most common use of dial-up networking is that of a dial-up networking client that dials the phone number of a modem attached to the remote access server. This establishes a circuit
between the two devices.
Virtual private networking is the creation of an encrypted, authenticated point-to-point connection across a public network such as the Internet. A VPN client uses special network protocols called tunneling protocols to make a virtual call to a virtual port on a VPN server.
VPN Protocols :
Windows Server 2003 supports two VPN protocols: PPTP and L2TP. In most circumstances,either protocol will work equally well. They both provide similar levels of privacy and data integrity because they support the same authentication and encryption standards. They primarily differ in stability and compatibility. PPTP is more mature, but it is not an Internet standard. L2TP is relatively new, but it might be supported by a wider variety of non-Microsoft clients because it is an Internet standard.
