Windows 95 Dial-Up Networking Upgrade 1.4

Windows 95 Dial-Up Networking Upgrade 1.4 offers you a convenient tool that provides additional features for the DUN components that were first introduced in Windows 95. The DUN 1.4 release includes all of the features of all previous DUN releases, as well as those that are included in the Integrated Services Digital Network (ISDN) version 1.1 release. DUN 1.4 features include PPTP client support, 128-bit encryption, support for internal ISDN adapters, multilink support, and connection-time scripting to automate non-standard login connections. The DUN 1.4 upgrade can be applied to any version of Windows 95. However, you cannot install the Windows 95 version of this upgrade on any other version of Windows.

Major Features:

1.  ISDN Support: 
   • MSDUN includes the support for internal ISDN adapters that was previously delivered in the ISDN 1.1 Accelerator Pack. To assist in the setup process, an ISDN Configuration Wizard is automatically installed in the Start menu under Start>Programs>Accessories>ISDN Tools.
2. Multilink Support: 
   • Multilink support enables your computer to use two communications ports as if they were a single port of twice the bandwidth. Multilink is enabled from the Properties page of any connection icon in the Dial-Up Networking folder.
3. Scripting:
   • Some Internet Service Providers require a terminal interaction with the user at the start of a dial-up connection. The Scripting feature included in this Dial-Up Networking upgrade allows you to automate this interaction. Scripting is enabled from the Properties page of anyconnection icon in the Dial-Up Networking folder.

4. PPTP Client

   • PPTP Tunneling Windows Dial-Up Networking uses the Internet standard Point-to-Point Protocol (PPP) to provide a secure, optimized multiple-protocol network connection over dialed telephone lines. PPTP adds the ability to treat the Internet as a point-to-point Dial-Up Networking connection. All data sent over this connection can be encrypted and compressed, and multiple network level protocols (TCP/IP, NetBEUI, and IPX) can be run concurrently. Windows NT Domain Login level security is preserved even across the Internet. PPTP can also be used to connect to an Intranet that is otherwise isolated from the Internet, even if this same Intranet has Internet address space conflicts.
   • PPTP appears as new modem type (Virtual Private Networking Adapter) that can be selected when setting up a connection in the Dial-Up Networking folder. The VPN Adapter type does not appear elsewhere in the system. Since PPTP encapsulates its data stream in the PPP protocol, the VPN requires a second dial-up adapter. This second dial-up adapter for VPN is added during the installation phase of the Upgrade in addition to the first dial-up adapter that provides PPP support for the analog or ISDN modem.
   • PPTP Connections: The "Make a New Connection" wizard (in the Dial-Up Networking folder) will guide you through the steps needed to create connection icons for either normal dial-up (modem) calls or PPTP (virtual private network) calls. You indicate use of PPTP by selecting VPN rather than a modem as your device type.
   • Dial-up PPTP Connections: The most typical application for PPTP involves a dial-up PPP connection to the Internet followed by a separate PPTP connection to a remote tunnel server. This "two call" sequence requires two connection icons in the Dial-Up Networking folder, and two "dialing" actions by the user. The results of a successful tunnel over the Internet are two network connections on your PC: one to the Internet, and one to the target network served by the tunnel server.
   • LAN-based PPTP Connections
   • A second application for PPTP involves a tunnel over a LAN to which your PC is already attached. In this case, only a single connection icon is required, and only a single "dialing" action is used to initiate the tunnel. Under this scenario, it is not necessary to have a Dial-Up Networking connection to the Internet to support PPTP. The ability to route packets correctly to the PPTP tunnel server over an IP network is the only requirement for a PPTP connection.
5. Per-Connection Encryption Settings
   • The DUN 1.4 upgrade adds the ability to require encryption for a specific connection. A checkbox on the Server tab of the connection's property page has been added, allowing you to require encryption for a successful connection. If the server proposes 40-bit encryption, such a client would respond by requesting 128-bit encryption. A 128-bit capable server would accept the client's request. Note that a server which is capable of only 40-bit encryption would not be able to accept a client request for 128-bit encryption. A connection request of this type would fail.
6. Other Features
   
   • Limited server functionality for a dialup Point to Point IP connection is enabled.
   • Additional information is available to the connection status display. You can click "Details" after getting connected and see what type of authentication was negotiated and whether data encryption, software compression, or multilink was negotiated.
   • You can turn on an improved PPP logging option on a per connection basis. Results are logged to PPPLOG.TXT in your Windows directory.

Enhancements:

• 128-bit encryption is supported with the DUN 1.4 upgrade.
• The DUN 1.4 upgrade improves the stability of PPTP connections.
• A year 2000 fix for the Dynamic Host Configuration Protocol (DHCP) client has been included in the DUN 1.4 upgrade.

Requirements: Windows 95