Citrix WinView Application Notes Digi ISDN Products (Digi IMAC Bridge) (Digi PC-IMAC ) (Digi DataFire) This application note is for informational use only and Citrix makes no representations or warranties with respect to the contents or use of this document or of any of third-party products discussed within. May 31,1995 Citrix Systems 210 University Drive Suite 700 Coral Springs, FL 33071 (305) 755-0559 FAX (305) 341-6880 Overview: --------- This application note facilitates the configuration of Digi ISDN Products, the Digi IMAC Bridge, Digi PC-IMAC and the Digi DataFire, with Citrix "WinView for Networks". The Digi ISDN products provide remote ethernet network bridging over standard Basic Rate 2B+D ( 2 x 64Kbps Data Channels) ISDN lines. They are protocol independent, so they will bridge IPX, SPX, TCP/IP, NetBIOS, and NetBEUI. They transparently pass ethernet frames between their LAN port, and the LAN connected to the remote unit over the ISDN line. The Digi ISDN Products allow a remote PC or LAN access to a WinView server on the host LAN, or vice-versa. The two LAN's, or PC and LAN, will appear as one contiguous network. This allows the transparent use of the LanLink remote access product to attach to a WinView server, as if it were on the local LAN. the following configuration will be discussed in this document: A. External Digi IMAC to IMAC ethernet bridge for remote WinView access. Disclaimer: ----------- The scenarios described in this document have been tested by Citrix. Other variations to the scenarios described in this document may work, however they have not specifically been tested by Citrix. In order to recreate the configurations, you should use the specified revision levels of all software products described in this document and stay within the bounds of the features and functions described in this document. Please note that this application note is a living document and will be modified as new information and versions of the software described herein become available. Make sure you have the latest version of this document before you begin. The latest version is always available in the Citrix Forum on Compuserve. A. External Digi IMAC-to-IMAC ethernet bridge for remote WinView access. Requirements: ------------- Digi IMAC ISDN/MAC Layer Bridge on the remote and local side. ISDN lines installed at both the local and remote site Citrix "WinView for Networks" Application Server Software Installation: ------------- 1) Install the Digi IMAC bridge as per manual's installation section. 2) Proceed to follow the 'Sample Installation' section in the Digi IMAC manual 3) Install the WinView Application Server software as per the Citrix Installation Guide. 4) Configure a Citrix LanLink client as per the Citrix Lanlink User's Manual Configuration: -------------- The tested configuration used a copy of the Listen2 profile, which controls incoming ethernet traffic by using two B channels. When configuring a profile on the IMAC, the following settings gave the best performance (options are set via the IMAC's 'set profile' command): /FILTER_LOGIC=SOFT - maintains up to 2047 MAC address filter table /NUMBER_OF_CHANNELS=2 - use both channels for the bridging /CHANNEL=b1:b2 - use both B1 and B2 channels. Usage: ---------- 1) If the Digi IMAC Bridges are operating and the ISDN lines are active, the "remote" network should appear as if it is local. Depending on the Digi IMAC bridge equipment purchased, your bandwidth will be either 64kbps or 128kbps. Citrix Lanlink compression provides excellent performance connection over the bridge. 2) The IMAC bridges can be configured and managed remotely by any SNMP management system, or via TCP/IP rsh commands. 3) From a PC Client run the Lanlink program. From the LanLink main menu, Choose "Connect to AppServer", highlight the desired Appserver and press enter. Save the configuration,F4, From the Lanlink Main Menu select "Connect to and Appser", highlight the desired selection and press enter. A WinView Login prompt should appear momentarily. Notes: ------ The Digi IMAC Bridge products are an excellent way to access remote LAN's. Special features on the IMAC series Bridges allow connections to be initiated or dropped, transparently to users, giving the remote office a virtual presence on the central site LAN, while keeping "line charges at a minimum". In addition, LanLink greatly improves the performance of the ISDN Bridge because the execution of the applications is performed on the WinView server, only requiring screen updates, keystrokes, and mouse activity to be sent across the bridge. The majority of the network traffic will be between the WinView server and the Netware server which should be on the same local network. Problems: --------- There are no known problems when using Digi IMAC Series Bridge Products in conjunction with WinView for Networks Application Server software.