1\N"l:X COMMUNICATIONS SERVER Network Administrator's Guide )xy1og1ca] Copyright @ 1990 Xylogics, Inc. 166- 024- 000 Revision E November 1991 1\N-41:X COMMUNICATIONS SERVER Network Administrator's Guide 166-024-000 Revision E November 1991 Notice The information in this manual is subject to change without notice, and should not be construed as a commitment by Xylogics, Inc. Xylogics assumes no responsibility for any errors that may appear in this document. Annex, Annex II, Annex lie, Annexthree, and Annex 3 are trademarks of Xylogics, Inc. UNIX is a registered trademark of AT&T. Ethernet is a registered trademark of Xerox Corporation. IBM is a registered trademark of the International Business Machines Corporation. XENIX Is a trademark of Microsoft Corporation. LAT is a trademark of Digital Equipment Corporation. Postscript is a registered trademark of Adobe Systems Incorporated. Copyright© 1990 Xylogics, Inc. Printed in the USA. Contents Preface .................................................. xiii General . xiii Supported Version . xiv Printing Conventions . xiv Related Documents . xv Book A: Overview Chapter 1: Introduction to the Annex ....................... A-1 General . A-1 Annex Capabilities . A-2 Network Administrator (na) Utility . A-2 Command Line Interpreter (CLI) . A-3 Customizing the User Interface . A-3 Expedited Remote Procedure Call Daemon (erpcd) . A-3 Extensive Security System . A-3 Port Servers and Rotaries . A-4 UNIX Host-originated Connections.................................. A-5 Name Server Support . A-5 Network Management . A-6 Full Routing . A-6 Multi-protocol Support . A-7 Applications for the Annex . A-7 Connecting Terminals . A-7 Connecting Remote Hosts, Networks, and Annexes.................... A-8 Connecting PCs to the Network . A-8 Connecting X-windows Terminals to the Network . A-8 Connecting Modems . A-9 Connecting Printers . A-9 Connecting Hosts without a Network Interface . A-9 Performing Remote System Management . A-9 Using this Manual.................................................. A-10 Network Administrator's Guide Rev. E iii Contents Chapter 2: Network Protocols . A-11 General . A-11 Local Area Network Protocols . A-11 Ethernet/IEEE 802.3 Protocol . .. A-11 IEEE 802.5/lbken Ring Protocol . A-12 Hardware Addresses . A-12 TCP/IP Protocols . A-13 Internet Protocol Addressing . A-13 Network Address to Name 'Iranslation............................... A-13 Network Address to Hardware Address 'Iranslation . A-14 Network Classes . A-14 Subnet Addressing . A-15 Broadcast Addresses . A-16 Routing Services . A-16 Internet Trailer Packets . A-17 Local Area 'Iransport (LAT) Protocol . A-17 LAT Architecture . A-17 Service Advertisement . A-18 Group Codes . A-18 Book B: Configuration Procedures Chapter 1: Configuring the Annex . B-1 General . B-1 Configuring an Annex Using the na Utility . B-1 Annex Internet Addressing . B-4 The Internet Address ............................................. ,. B-4 The Broadcast Address . B-5 The Subnet Mask . B-5 Booting and Dumping . B-6 Setting the Preferred Load Host . B-6 Setting the Preferred Dump Host . B-7 Setting an Annex as a Load Server . B-1 Disable Broadcasting for Files during a Boot . B-8 Using SLIP for Booting and Dumping . B-8 iv Annex Communications Server Contents TFfP Loading Protocol (Operational Code) . B-8 Using Annex Security . B-9 Enabling Security . B-9 Setting Up Host-based Security . B-10 Local Virtual CLI Password . B-11 Annex Administrative Password . B-12 Using Name Servers................................................ B-13 Defining Name Servers............................................. B-14 Using the RWHO Protocol ......................................... B-15 Managing the Size of the Host Tobie . B-16 Minimum Uniqueness .............................................. B-17 Using Event Logging . B-17 Using the Time Server . B-18 Customizing the Annex Environment................................. B-19 Setting the CLI Prompt . B-20 Setting a Limit on Virtual CLI Connections . B-21 Setting the Message-of-the-day File . B-21 Using the RIP-listener . B-22 Setting the IP Encapsulation Type . B-22 Setting for a Token Ring Network.................................... B-22 Chapter 2: Configuring Ports . B-23 General . B-23 General Issues on Configuring Ports . B-23 Configuring Ports Using the na Program . B-23 Port Mode ........................................................ B-27 Port Security . B-28 Configuring Ports for Torminals . B-30 CLI Ports . ..