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                        TANDBERG Gatekeeper User Manual  Trademarks and copyright    Copyright 1993-2005 TANDBERG ASA. All rights reserved.  This document contains information that is proprietary to TANDBERG ASA. No part of this publication  may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means,  electronically, mechanically, by photocopying, or otherwise, without the prior written permission of  TANDBERG ASA. Nationally and internationally recognized trademarks and tradenames ar
                    
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                        TANDBERG Gatekeeper User Manual  Environmental Issues    Thank you for buying a product which contributes to a reduction in pollution, and thereby  helps save the environment. Our products reduce the need for travel and transport and  thereby reduce pollution. Our products have either none or few consumable parts (chemicals,  toner, gas, paper). Our products are low energy consuming products.  TANDBERG’s Environmental Policy      TANDBERG’s Research and Development is continuously improving TAN
                    
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                        TANDBERG Gatekeeper User Manual  Operator Safety Summary    For your protection, please read these safety instructions completely before operating the  equipment and keep this manual for future reference. The information in this summary is  intended for operators. Carefully observe all warnings, precautions and instructions both on  the apparatus and in the operating instructions.     Warnings   Water and moisture - Do not operate the equipment under or near water - for  example near a bathtub,
                    
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                          Table Of Contents  TANDBERG Gatekeeper User Manual .......................................................................................i  Trademarks and copyright ......................................................................................................ii  Environmental Issues............................................................................................................. iii  Operator Safety Summary ...................................................................
                    
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                        TANDBERG Gatekeeper User Manual  4.1 Upgrading Using HTTP(S) ........................................................................................ 30  4.2 Upgrading Using SCP ............................................................................................... 31  5 Configuring the Gatekeeper ............................................................................................. 33  5.1 Status ....................................................................................
                    
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                          1 Introduction    This User Manual is provided to help you make the best use of your TANDBERG Gatekeeper.   A Gatekeeper is a central part of an H.323 infrastructure. It provides address translation and  controls access to the network for H.323 terminals, Gateways and MCUs. The Gatekeeper  also provides other services to the terminals, Gateways and MCUs such as bandwidth  management and locating Gateways.  TM  A Gatekeeper is also a key component of TANDBERG’s Expressway firewall traversal  so
                    
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                          2 Installation    Precautions:   Never install communication equipment during a lightning storm.   Never install jacks for communication cables in wet locations unless the jack is  specifically designed for wet locations.   Never touch uninstalled communication wires or terminals unless the communication  line has been disconnected at the network interface.   Use caution when installing or modifying communication lines.   Avoid using communication equipment (other than a cordless type) du
                    
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                        TANDBERG Gatekeeper User Manual   Do not place heavy objects directly on top of the Gatekeeper.    Do not place hot objects directly on top, or directly beneath the Gatekeeper.    Use a grounded AC power outlet for the Gatekeeper.   2.2  Mounting  The Gatekeeper comes with brackets for mounting in standard 19" racks.  Before starting the rack mounting, please make sure the TANDBERG Gatekeeper is placed  securely on a hard, flat surface.  1. Disconnect the AC power cable.  2. Make sure that th
                    
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                          2.5 Gatekeeper Initial Configuration  The TANDBERG Gatekeeper requires some configuration before it can be used. This must  be done using a PC connected to the serial port (Data 1).  The main thing that needs to be configured is the IP settings of the Gatekeeper. This includes  the IP address, the IP subnet mask, and the IP gateway. The Gatekeeper has to be  configured with a static IP address. Consult your network administrator for information on  which addresses to use.  To set the initial c
                    
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                        TANDBERG Gatekeeper User Manual  xConfiguration Gatekeeper AutoDiscovery command in section 5.2  for more information.  12. Reboot the Gatekeeper by typing the command xCommand boot to make your new  settings take effect.  13. Disconnect the serial cable.  NOTE  To secure the Gatekeeper you should disable HTTP, HTTPS, SSH and Telnet, relying on the  serial interface for management. If you need IP connectivity, it is recommended that you use  SSH or HTTPS.  NOTE  If you do not have an IP gateway,
                    
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                          3 Using the Gatekeeper     The Gatekeeper is used by H.323 terminals, Gateways and MCUs. These devices register  with the Gatekeeper and the Gatekeeper then provides address translation and controls  access to the network.   3.1  System Administration  To configure and monitor the TANDBERG Gatekeeper you can either use the web interface  or a command line interface. The command line interface is available over SSH and Telnet, or  through the serial port. The interface is the same using all thr
                    
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                        TANDBERG Gatekeeper User Manual  NOTE  Automatic discovery is a function that allows the Gatekeeper to reply to multicast Gatekeeper  discovery messages from the endpoint.  NOTE  If you have problems registering the endpoint, try turning on automatic discovery. Some  endpoints require automatic registration to be enabled.  NOTE  When URI dialing is used to discover an endpoint, the URI used is based on either the H.323  ID or the E.164 alias that the endpoint registered with. The local domain is
                    
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                          Remote zones can be configured through the web interface of the TANDBERG Gatekeeper  by navigating to Gatekeeper Configuration > Gatekeeper.  See Figure 1 for a screenshot of  the configuration.    Figure 1 Screenshot of the Adding a New Zone configuration  NOTE  When using a local zone prefix do not start the E.164 aliases with the same digits as the local  prefix. If you do this the Gatekeeper will strip the digits equal to the prefix from the alias  thinking it is a call from another zone. 
                    
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                        TANDBERG Gatekeeper User Manual  When a Gatekeeper receives a Location Request, if it cannot respond from its own  registration database, it will query all of its Alternates before responding. This allows the pool  of registrations to be treated as if they were registered with a single Gatekeeper.  The Alternate Gatekeepers can be configured within the web interface of the Gatekeeper by  navigating to Gatekeeper Configuration > Gatekeeper.  Up to five different alternates can be  configured.  Pl
                    
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                          3.5 Call Control  When an end-point wants to call another endpoint it presents the address it wants to call to  the Gatekeeper using a protocol knows as RAS. The Gatekeeper tries to resolve this address  and supplies the calling endpoint with information about the called endpoint. The destination  address can take several forms: IP address, H.323 ID, E.164 alias or a full H.323 URI.  Dialing by IP address is necessary when the destination endpoint is not registered with a  Gatekeeper or Border
                    
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