Snom manual Snom 4S NAT Filter Version

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snom 4S NAT Filter Version 2.11

© 2004-2005 snom technology Aktiengesellschaft. All Rights Reserved.

This document is supplied by snom technology AG for information purposes only to licensed users of the snom 4S NAT filter and is supplied on an “AS IS” basis, that is, without any warranties whatsoever, express or implied.

Information in this document is subject to change without notice and does not represent any commitment on the part of snom technology AG. The software described in this document is furnished under a license agreement and may be used only in accordance with the terms of that license agreement. It is against the law to copy or use this software except as specifically allowed in the license. No part of this document may be reproduced, republished or retransmitted in any form or by any means whatsoever, whether electronically or mechanically, including, but not limited to, by way of photocopying, recording, information recording or through retrieval systems, without the express written permission of snom technology AG.

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Contents Snom 4S NAT Filter Admin Manual Snom 4S NAT Filter Version Table of Contents Snmp Overview Features ApplicationsSnom technology AG Overview Architecture NAT Filter and SIPNAT Symmetrical RTP Signalling SIPHow does NAT work? Media RTP Classification of User AgentsProbing Media Paths Role of the NAT FilterOptimizing the Media Path for Symmetrical NATSBC Behaviour RegisteringRTP Relay Snom technology AG Scaling and Redundancy NATDetecting the right NAT Filter STUN/ICE-Aware User Agents Requirements on User AgentsNon NAT-Aware User Agents Defining the Maximum Session Time Architecture Installation WindowsInstallation Snom technology AG Installation Snom technology AG Linux Rpm -ihv snomnatf-2.10.*.rpm Installation Logging Port BindingStandard Port Random Port System Settings LoggingPreparing Recovery General Outound ProxyMedia Relay Media PortsPort Budgets Controlling RoutingMultiple 2xx Handling Maximum Packet Size ChallengingTrusted Addresses Removing Headers Silence SuppressionConnection Oriented Media Clir Addresses Codec ControlWeb Server Integration Timeout Settings Register TimeoutsCall Timeouts Security Settings Snom technology AG Outbound Proxy List System Information Server LogTrace Call History Current Ports Currently Handled UA Memory StatisticsConfiguration Web Server Integration Authentication Interface to the Web ServerSnom technology AG Web Server Integration Registration Call Initiation Snom technology AG Call Termination Snom technology AG Web Server Integration Setup of the SBC Setup of the ToolsAvailable OID OIDSnom technology AG Snmp Checklist for Installation Checklist for Installation Reader‘s Feedback Snom technology AG All rights reserved