TECHNICAL REPORT TR-124 Functional Requirements for Broadband Residential Gateway Devices Issue: 1.0 Issue Date: December 2006 © The Broadband Forum. All rights reserved. Functional Requirements for Broadband Residential Gateway Devices TR-124 Notice The Broadband Forum is a non-profit corporation organized to create guidelines for broadband network system development and deployment. This Technical Report has been approved by members of the Forum. This document is not binding on the Broadband Forum, any of its members, or any developer or service provider. This document is subject to change, but only with approval of members of the Forum. This document is provided "as is," with all faults. Any person holding a copyright in this document, or any portion thereof, disclaims to the fullest extent permitted by law any representation or warranty, express or implied, including, but not limited to, (a) any warranty of merchantability, fitness for a particular purpose, non-infringement, or title; (b) any warranty that the contents of the document are suitable for any purpose, even if that purpose is known to the copyright holder; (c) any warranty that the implementation of the contents of the documentation will not infringe any third party patents, copyrights, trademarks or other rights. This publication may incorporate intellectual property. The Broadband Forum encourages but does not require declaration of such intellectual property. For a list of declarations made by Broadband Forum member companies, please see www.broadband-forum.org. December 2006 © The Broadband Forum. All rights reserved. 2 Functional Requirements for Broadband Residential Gateway Devices TR-124 Issue History Issue Number Issue Date Issue Editor Changes 1.0 December 2006 Jaime Fink, 2Wire Original Jack Manbeck, Texas Instruments Technical comments or questions about this document should be directed to: Editor: Jaime Fink 2Wire [email protected] Jack Manbeck Texas [email protected] Instruments WG Chairs Greg Bathrick PMC Sierra Heather Kirksey Motive December 2006 © The Broadband Forum. All rights reserved. 3 Functional Requirements for Broadband Residential Gateway Devices TR-124 Table of Contents 1 Purpose..................................................................................................................................... 8 2 Scope ........................................................................................................................................ 8 2.1 Definitions....................................................................................................................... 9 2.2 Abbreviations.................................................................................................................. 9 2.3 Conventions .................................................................................................................. 12 3 References .............................................................................................................................. 13 4 Residential Gateway Requirements ....................................................................................... 18 General Device Requirements................................................................................................... 18 Design..................................................................................................................................... 18 Device Operation.................................................................................................................... 19 Networking Protocols............................................................................................................. 20 Wide Area Networking (WAN) ................................................................................................ 21 ATM....................................................................................................................................... 21 ATM Multi-PVC.................................................................................................................... 22 Connection Establishment...................................................................................................... 23 Ethernet OAM........................................................................................................................ 23 Bridging.................................................................................................................................. 24 DHCP Client .......................................................................................................................... 24 PPP Client .............................................................................................................................. 26 802.1x Client .......................................................................................................................... 27 Denial of Service Prevention.................................................................................................. 28 Quality of Service................................................................................................................... 28 Local Area Networking (LAN) ................................................................................................. 30 General LAN Protocols.......................................................................................................... 30 Private Addressing ................................................................................................................. 30 DHCP Server.......................................................................................................................... 31 Naming Services .................................................................................................................... 33 NAT/NATP ............................................................................................................................ 34 Port Forwarding...................................................................................................................... 34 ALG Functions....................................................................................................................... 35 Connection Forwarding.......................................................................................................... 35 December 2006 © The Broadband Forum. All rights reserved. 4 Functional Requirements for Broadband Residential Gateway Devices TR-124 IGMP and Multicast in Bridged Configurations.................................................................... 37 IGMP and Multicast in Routed Configurations ..................................................................... 37 Firewall (Basic)...................................................................................................................... 39 Firewall (Advanced)............................................................................................................... 39 Time of Day Filtering............................................................................................................. 41 Content Filtering .................................................................................................................... 41 Automated User Diagnostics.................................................................................................. 41 Captive Portal with Web Redirection..................................................................................... 41 Management & Diagnostics ...................................................................................................... 42 General ................................................................................................................................... 42 UPnP....................................................................................................................................... 44 UPnP IGD .............................................................................................................................. 44 Local Management................................................................................................................. 44 Remote Management (TR-069) ............................................................................................. 46 Remote Management (Web Browser).................................................................................... 47 Network Time Client.............................................................................................................. 47 WAN Interface Modules ........................................................................................................... 48 ADSL and ADSL2+............................................................................................................... 48 VDSL2 ................................................................................................................................... 49 xDSL General Requirements ................................................................................................. 50 xDSL INP Values................................................................................................................... 50 xDSL Bonding........................................................................................................................ 51 xDSL Reporting of Physical Layer Issues ............................................................................. 52 DC Sealing Current ...............................................................................................................