Contents
Purpose of this Manual......................................................................................................vii
Intended Audience............................................................................................................ viii
Structure of this Manual......................................................................................................ix
Standards and Protocols ....................................................................................................ix
Supported Standards and Protocols...................................................................................ix
Obtaining Copies of Internet Protocols and Standards........................................................x
Background Reading ..........................................................................................................xi
Publicly Accessible Documents.........................................................................................xii
Conventions....................................................................................................................... xii
CHAPTER 1 Operation ............................................................................................................. 1
Introduction......................................................................................................................... 1
Overview of the AT-RG213 Residential VOIP Gateway..................................................... 1
Getting Started ................................................................................................................... 2
Hardware and Software Requirements............................................................................... 2
Command Line Interface .................................................................................................... 2
Operating the AT-RG213.................................................................................................... 3
Logging in ........................................................................................................................... 3
Entering Commands........................................................................................................... 4
File Subsystem ................................................................................................................... 4
Online CLI Help .................................................................................................................. 4
Configuration Examples ..................................................................................................... 5
Configuration Script ............................................................................................................5
Saving Configuration Entered with the CLI......................................................................... 5
Loading releases into the AT-RG213 ................................................................................. 6
Command Reference ......................................................................................................... 7
CHAPTER 2 IP.........................................................................................................................18
Introduction....................................................................................................................... 18
The Internet ...................................................................................................................... 18
Addressing........................................................................................................................ 21
Subnets ............................................................................................................................ 23
Multicasting, IGMP and IGMP snooping........................................................................... 24
What is Multicasting?........................................................................................................ 24
What is IGMP? ................................................................................................................. 25
IGMP snooping................................................................................................................. 26
Configuration Examples ................................................................................................... 27