User`s guide
Table Of Contents
- About This User's Guide
- Document Conventions
- Safety Warnings
- Table of Contents
- Part I: Introduction
- 1. Getting to Know Your MWR222
- 2.
- 2. Introducing the Web Configurator
- 3. Monitor
- 4.
- 4.
- 4. MWR222 Modes
- 5. Router Mode
- 6. Access Point Mode
- 5.
- 5.
- 7. WISP Mode
- 7
- 7
- 8 Tutorials
- 8.3 Connecting to Internet from an Access Point
- 8.4 Configuring Wireless Security Using WPS
- 9 Wireless LAN
- 9.1 Overview
- 9.2 What You Can Do
- Use the General screen to enable the Wireless LAN, enter the SSID and select the wireless security mode.
- 9.3 What You Should Know
- 9.4 General Wireless LAN Screen
- 9.5 Security
- 9.6 MAC Filter
- 9.7 Wireless LAN Advanced Screen
- 9.8 Quality of Service (QoS) Screen
- 9.9 WPS Screen
- 9.10 WPS Station Screen
- 9.11 Scheduling Screen
- 9.12 WDS Screen
- 10.1 Overview
- 10.2 What You Can Do
- 10.3 What You Need To Know
- 10.2
- 10.3
- 10.4 Internet Connection
- 10.5 Mobile WAN
- 10.7 IGMP Snooping Screen
- 11 LAN
- 12 DHCP Server
- 13. Network Address Translation (NAT)
- 14 Dynamic DNS
- 15. OpenDNS
- 16 Static Route
- 17.
- 17.
- 17. Routing Information Protocol
- Part III
- Part V
- Maintenance and Troubleshooting
- Part VI
- Appendices and Index
- Appendix A
- Pop-up Windows, JavaScripts and Java Permissions
- End-User License Agreement for “MWR222”
- NOTE: Some components of this product incorporate free software programs covered under the open source code licenses which allows you to freely copy, modify and redistribute the software. For at least three (3) years from the date of distribution of t...
- Notice
- Information herein is subject to change without notice. Companies, names, and data used in examples herein are fictitious unless otherwise noted. No part may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any p...
- Notice
- GNU GENERAL PUBLIC LICENSE
- GNU LESSER GENERAL PUBLIC LICENSE

MWR211 User’s Guide
103
Figure 55 Multicast Example
In the multicast example above, systems A and D comprise one multicast group.
In multicasting, the server only needs to send one data stream and this is
delivered to systems A and D.
IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to
establish membership in a multicast group - it is not used to carry user data. The
MWR222 supports both IGMP version 1 (IGMP-v1) and IGMP version 2 (IGMP-
v2).
At start up, the MWR222 queries all directly connected networks to gather group
membership. After that, the MWR222 periodically updates this information. IP
multicasting can be enabled/disabled on the MWR222 LAN and/or WAN interfaces
in the Web Configurator (LAN; WAN). Select None to disable IP multicasting on
these interfaces.
10.4 Internet Connection
Use this screen to change your MWR222’s Internet access settings. Click WAN
from the Configuration menu. The screen differs according to the encapsulation
you choose.
10.4.1 Ethernet Encapsulation
This screen displays when you select Ethernet encapsulation.