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
179
See the NAT chapter for more information on NAT.
22.3.2 Cautions with UPnP
The automated nature of NAT traversal applications in establishing their own
services and opening firewall ports may present network security issues. Network
information and configuration may also be obtained and modified by users in
some network environments.
When a UPnP device joins a network, it announces its presence with a multicast
message. For security reasons, the MWR222 allows multicast messages on the
LAN only.
All UPnP-enabled devices may communicate freely with each other without
additional configuration. Disable UPnP if this is not your intention.
22.4 UPnP Screen
Use this screen to enable UPnP on your MWR222.
Click Management > UPnP to display the screen shown next.
Figure 91 Management >
UPnP
The following table describes the fields in this screen.
Table 61 Management > UPnP
LABEL DESCRIPTION
Enable the Universal
Plug and Play (UPnP)
Feature
Select this check box to activate UPnP. Be aware that anyone
could use a UPnP application to open the web configurator's
login screen without entering the MWR222's IP address
(although you must still enter the password to access the web
configurator).