User Manual
Table Of Contents
- NBG-418N v2
- User’s Guide
- Introduction
- The Web Configurator
- Connection Wizard
- Modes
- Tutorials
- 5.1 Overview
- 5.2 How to Connect to the Internet from an AP
- 5.3 Configure Wireless Security Using WPS on both your NBG-418N v2 and Wireless Client
- 5.4 Enable and Configure Wireless Security without WPS on your NBG-418N v2
- 5.5 Using Multiple SSIDs on the NBG-418N v2
- 5.6 Installing UPnP in Windows 7 Example
- 5.7 Using Bandwidth Management on the NBG-418N v2
- Technical Reference
- Wireless LAN
- WAN
- LAN
- DHCP Server
- Network Address Translation
- Dynamic DNS
- Static Route
- Firewall
- Content Filter
- Remote Management
- Universal Plug-and-Play (UPnP)
- Bandwidth MGMT
- System
- Logs
- Tools
- Sys OP Mode
- Language
- Troubleshooting
- Customer Support
- IP Addresses and Subnetting
- Pop-up Windows, JavaScripts and Java Permissions
- Setting Up Your Computer’s IP Address
- Wireless LANs
- Common Services
- Legal Information
- Index
Appendix E Wireless LANs
NBG-418N v2 User’s Guide
207
Fig ure 145 Infrastructure WLAN
Channe l
A channel is the radio frequency(ies) used by wireless devices to transmit and receive data. Channels
available depend on your geographical area. You may have a choice of channels (for your region) so
you should use a channel different from an adjacent AP (access point) to reduce interference.
Interference occurs when radio signals from different access points overlap causing interference and
degrading performance.
Adjacent channels partially overlap however. To avoid interference due to overlap, your AP should be
on a channel at least five channels away from a channel that an adjacent AP is using. For example, if
your region has 11 channels and an adjacent AP is using channel 1, then you need to select a channel
between 6 or 11.
RTS/ CTS
A hidden node occurs when two stations are within range of the same access point, but are not within
range of each other. The following figure illustrates a hidden node. Both stations (STA) are within range
of the access point (AP) or wireless gateway, but out-of-range of each other, so they cannot "hear"
each other, that is they do not know if the channel is currently being used. Therefore, they are
considered hidden from each other.