User Guide

System Configuration

NXA-WAP250G 802.11b/g Wireless Access Point

Channel Setting

The NXA-WAP250G uses one radio channel in the 2.4 GHz band to communicate with its clients. The radio

channel may be set manually by the user or automatically by the system, which selects the channel with

the least radio interference (FIG. 23).

The displayed items on this page can be described as follows:

 Auto Channel Selection – Enables the NXA-WAP250G to automatically select an

interference-free radio channel. (Default: Enabled)

 Radio Channel – The radio channel that the NXA-WAP250G uses to communicate with

wireless clients. When multiple NXA-WAP250Gs are deployed in the same area, set the

channel on neighboring NXA-WAP250Gs at least five channels apart to avoid interference

with each other. For example, you can deploy up to three NXA-WAP250Gs in the same area

using channels 1, 6, 11. Note that wireless clients automatically set the channel to the same as

that used by the NXA-WAP250G to which it is linked. (Range: 1-11; Default: 11)

WEP Security

The NXA-WAP250G is configured by default as an “open system,” which broadcasts a beacon signal

including the configured SSID. Wireless clients with a configured SSID of “any” can read the SSID from

the beacon and automatically set their SSID to allow immediate connection to the NXA-WAP250G. To

secure the wireless network, you have to implement user authentication and wireless data encryption.

Wired Equivalent Privacy (WEP) provides a basic level of security, preventing unauthorized access to the

network and encrypting data transmitted between wireless clients and the NXA-WAP250G. WEP uses

static shared keys (fixed-length hexadecimal or alphanumeric strings) that are manually distributed to all

clients that want to use the network (FIG. 24).

FIG. 23 Wireless Channel Setting

If you experience poor performance, you may be encountering interference from

another wireless device. Try changing the channel, as this may eliminate interference

and increase performance. Channels 1, 6, and 11, as the three non-overlapping

channels in the 2.4 GHz band, are preferred.

FIG. 24 WEP Wireless Security