Cisco Cisco AP541N Wireless Access Point Manual De Mantenimiento

Modifying Virtual Access Point Settings

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Cisco AP541N Dual-band Single-radio Access Point Quick Start Guide

After you configure the VAP settings, you must click Apply to apply the changes 
and to save the settings. Changing some settings might cause the access point to 
stop and restart system processes. If this happens, wireless clients temporarily 
lose connectivity. We recommend that you change access point settings when 
WLAN traffic is low.

The Security mode you set here is specifically for this VAP.

When the page initially loads, any VAP that has a security mode other than None 
will have a Show details link below the Security selection box. Click the Show 
details link to show the current security settings. When showing the current 
security settings, the link changes to Hide details. Click Hide details to collapse 
the current security settings.

If you select None as your security mode, no other options are configurable on the 
access point. This mode means that any data transferred to and from the access 
point is not encrypted. This security mode can be useful during initial network 
configuration or for problem solving, but it is not recommended for regular use on 
the Internal network because it is not secure.

Wired Equivalent Privacy (WEP) is a data encryption protocol for 802.11 wireless 
networks. All wireless stations and access point

s

 on the network are configured 

with a static 64-bit (40-bit secret key + 24-bit initialization vector (IV)) or 128-bit 
(104-bit secret key + 24-bit IV) Shared Key for data encryption.

Static WEP is not the most secure mode available, but it offers more protection 
than setting the security mode to None (Plain-text) as it does prevent an outsider 
from easily sniffing out unencrypted wireless traffic. 

WEP encrypts data moving across the wireless network based on a static key. 
(The encryption algorithm is a stream cipher called RC4.)