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Unied Access Point Administrator’s Guide

Page 50

October 2013

Section 4 - Managing the Access Point

Field Description

Redirect Mode Enable the HTTP redirect feature to redirect wireless clients to a custom Web page.

When redirect mode is enabled, the user will be redirected to the URL you specify after the

wireless client associates with an AP and the user opens a Web browser on the client to

access the Internet.

The custom Web page must be located on an external Web server and might contain

information such as the company logo and network usage policy.

Note: The wireless client is redirected to the external Web server only once while it is

associated with the AP.

Redirect URL Specify the URL where the Web browser is to be redirected after the wireless client

associates with the AP and sends HTTP trafc.

Table 22 - Virtual Access Point Settings

Note: After you congure the VAP settings, you must click Apply to apply the changes and to save

the settings. Changing some settings might cause the AP to stop and restart system processes. If

this happens, wireless clients will temporarily lose connectivity. We recommend that you change

AP settings when WLAN trafc is low.

None (Plain-text)

If you select None as your security mode, no further options are congurable on the AP. This mode means that

any data transferred to and from the UAP is not encrypted. This security mode can be useful during initial network

conguration or for problem solving, but it is not recommended for regular use on the Internal network because it is

not secure.

Static WEP

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

APs on the network are congured 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 snifng out unencrypted wireless trafc.

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

cipher called RC4.)

Figure 23 - Modify Virtual Access Point Settings (Static WEP)

Field Description

Transfer Key Index Select a key index from the drop-down menu. Key indexes 1 through 4 are available. The

default is 1.

The Transfer Key Index indicates which WEP key the AP will use to encrypt the data it

transmits.

Key Length Specify the length of the key by clicking one of the radio buttons:

•) 64 bits

•) 128 bits