Cisco WAP571, Administration Manual

Page: 88 / 192

Wireless
Networks
Cisco WAP571/E Administration Guide 88
5
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CAUTION
After new settings are saved, the corresponding processes may be stopped and
restarted. When this happens, the WAP device may lose connectivity. We
recommend that you change WAP device settings when a loss of connectivity will
least affect your wireless clients.
NOTE
To delete a VAP, select the VAP and click Delete . To save your deletion permanently,
click Save when complete.
Configuring Security Settings
These sections describe the security settings that you configure, depending on
your selection in the Security list on the Networks page.
None (Plain-text)
If you select None as your security mode, no additional security settings are
configurable on the AP. This mode means that any data transferred to and from the
AP 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.
Static WEP
Wired Equivalent Privacy (WEP) is a data encryption protocol for 802.11 wireless
networks. All wireless stations and access points 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.)
These parameters configure Static WEP:
• Transfer Key Index —A key index list. Key indexes 1 through 4 are available.
The default is1.