Cisco 1231G - Aironet - Wireless Access Point Manual de usuario descargar pdf (Pagina 8)

Q. Is it true that if I only allow IEEE 802.11g clients on a wireless

network, they cannot interfere with a parallel IEEE 802.11b network

because they use different modulation schemes?

A. No, this is not true. These 802.11g clients can interfere if they use the same frequency.

Make sure to use different channels. The three nonoverlapping channels are 1, 6, and 11.

Q. What is the speed of the AP Ethernet port?

A. The AP Ethernet port supports either 10 Mbps or 100 Mbps over an RJ−45 connector, in

either half or full duplex. Hard set the speed and duplex to the same settings as your switch or

hub.

Q. Is there a mechanism for failover or redundancy for my AP?

A. Yes, you can configure hot standby in order to provide redundancy in the event that the

primary AP fails. Refer to the Additional Steps in Hot Standby Setup section of the Release

Notes for Cisco Aironet Access Points for more information.

Q. What is a WEP key?

A. WEP stands for Wired Equivalent Privacy. You can use WEP to encrypt and decrypt data

signals that transmit between wireless LAN (WLAN) devices. WEP is an optional IEEE

802.11 feature that prevents disclosure and modification of packets in transit and also

provides access control for the use of the network. WEP makes a WLAN link as secure as a

wired link. As the standard specifies, WEP uses the RC4 algorithm with a 40−bit or 10−bit

key. RC4 is a symmetric algorithm because RC4 uses the same key for the encryption and the

decryption of data. When WEP is enabled, each radio station has a key. The key is used to

scramble the data before transmission of the data through the airwaves. If a station receives a

packet that is not scrambled with the appropriate key, the station discards the packet and

never delivers such a packet to the host. Refer to Wired Equivalent Privacy (WEP) on Aironet

Access Points and Bridges Configuration Example for information on how to configure WEP.

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Cisco 1231G - Aironet - Wireless Access Point Manual de usuario Pagina 8