Cisco 2800 Series Configuring

Configuring Radio Settings on an Access Point
How to Configure Radio Settings on an Access Point
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• Message Integrity Check (MIC)—MIC is an additional WEP security feature that prevents attacks
on encrypted packets called bit-flip attacks. The MIC, implemented on both the AP and all
associated client devices, adds a few bytes to each packet to make the packets tamper-proof.
• Temporal Key Integrity Protocol (TKIP)—TKIP, also known as WEP key hashing, is an additional
WEP security feature that defends against an attack on WEP in which the intruder uses an
unencrypted segment called the initialization vector (IV) in encrypted packets to calculate the WEP
key.
• Repeater mode—Aironet extensions must be enabled on repeater access points and on the root
access points to which they associate.
• World mode—Client devices with world mode enabled receive carrier set information from the AP
and adjust their settings automatically.
• Limiting the power level on associated client devices—When a client device associates to the access
point, the AP sends the maximum allowed power level setting to the client.
Disabling Aironet extensions disables the features listed above, but it sometimes improves the ability of
non-Cisco client devices to associate to the access point.
SUMMARY STEPS
1. enable
2. configure terminal
3. interface dot11Radio interface
4. dot11 extension aironet
5. end
6. copy running-config startup-config

Cisco 2800 Series Specifications

General

Power Supply	Internal power supply
Product Type	Router
Form Factor	Rack-mountable
Connectivity Technology	Wired
Power Device	Internal power supply
Operating System	Cisco IOS
Integrated Services	Security, voice
WAN Interfaces	T1/E1, Serial
LAN Interfaces	Fast Ethernet, Gigabit Ethernet
Expansion Slots	4
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Network/Transport Protocol	IP, TCP
Remote Management Protocol	SNMP, Telnet
Features	VPN support, Quality of Service (QoS), VLAN support
Voltage Required	AC 100-240 V
Security Features	Firewall, VPN, Access Control Lists (ACLs)