Cisco AP541N-A-K9 Administration Guide - Page 61

Wireless Modifying Virtual Access Point Settings 4 Table 11 VAP Field Descriptions Field RADIUS IP Address 1-3 Description Enter up to three IPv4 addresses to use as the backup RADIUS servers. RADIUS Key RADIUS Key 1-3 Enable Radius Accounting If authentication fails with the primary server, each configured backup server is tried in sequence. The address must be valid in order for the access point to attempt to contact the server. Enter the RADIUS key in the text box. The RADIUS Key is the shared secret key for the global RADIUS server. You can use up to 63 standard alphanumeric and special characters. The key is case sensitive, and you must configure the same key on the access point and on your RADIUS server. The text you enter is displayed as large dot characters to prevent others from seeing the RADIUS key as you type. Enter the RADIUS key associated with the configured backup RADIUS servers. The server at RADIUS IP Address-1 uses RADIUS Key-1, RADIUS IP Address-2 uses RADIUS Key-2, and so forth. Select this option to track and measure the resources a particular user has consumed such as system time, amount of data transmitted and received, and so forth. VAP If you enable RADIUS accounting, it is enabled for the primary RADIUS server and all backup servers. You can configure up to 16 VAPs for each wireless radio. VAP0 is the physical wireless radio interface. To disable VAP0, you must disable the wireless radio. Due to the dependency of the WDS links with the VAP0 security mode, VAP0 cannot be configured to None, Static WEP, or 802.1X if the WDS links have WPA Personal as the security mode. If you need to change the security of VAP0 from WPA Personal or WPA Enterprise to None, Static WEP, or 802.1X, then remove the WPA security mode for all the WDS links. Cisco AP 541N Dual-band Single-radio Access Point Quick Start Guide 58