Cisco Cisco 2106 Wireless LAN Controller
31
Release Notes for Cisco Wireless LAN Controllers and Lightweight Access Points for Release 5.1.151.0
OL-31336-01
Caveats
•
CSCse06206—The controller sends a DEL notification when the IKE lifetime expires, but it does
not send the notice to the client.
not send the notice to the client.
Workaround: None.
•
CSCsf29783—The Cisco WiSM reboots after experiencing a failure with the reaperWatcher
mmMfpTask.
mmMfpTask.
Workaround: None.
•
CSCsg04831—There are not enough debugs to determine the packet flow in the controller for guest
access.
access.
Workaround: Use a wireless sniffer trace.
•
CSCsg59235—The controller CLI lacks commands for debugging activity at the IP, ICMP, TCP,
UDP, TELNET, SSH, and HTTP layers.
UDP, TELNET, SSH, and HTTP layers.
Workaround: Use an external packet capture device to collect packets to and from the controller.
Send these packets to the Technical Assistance Center (TAC) for analysis.
Send these packets to the Technical Assistance Center (TAC) for analysis.
•
CSCsg87111—After you edit a WLAN configured for WPA1+WPA2 with a conditional redirect to
802.1X, the MIB browser shows a commit failure error.
802.1X, the MIB browser shows a commit failure error.
Workaround: Do not directly change from WPA1+WPA2+conditional web redirect to
802.1X+conditional web redirect. Instead, follow these steps:
802.1X+conditional web redirect. Instead, follow these steps:
a.
Remove conditional web redirect and save your change.
b.
Change Layer2 to 802.1X and save your change.
c.
Change Layer3 to conditional web redirect and save your change.
•
CSCsg88704—When you use the default controller setting of 512 for the controller database size,
the following problems may occur:
the following problems may occur:
–
If you attempt to add a MAC address to a very long MAC filter list, the following error message
appears: “Error in creating MAC filter.”
appears: “Error in creating MAC filter.”
–
If you add a large number of users to the local database, some user entries might be silently
ignored.
ignored.
–
If you add SSCs for the access points, at some point no more entries can be added, and the
following error message appears: “Authorization entry does not exist in Controller’s AP
Authorization List.”
following error message appears: “Authorization entry does not exist in Controller’s AP
Authorization List.”
Workaround: Configure a larger value for the controller database, such as 2048.
•
CSCsg95474—Lightweight access points do not queue disassociation messages, causing the Cisco
7921 phone to remain in a registering loop. This problem occurs when you change the data rate on
the access point.
7921 phone to remain in a registering loop. This problem occurs when you change the data rate on
the access point.
Workaround: Power cycle the 7921 phone.
•
CSCsh11086—If you press Ctrl-S and Ctrl-Q to pause and restart the output of a command such
as debug dot1x event enable, the controller reboots.
as debug dot1x event enable, the controller reboots.
Workaround: Do not stop the console using Ctrl-S.
•
CSCsh31104—The word channel is misspelled in the message log.
Workaround: None.
•
CSCsh96186—Large IP packets that have been split into multiple fragments might fail to be
reassembled by a 4400 series controller.
reassembled by a 4400 series controller.
Workaround: Redesign the network and reconfigure the communication endpoints to eliminate any
points where such a small fragment could be generated.
points where such a small fragment could be generated.