Примечания к выпуску для Cisco Cisco 2106 Wireless LAN Controller
13
Release Notes for Cisco Wireless LAN Controllers and Lightweight Access Points for Release 4.2.112.0
OL-31336-01
Important Notes
7.
If any part of an antenna system should come in contact with a power line, do not touch it or try
to remove it yourself. Call your local power company. They will remove it safely.
to remove it yourself. Call your local power company. They will remove it safely.
8.
If an accident should occur with the power lines, call for qualified emergency help immediately.
Installation Instructions
Refer to the appropriate quick start guide or hardware installation guide for instructions on installing
controllers and access points.
controllers and access points.
Note
To meet regulatory restrictions, all external antenna configurations must be professionally installed.
Personnel installing the controllers and access points must understand wireless techniques and
grounding methods. Access points with internal antennas can be installed by an experienced IT
professional.
grounding methods. Access points with internal antennas can be installed by an experienced IT
professional.
The controller must be installed by a network administrator or qualified IT professional, and the proper
country code must be selected. Following installation, access to the controller should be password
protected by the installer to maintain compliance with regulatory requirements and ensure proper unit
functionality.
country code must be selected. Following installation, access to the controller should be password
protected by the installer to maintain compliance with regulatory requirements and ensure proper unit
functionality.
Important Notes
This section describes important information about the controllers and access points.
Internal DHCP Server
When clients use the controller’s internal DHCP server, IP addresses are not preserved across reboots.
As a result, multiple clients can be assigned the same IP address. To resolve any IP address conflicts,
clients must release their existing IP address and request a new one.
As a result, multiple clients can be assigned the same IP address. To resolve any IP address conflicts,
clients must release their existing IP address and request a new one.
Crash Files for 1250 Series Access Points
The 1250 series access points may contain either an old bootloader or a new bootloader. Those with an
old bootloader do not generate a crash log when a crash occurs. The crash log is disabled so that a crash
does not corrupt the flash file system. Those with a new bootloader generate a crash log if the access
point is running controller software release 4.2.112.0 or later.
old bootloader do not generate a crash log when a crash occurs. The crash log is disabled so that a crash
does not corrupt the flash file system. Those with a new bootloader generate a crash log if the access
point is running controller software release 4.2.112.0 or later.
New 1250 series access points shipped from the factory contain the new bootloader image, which fixes
the flash file system after it is corrupted during a crash (without losing files). This new bootloader
automatically sets a new CRASH_LOG environment variable to “yes,” which enables a crash log to be
generated following a crash but only on controllers running software release 4.2.112.0 or later.
Therefore, no user configuration is needed to enable a crash log on new 1250 series access points shipped
from the factory.
the flash file system after it is corrupted during a crash (without losing files). This new bootloader
automatically sets a new CRASH_LOG environment variable to “yes,” which enables a crash log to be
generated following a crash but only on controllers running software release 4.2.112.0 or later.
Therefore, no user configuration is needed to enable a crash log on new 1250 series access points shipped
from the factory.