For the 1800/2800/3800 series, there are two models, one is K9 and the other is K9C. C in K9C means Configurabule. Usually, the K9C image at the factory is Mobility Express controller software, and...
The TLV list can filter the values contained in the CDP packet. What makes me curious is what is the condition for the successful CDP negotiation of the WLC or AP. The required fields...
I have some virtual machines for testing, but these machines are offline and cannot connect to the Internet. I was having trouble installing the Python module. I can use whl file to install the...
Usually we can connect PC to the Service Port to access the WLC (http/https or SSH/Telnet). At this point we don’t even need to configure gateway for the PC. But if we want to...
When configuring Cisco WLC WLANs, there are three WLAN-VLAN mapping options. AP-Specific Group-Specific Wlan-Specific The difference between AP-Specific and the other two WLAN-VLAN mappings is that the AP-Specific configuration is saved in the AP’s...
Updated on December 15 The Master AP threshold should be 25 instead of 50. The following is official Cisco document. If there are more than 25 Access Points in a Mobility Express network, the...
Solarwinds Kiwi Syslog Server is a widely used commercial Syslog server. Kiwi Syslog Server Free Edition can monitor Syslog for up to 5 devices. We can download Kiwi Syslog Server Free Edition from the...
I tried to install .NET Framework 3.5 on a Microsoft server, but the installation failed. The following error message appears in Server Manager. “Installation of one or more roles, role services, or features failed....
ISE can generate PCAP capture very simply(Compared to SPAN), which is really useful for troubleshooting network issue.
The following is the recovery method when the AP stuck in u-boot mode. It should be noted that these methods have certain risks. 1. Change the bootcmd variable It is possible for the AP...
Press the ESC button during AP startup to enter ROMMON mode. Then use the following command to upgrade the IOS AP. The following is the upgrade process, I used an AIR-CAP3602I-A-K9. 1. Set the...
We know that the maximum capacity of the AIR-CT5508 license is 500 APs. But there are extra cases on AIR-CT5508-12-K9. The Cisco documentation is explained below. A 5500 Series WLC with a base license...
In the post “Logging into WLC GUI with Python” I showed how to use Python to log in to the WLC GUI. In this post we will go a step further and learn to...
We know that there are two types of MAC Filtering for WLC. Local MAC authentication MAC authentication using a RADIUS server When we are designing a network environment, we may be in a situation...
In this post I will show how to configure NTPv4 on the Wireless LAN Controllers. As I mentioned in the last post “NTPv4 causes the WLC to fail to synchronize time“, “NTPv4 protocol is...
The following error message may appear on the Cisco 2504 and 5508 Wireless Controllers. And the WLC can’t synchronize with the NTP Server. In fact, this is because the 2504 and 5508 do not...
In my last post “How to configure NTP Server with Windows Server” I showed how to configure NTP Server with Windows Server. In this post I will show you how to use Cisco switches...
If you are a network administrator, you may face the situation of configuring an NTP server to synchronize time. There are many ways to configure an NTP server. Windows Server or NAS or even...
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