Configuring LAG for the AP
Configuring LAG(link aggregation) allows the AP to provide 2 Gbps uplink. Configuring WLC Use the command “config ap lag-mode support enable” to enable global LAG support. This will cause the DTLS connection to be...
Author: Haifeng
What does asterisk mean in the show clock of the AP?
We know that the asterisk in the Catalyst means <Time is not authoritative>. *—Time is not authoritative.(blank)—Time is authoritative..—Time is authoritative, but NTP is not synchronized. https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750e_3560e/software/release/12-2_55_se/configuration/guide/3750escg/swadmin.html Does AP mean the same thing? The...
The difference between the WLC reset system and the restart command
Both reset system and restart can reload the WLC. But what is the difference? Why are there two commands? There are two explanations for the commands in the CLI. We can see that the...
The difference between K9 and K9C in the 1800/2800/3800 series
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...
CDP negotiation of WLC/AP
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...
Python Packages Offline Installation
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...
How to remotely manage Cisco WLC via Service Port
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...
Recommended configuration for WLAN-VLAN mapping
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...
Mobility Express Master AP client connection limit
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...
How to configure Kiwi Syslog Server for Cisco WLC
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...
Offline Install .NET Framework 3.5 On Windows Server 2016
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....
PCAP capture on ISE
ISE can generate PCAP capture very simply(Compared to SPAN), which is really useful for troubleshooting network issue.
How to recovery AP from u-boot mode (AP2800/AP3800)
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...
How to upgrade IOS AP from ROMMON
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...
License limitation of AIR-CT5508-12-K9
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...
Using Python to change the WLC configuration
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...
Priority order of MAC Filtering on the WLC
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...
How to configure NTPv4 on the WLC
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...
Recent Comments