Cisco Option 43 Generator
Option 43 can be used to discover WLC or convert EWC/ME to CAPWAP. This is a really useful feature, and I often need to use it in my tests. But its format conversion is...
Tagged: WLC
Initial Configuration for Embedded Wireless Controller
Product overview Official explanation The Cisco® Embedded Wireless Controller (EWC) on Catalyst® Access Points is a software-based controller integrated into Cisco Catalyst 9100 Access Points. It is a simplified, low-cost, feature-rich Wi-Fi architecture with...
How to solve AireOS raw Telnet mode problem
Given that telnet sends data in clear text, we prefer to use SSH instead of telnet for security reasons. This article does not recommend using telnet to connect to AireOS WLC, but hopes that...
Monitoring IOS-XE device with Netconf API + Grafana + InfluxDB
In this article I will discuss how to use Netconf API + Grafana + InfluxDB to monitor IOS-XE devices, such as Cisco Catalyst 9800 Series Wireless Controllers or Cisco Cloud Services Router 1000V Series....
ax-udl: Cisco Wireless Syntax Highlight Rules for Notepad++
Notepad++ is often used in my work, mainly for analyzing logs. If I can mark some important content in advance, it will greatly improve my work efficiency. So I started the ax-udl project, which...
No valid user found, please configure a valid user from Controller
If you are using Cisco Catalyst 9800 Series Wireless Controller, you may not be able to log in to the AP after AP Join and the following error message appears. Probably for security reasons,...
Configure 802.1X on 9800 series WLC and ISE
1. Configure AAA Add the ISE address to the 9800 WLC. Configure Server Groups (optional, not required). Configure AAA Method (required), If not configured, authentication will fail, which will be discussed in 6. Verification....
Configure PSK authentication on Cisco Catalyst 9800 Series Wireless Controller
1. Configure WLAN Add WLAN in Configuration> Tags & Profiles> WLANs and configure PSK. Don’t forget to change Status to ENABLED. 2. Configure location Add location, you can also use the existing location. Configure...
Upgrade a Cisco Catalyst 9800 Series Wireless Controller
1. Delete old installation files install remove inactive 2. Copy files from ftp server to flash memory copy ftp://username:password@image flash: 3. Confirm copied file dir flash:*.bin 4. Install to bootflash install add file bootflash:image...
Initially configure a Cisco Catalyst 9800 Series Wireless Controller
The following is the initial configuration process of C9800-80-K9. 1. Configure IP address and default route Updated on November 5, 2020Or configure the IP address in the port instead of SVI 2. Configure SSH...
How to recover password for Cisco lightweight access point
There are two common methods to recover password for Cisco lightweight access points. Reset LAP through with Controller CLI This method is limited to the case where the AP has joined the WLC. config...
How to automate WLC using Python (CLI)
Updated on May 21, 2020: If you are looking for C9800 wireless controller automation, please refer to my following article, I hope this helps you.Monitoring IOS-XE device with Netconf API + Grafana + InfluxDB...
Understanding Aggressive Load Balancing
For wireless environments, there’s competition everywhere. If an AP serves many clients, there must be delays and packet loss. Aggressive Load Balancing was created to solve this problem, the number of clients connected to...
Cisco Wave2 AP and WPA2 TKIP
If you are using Wave2 AP and WPA2 TKIP is enabled, it may cause client connection problems. This is because the Wave2 AP does not support WPA2 TKIP. In versions 8.4 and above, the...
Using RTOS image to recovery WLC
If your WLC failed to load image, you may need to recovery the WLC using RTOS image. We need to contact TAC to get the RTOS image. The following are the upgrade steps. Type...
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...
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...
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...
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