Automating VLAN Creation on Cisco Devices with Ansible

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  Automating VLAN Creation on Cisco Devices with Ansible Ansible is a powerful automation tool that simplifies network management tasks, including creating VLANs on Cisco devices. For beginners, this guide will walk you through automating VLAN creation step-by-step, from setting up Ansible to deploying VLAN configurations. What is a VLAN? A VLAN (Virtual Local Area Network) is a logical group of devices within a network that can communicate as if they were on the same physical network, regardless of their physical location. VLANs improve network efficiency and security by segmenting traffic. Why Use Ansible for VLAN Automation? Consistency: Avoid manual configuration errors. Efficiency: Configure multiple devices in seconds. Scalability: Manage large-scale networks easily. Flexibility: Supports various Cisco devices and integrates with other tools. Prerequisites Cisco Device Configuration: Ensure your Cisco devices support SSH and are configured to allow Ans...
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Issues with CISCO WIRELESS Controller (And resolution) | IT NETWORKS

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On Cisco Wireless controller 5520,


no copy right connection photo



The Access POINTS try to join the Controller by bringing up a connection through the CAPWAP Tunnel, you can see these attempts through the AP log itself.

The problem is that the DHCP server when trying to serve IP Addresses it shows the error BAD_ADDRESS in front of each IP assigned.

So I Took a single access point, started debugging it, after that, I noticed that the CAPWAP connection was empty of errors BUT!! it was trying to resolve this name 
CISCO-CAPWAP-CONTROLLER

This resolution is made with DNS protocol, of course, I honestly wasn't so sure of what I was doing, so I added a new entry in my DNS server and it's corresponding IP was the Controller's after that magically all the Access Points where UP and showed UP on my controller.

The controller I'm working with is the CISCO WIRELESS CONTROLLER 5520
Model: AIR-CT5520-K9
Software Version: 8.3.150.0

Image of the controller








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