Articles with the tag: #cisco

NetFlow with Elastic-Stack

Written by Stefan on Tue 02 August 2022. Modified on Tue 02 August 2022. Posted in Blog. Tags: #cisco  #network  #security  #netflow  #elastic-stack 

This blog post shows how to setup a NetFlow collector with Elastic-Stack, Fleet and Elastic-Agent. NetFlow data is sent by a Cisco ASA Firewall cluster.

Cisco Wireless Intrusion Detection Events to Elastic-Stack

Written by Stefan on Tue 07 June 2022. Modified on Thu 28 July 2022. Posted in Blog. Tags: #cisco  #network  #security  #wifi  #elastic-stack 

In this blog post I'm showing how to get Wireless Intrusion Detection Events from Cisco's WIDS included in Cisco's Wireless Controllers into an Elastic-Stack.

802.1X Switch port is amber when only IP Phone is connected

Written by Stefan on Sat 21 May 2022. Modified on Thu 28 July 2022. Posted in Blog. Tags: #cisco  #network  #security 

When 802.1X (wired) is configured on a 3750G switch, the port LED is amber when only an IP Phone is connected (mab). When connecting on the IP Phone a downstream device like a laptop (dot1x), the port LED goes to green.

Login-Block (DoS and Dict-Attack Protection) in Cisco IOS

Written by Stefan on Thu 21 April 2022. Modified on Thu 28 July 2022. Posted in Blog. Tags: #cisco  #network  #security 

Cisco offers a method to protect against DoS (Denial-of-Service) and Dictionary attacks for IOS devices called Login-Block.

Synology DiskStation to Cisco Core Switch redundant setup with LACP

Written by Stefan on Wed 16 February 2022. Modified on Thu 28 July 2022. Posted in Blog. Tags: #synology  #cisco  #switch 

Configuration of LCAP (Link Aggregation Control Protocol) for Synology DiskStation and Cisco Switch.

Cisco SSM On-Prem Upgrade procedure

Written by Stefan on Thu 16 September 2021. Posted in Blog. Tags: #cisco  #software  #ssm 

This is another blog post for Cisco SSM On-Prem server where I'm showing the upgrade process.

Cisco ISE admin password lifecycle and reset

Written by Stefan on Mon 13 September 2021. Posted in Blog. Tags: #cisco  #ise  #software 

Quick notes about Cisco Identity Services Engine password lifetime and admin password reset.

Cisco SSM On-Prem password recovery procedure

Written by Stefan on Wed 08 September 2021. Posted in Blog. Tags: #cisco  #software  #ssm 

For a Cisco Smart Software Manager Test Drive installation I used the older version 8-202010 and I wanted to perform an upgrade to the latest version 8-202108. And of course it is a test drive, I did not save or wrote down the password :). In this document I'm describing how to perform a password recovery for a Cisco SSM On-Prem installation.

Troubleshooting SFP transceivers and Packet captures

Written by Stefan on Sat 03 July 2021. Posted in Blog. Tags: #cisco 

In an older blog post I was writing about "Useful Cisco Commands for Troubleshooting cable problems". In this blog post I'm showing an additional, useful command for Fiber Optics troubleshooting and packet capturing on Cisco switches.

Cisco WLC - No secured WebUI after failover switching

Written by Stefan on Thu 10 June 2021. Posted in Blog. Tags: #cisco  #wifi  #security 

Cisco WLC 3504 secured WebUI is not working on Secondary Unit in a failover (SSO) setup. When switched back to the Primary Unit, the secured WebUI is working again. Troubleshooting and solution of this strange behavior.

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