Tutorial

How to allow multi IP address from the same wireless client

Few days ago, my customer called me for a strange wifi problem. When two or more devices with static IP address are bridged behind...

How to decapsule ERSPAN tunnel

Recently, I needed to send SPAN traffic to a network analyzer, but I had to resolve two problems: The network analyzer was installed on a...

Cisco ISE 2.7 upgrade guide

One year ago, Cisco published the Cisco ISE 2.7 release. Now, this release is the suggested one. It is possible to upgrade directly from release...

Upgrade Catalyst 9000 series

In the past, upgrade a switch was very easy: upload the IOS file (a .bin file), change the bootvar and reload the switch; then...

How to build a console server with Raspberry

In the last years, one of my passions are raspberry and arduino projects. Recently, surfing the linkedin articles, I noticed one: build a console...

Using NPS to manage Cisco devices

In a a previous article, I illustated how to configure Radius server on Cisco switch/router. In this tutorial, I explain how to install and...

How to configure SNMP On FirePower Using FDM

The Cisco Firepower can be managed with two different solutions: Firepower Device Manager (FDM)Firepower Management Center (FMC) FDM lets you configure the basic features of the...

Cisco FMC user control with ISE-PIC

In the article "How to configure PassiveID in Cisco ISE", I explained how PassiveID gathers information from the Microsoft Active Directory environment allowing user-to-IP...

802.1X Deployment Guide: Global configuration

In the previous article, I illustrated what are the dot1x and the benefits related to it. Just to remember that 802.1X authentication involves three...

An overview to Cisco ISE-PIC

The Cisco ISE Passive Identity Connector aka Cisco ISE-PIC is a software designed to gather authentication data (user-ip mapping) from numerous sources (active directory,...

How to configure PassiveID in Cisco ISE

Starting from ISE 2.2, PassiveID is a feature to gather user-to-IP mapping information with or without having 802.1X deployed. PassiveID gathers information from the Microsoft...

802.1x: Introduction and general principles

IEEE 802.1X is an IEEE Standard for port-based Network Access Control to prevent unauthorized devices from gaining access to the network. It defines the...