How to configure a Cisco Layer 3 switch-InterVLAN Routing

On a Layer3-capable switch, the port interfaces work as Layer 2 access ports by default, but you can also configure them as “Routed Ports” which act as normal router interfaces. That is, you can assign an IP address directly on the routed port. Moreover, you can configure also a Switch Vlan Interface (SVI) with the …

How to connect the ASA 5506-X in your network for Initial Configuration

As you can see in the specs section above, there are 8x1G network interfaces and also one Management interface (Management 1/1) which belongs to the FirePOWER module. In order to deploy the device in your network and be able to start its initial configuration, connect it as following: NOTES: The Management 1/1 interface belongs to …

Security Hardening Checklist for Cisco Routers/Switches in 10 Steps

A compromised router for example can be devastating to the whole security of the enterprise since it can be used to gain access to data, reconfigured to route traffic to other destinations, used to launch attacks to other networks, used to gain access to other internal resources etc. Therefore, hardening the network devices themselves is …

HSRP Vs VRRP Vs GLBP Redundancy Protocols

HSRP Vs VRRP Vs GLBP Redundancy Protocols In this article we will discuss the similarities and differences between the 3 “First Hop Redundancy” protocols supported by Cisco devices. These are Hot Standby Router Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP) and Gateway Load Balancing Protocol (GLBP). The main purpose of the above protocols is to …

Cisco ASA as DHCP Server with Multiple Internal LANs

In this tutorial I will describe the configuration of an interesting network scenario that I’m sure many of you will find helpful. This scenario is applicable in many real world situations, mainly in small to medium networks. The network scenario is as follows: We have three different internal LAN networks which host user computers and …

Cisco Switch Port Security Configuration

Introduction One of the best practices in network security is to try and stop security threats from the entry-point of a LAN network. This means that the switch can play an important role in network security since it’s the entry-point of the network. For example, port- security on Cisco switches can be used to stop …

Cisco Switch Commands Cheat Sheet

Cisco switches can be used as plug-and-play devices out of the box but they also offer an enormous amount of features. Although the main purpose of the switch is to provide inter-connectivity in Layer 2 for the connected devices of the network, there are myriad features and functionalities that can be configured on Cisco Switches. …

Converting an Autonomous Access Point to Lightweight AP

Introduction In my previous article, I talked about basic configuration of a Cisco WLC controller. In that post I stated that there are two wireless architectures, Distributed and Centralized. Distributed architectures incorporate Access Points (APs) that are standalone without any central management. The APs in distributed architecture are also called Autonomous Access Points. On the …

Cisco Wireless LAN Controller Basic Configuration

Introduction Cisco introduced two types of Wireless architectures in its WiFi portfolio: Distributed Architecture. Centralized Architecture. Distributed WiFi Architecture: In Distributed Architecture all the WiFi Access Points (APs) are self-contained and called autonomous or standalone APs. Autonomous APs work individually and have to be configured and managed one by one. In this Architecture an autonomous …

6 Practice Lab Options for CCNA CCNP CCIE

Cisco is continuously developing new versions of its Certification Exams and adds more and more practical requirements in the syllabus. For the CCNA, you can pass the exam without much practical experience, but for the Professional and Expert Level certifications (CCNP, CCIE), having hands on experience on Cisco equipment (or labs) is required if you …