Cisco

Often after installing PacketTracer 7, we get an error like the one below. error while loading shared libraries: libpng12.so.0: cannot open shared object file: …

The Cisco Packet Tracer’s latest version or desired version is downloaded from the netcad site or you can download it here without having to sign up. (Download …

Cisco packet tracer is a simulation program that provides us a laboratory environment where we can perform many networked experiments and applications without …

In this article, I will try to explain how to enable the Cisco enable password. 1. Connect the switch to the computer via the console port via a putty or …

Web Redirection and Design Tips If WCCP protocol is enabled on a router and on an interface, the router looks at a outbound IP packet to see if it is destined …

If you have forgotten the router’s enable secret password or someone has just given you a second-hand router, and you don’t know it, you need to decrypt it to …

In this article, I will be talking about the concept of IP and Subnetting. Now let’s take a little technical approach; Each system on the network that …

What is Network Address Translation? The Network Address Translation (NAT) functionality in the Cisco routers allows privately addressed networks to connect to …

First of all, I want to quickly answer the question of what is DHCP. DHCP is a service called Dynamic Host Configuration Protocol that allows devices on the …

BGP Finite State Machine: Troubleshooting (See page 108 of the Halabi book for a diagram). 1. Idle Waiting for Start event, normally initiated by the operator …

Introduction When a site is implementing new router connectivity, it is useful to work from a configuration template to enhance productivity. This is …

/home/nfcuser — user created to drive NetFlow Analyzer, user working directory configs — router configs for NFA use (it’s not happy with them) exports — …