Category Archives: Networking

Configuring Dynamic NAT on Cisco Router

Network Address Translation (NAT) is a method of mapping one IP Address space into another IP address space by changing network address information in the IP head of packet while they are crossing routing devices such as routers or firewalls. Dynamic NAT allows internal hosts to access the Internet by assigning each host a unique… Read More »

Cisco Router Initial and Basic Security Configuration

The following article is to describe how to perform initial and basic security configuration and on the Cisco router using the Cisco command-line interface (CLI) on IOS router operating system. 1. Configuring device hostname Cisco router is packed with factory-assigned default hostname as “Router”. However, you will want to have an identical device hostname for… Read More »

New Cisco CCNA 200-301 Certification

Cisco CCNA 200-125 was already retired on 24 February 2020 and Cisco has released new version of its certification which CCNA 200-301 with combination of many other certification. There is no more CCNA Security or CCNA Data Center etc. and the only choice you will need to go for is new CCNA 200-301. The new CCNA… Read More »