CCNA

GNS3 Configuration Guide

GNS3 Configuration Guide

What is GNS3 I hear you cry? Well, imho, it is the best tool on the market to practice router configuration without having an actual router in front of you.

Additional IPv6 Features

Additional IPv6 Features

Streamlined IPv6 HeaderThe IPv6 header has a new format that is designed to keep header overhead to a minimum.

Difference Between VLSM and CIDR

Difference Between VLSM and CIDR

VLSM – Variable Length Subnet Masking. Several new methods of addressing were created so that usage of IP space was more efficient.

IP Access Lists

IP Access Lists

ACCESS LISTSAccess lists allow Cisco routers to function as a packet filter and are supported for several protocols.

7-layer OSI MODEL

7-layer OSI MODEL

The OSI (Open System Interconnection) model is developed by ISO in 1984 to provide a reference model