Network Security Devices

Activity

Discuss the different types of network security devices and how they aid network security with their advantages.

Firewall

It filters the information coming through the Internet connection.

1. It blocks unauthorized connection inside the network. 
2. Can block unsuitable content

Router

A device or, in some cases, software on a computer, that determines the best way for a packet to be forwarded to its destination.

1. making sure you get the best route.
2. reduce network traffic by creating broadcast domains

VPN Gateways

A type of networking device that connects two or more devices or networks together in a VPN infrastructure.

1. Tunneling
2. Encryption packet data

Secure modems

A network device that both modulates and demodulates analog carrier signals (called sine waves) for encoding and decoding digital information for processing. Purpose of the modem is to convert the analog to digital.

1. 
   

Intrusion Detection System

A system that monitors network traffic for suspicious activity and issues alerts when such activity is discovered.

1. They can look at data in the context of the protocol
2. The network is constantly monitored for any attack

Network Switch

A device that channels incoming data from any of multiple input ports to the specific output port that will take it toward its intended destination.

1.