Network security device

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Firewall, A firewall is a network security system that monitors and controls over all your incoming and outgoing network traffic based on advanced and a defined set of security rules.

- firewall block "packet flittering" it can block any unwanted packet from the outsider network  and since they are always on they can protect the network 24/7 of protection.

-newer hardware firewall can analyze the packet whether its a malware or cyberattack or its irregular activities

Router devices used to route packets between different networks, and to connect your network with the Internet

-router allows to specify MAC addresses in the router and restrict access to all other devices that attempt to connect to the network.

-some router have firewall implemented that can block outside access

VPN Gateway, A VPN, or Virtual Private Network, allows you to create a secure connection to another network over the Internet. VPNs can be used to access region-restricted websites, shield your browsing activity from prying eyes on public Wi-Fi, and more.

-tunneling, turning the packet inside another data packet that ensure a layer of security via the internet and network

-encryping packet, where each packet have encryption key and that key shared between the sender and receiver in the network. Encapsulation header is a subprotocol that certain packet information

Secure Modems, A modem is a hardware device that allows a computer to send and receive data over a telephone line or a cable or satellite connection.

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Intrusion Detection System, to detect whether someone or something is trying up to suspicious activity. When it detects something, it notifies the system administrator.

-An IDS analyzes the amount and types of attacks. This information can be used to change your security systems or implement new controls that are more effective.

-an IDS can tell you which machines it compromised, as well as how it is propagating through the network to infect other machines. 

Network Switch, a switch is 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.

-switch saved the record of MAC addresses so when data is transfer it will not increase the response time 

-With the ability to examine the traffic flow, comes the ability to decide how to control and optimize it, such as network segmentation with multiple groups.

-able to logically group devices together to isolate traffic between groups, even when the traffic is passing over the same physical switch.

Webopedia.com. (2018). Differences Between Hardware & Software Firewalls - Webopedia. [online] Available at: https://www.webopedia.com/DidYouKnow/Hardware_Software/firewall_types.asp [Accessed 16 Oct. 2018].

Techadvisory.org. (2018). Firewalls: hardware vs. software. [online] Available at: https://www.techadvisory.org/2017/03/firewalls-hardware-vs-software/ [Accessed 16 Oct. 2018].

Liquid Web. (2018). Hardware Firewalls: An Overview of Benefits and How They Keep You Secure | Liquid Web. [online] Available at: https://www.liquidweb.com/blog/hardware-firewalls-an-overview-of-benefits-and-how-they-keep-you-secure/ [Accessed 16 Oct. 2018].

Bb-elec.com. (2018). Top benefits of utilizing a managed Ethernet switch - B&B Electronics . [online] Available at: http://www.bb-elec.com/Learning-Center/All-White-Papers/Ethernet/Top-benefits-of-utilizing-a-managed-Ethernet-switc.aspx [Accessed 17 Oct. 2018].