Design elements - Cisco WAN

The vector stencils library "Cisco WAN" contains 15 symbols of wide area network (WAN) devices and equipment: CSU/ DSU (Channel Service Unit/ Data Service Unit), WAN, MUX (multiplexer), PBX switch, Hub, NAT (network address translation), distributed and local directors, PBX (private branch exchange), Network clouds, DPT (dynamic packet transport).
Create the computer network topology diagrams using the ConceptDraw PRO diagramming and vector drawing software with the design elements library "Cisco WAN".
"A wide area network (WAN) is a network that covers a broad area (i.e., any telecommunications network that links across metropolitan, regional, or national boundaries) using private or public network transports. Business and government entities utilize WANs to relay data among employees, clients, buyers, and suppliers from various geographical locations. In essence, this mode of telecommunication allows a business to effectively carry out its daily function regardless of location. The Internet can be considered a WAN as well, and is used by businesses, governments, organizations, and individuals for almost any purpose imaginable.
Related terms for other types of networks are personal area networks (PANs), local area networks (LANs), campus area networks (CANs), or metropolitan area networks (MANs) which are usually limited to a room, building, campus or specific metropolitan area (e.g., a city) respectively." [Wide area network. Wikipedia]
The example "Design elements - Cisco WAN" is included in the Cisco Network Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.

This computer security diagram example was designed on the base of the Wikimedia Commons file: Firewall.png.
[commons.wikimedia.org/ wiki/ File:Firewall.png]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"In computing, a firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted, secure internal network and another outside network, such as the Internet, that is assumed to not be secure or trusted. Firewalls are often categorized as either network firewalls or host-based firewalls. Network firewalls are a software appliance running on general purpose hardware or hardware-based firewall computer appliances that filter traffic between two or more networks. Host-based firewalls provide a layer of software on one host that controls network traffic in and out of that single machine. Firewall appliances may also offer other functionality to the internal network they protect such as acting as a DHCP or VPN server for that network." [Firewall (computing). Wikipedia]
The cybersecurity diagram example "Firewall between LAN and WAN" was created using the ConceprDraw PRO software extended with the Network Security Diagrams solution from the Computer and Neworks area of ConceptDraw Solution Park.