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"At different scales diagrams may represent various levels of network granularity. At the LAN level, individual nodes may represent individual physical devices, such as hubs or file servers, while at the WAN level, individual nodes may represent entire cities. In addition, when the scope of a diagram crosses the common LAN/ MAN/ WAN boundaries, representative hypothetical devices may be depicted instead of showing all actually existing nodes. For example, if a network appliance is intended to be connected through the Internet to many end-user mobile devices, only a single such device may be depicted for the purposes of showing the general relationship between the appliance and any such device." [Computer network diagram. Wikipedia]
The physical LAN and WAN diagram template for the ConceptDraw PRO diagramming and vector drawing software is included in the Computer and Networks solution from the Computer and Networks area of ConceptDraw Solution Park.
Physical LAN and WAN diagram template
Physical LAN and WAN diagram template, workstation, router, modem, laptop computer, firewall, desktop PC, cloud,
Used Solutions

Local area network (LAN). Computer and Network Examples

Local area network (LAN). Computer and Network Examples
A local area network (LAN) is a devices network that connect with each other in the scope of a home, school, laboratory, or office. Usually, a LAN comprise computers and peripheral devices linked to a local domain server. All network appliances can use a shared printers or disk storage. A local area network serve for many hundreds of users. Typically, LAN includes many wires and cables that demand a previously designed network diagram. They are used by IT professionals to visually document the LANs physical structure and arrangement.
ConceptDraw - Perfect Network Diagramming Software with examples of LAN Diagrams. ConceptDraw Network Diagram is ideal for network engineers and network designers who need to draw Local Area Network diagrams.
How to Draw a Computer Network
How to Draw a Computer Network

Network Diagram Examples

Bus topology diagram - example for ConceptDraw solution Computer and Networks
ConceptDraw PRO diagramming software includes huge collection of network diagrams examples, computer and network templates, design objects and stencils.
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.
Computer security diagram
Computer security diagram, monitor, firewall, elbow connector, without arrows, elbow connector, display, direct connector, without arrows,
Used Solutions

Wide area network (WAN) topology. Computer and Network Examples

Wide area network (WAN) topology. Computer and Network Examples
A Wide area network (WAN) is a telecommunication network that is used for connecting computers and covers a wide geographical area. WANs often contain a few smaller networks (LANs, MANs, etc.). The packet switching and circuit switching technologies are effectively used in WANs.
This example was created in ConceptDraw PRO using the Computer and Networks Area of ConceptDraw Solution Park and shows the Wide area network topology.

Using Remote Networking Diagrams

Network diagram - Ultra high performance WLAN
Remote Networking - We explain the method most people use to connect to the Internet.

Network Diagram Software LAN Network Diagrams & Diagrams for LAN Physical Office Network Diagrams

Network Diagram Software for Mac OS X and Windows
ConceptDraw - Perfect Network Diagramming Software with examples of WAN, LAN Diagrams. ConceptDraw Network Diagram is ideal for network engineers and network designers who need to draw Local Area Network diagrams, physical office network diagrams and Diagram for LAN.
How to Draw a Computer Network
How to Draw a Computer Network

Cisco WAN. Cisco icons, shapes, stencils and symbols

Cisco Network Diagram. Design Elements - Cisco WAN (Win Mac)
The ConceptDraw vector stencils library Cisco WAN contains equipment symbols for drawing the computer wide area network diagrams.

Campus Area Networks (CAN). Computer and Network Examples

Campus Area Network
A campus network provides wireless access to the Internet or LAN to users located in two or more buildings or in the open space surrounding those buildings. A campus network is usually set in the campus of a university, but the same kind of planning and design can be applied for other purposes. For example, the campus network can used for an office or industrial park, in a public place like a supermarket with an entertainment center, even on a farm. Another form of temporary campus network can exist during special events such as music festivals or rallies.
The elementary campus networks arise spontaneously: the radio signals from the access points, which provide network inside the building are not limited to its walls, so any user in the backyard can also get wireless network access. The larger and more complex campus network may have additional access points in places specially chosen for serving clients, i.e., on the lawn in front of the college or in a coffee shop around the corner.

Metropolitan area networks (MAN). Computer and Network Examples

Metropolitan area networks (MAN). Computer and Network Examples
Metropolitan Area Network combines local networks located within a city, and is based on high data rate compounds, implemented on the basis of fiber channels and other digital data transmission channels. Now, with the increasing number of network communities, wireless local area networks based on 802.11b standard are combined into a wireless metropolitan area network consisting of affordable antenna systems and consumer-grade wireless equipment using 802.11a and 802.11b standards.