What’s WAN – explains course

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In the context of networks or routers often the term WAN emerges. Is that similar to a LAN? We tell you a simple and understandable in this guide, which is WAN where you find it and what you can do with it.

15438What is WAN?

What's WAN explains course

WAN is short for Wide Area Network to German about &# 8220; wide area network&# 8221 ;. A WAN is thus a network of computers over a larger area. The best way to explain this in connection to a LAN.

A WAN is a merger of LAN networks.A WAN is a merger of LAN networks.

LAN stands for Local Area Network, ie a local network in which several computers as in the home or in a company communicate internally over a network and can share files. A WAN can now consist of several LANs that spreads via countries or continents.

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There WANs belonging to organizations and be used by this and then there WANs, which are built by Internet service providers to offer access to the Internet.

While the LAN computers preferably are connected via Ethernet network cable, there is the WAN following additional techniques:

  • Multiprotocol Label Switching (IP / MPLS)
  • Plesiochronous Digital Hierarchy (PDH)
  • Synchronous Digital Hierarchy (SDH)
  • Asynchronous Transfer Mode (ATM)
  • X.25
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use WAN rather than LAN Fritz box: Router

At home router WAN port is usually used as a connection to DSL or cable modem. With a Fritz box is also the first LAN port can switch to a WAN port:

  1. For this you open the user interface of the router in the browser. Get in touch with your password.
  2. Click on the menu Internet access.
  3. the option selected connection to a cable modem.
Fritz box: Here you configure the LAN 1 port as a WAN port.Fritz box: Here you configure the LAN 1 port as a WAN port.

This is useful if you want to set up at home, for example, next to the home network an office network. Then a network cable from the LAN port of the home network router is plugged into the WAN port on the office network router. The office network router then connects over the Internet of the home network router to the Internet.

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