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Terme informatique

LAN

Local network connecting the equipment of a home, office or site.

Networking
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Simple definition

One LAN group devices close to each other, usually connected by Ethernet or Wi-Fi.

Technical definition

The Local Area Network covers a limited area and often relies on switch points, access points and private IP adressage. It can be segmented into several VLAN.

What is it used for ?

Communicate the posts, servers, printers and telephones of the same site.

Practical example

The equipment of an office uses a LAN in 192.168.10.0/24 before going out to the Internet by the firewall.

Common issues

  • Network loop
  • Address Conflict
  • Poor wiring
  • No segmentation

WAN · Switch · Router · VLAN · Wi-Fi

Key takeaway: This entry explains the general operation of the term. Exact settings may vary depending on software, vendors and environments.

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