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Wikipedia

Wireless router

A wireless router is a device that performs the functions of a router and also includes the functions of a wireless access point. It is used to provide access to the Internet or a private computer network. Depending on the manufacturer and model, it can function in a wired local area network, in a wireless-only LAN, or in a mixed wired and wireless network.

An early example of a wireless router

Features

Wireless routers typically feature one or more network interface controllers supporting Fast Ethernet or Gigabit Ethernet ports integrated into the main system on a chip (SoC) around which the router is built. An Ethernet switch as described in IEEE 802.1Q may interconnect multiple ports. Some routers implement link aggregation through which two or more ports may be used together improving throughput and redundancy.[1]

All wireless routers feature one or more wireless network interface controllers. These are also integrated into the main SoC or may be separate chips on the printed circuit board. It also can be a distinct card connected over a MiniPCI or MiniPCIe interface. Some dual-band wireless routers operate the 2.4 GHz and 5 GHz bands simultaneously. Wireless controllers support a part of the IEEE 802.11-standard family and many dual-band wireless routers have data transfer rates exceeding 300 Mbit/s (For 2.4 GHz band) and 450 Mbit/s (For 5 GHz band). Some wireless routers provide multiple streams allowing multiples of data transfer rates (e.g. a three-stream wireless router allows transfers of up to 1.3 Gbit/s on the 5 GHz bands).

Some wireless routers have one or two USB ports. These can be used to connect printer or desktop or mobile external hard disk drive to be used as a shared resource on the network.[2] A USB port may also be used for connecting mobile broadband modem,[3] aside from connecting the wireless router to an Ethernet with xDSL or cable modem. A mobile broadband USB adapter can be connected to the router to share the mobile broadband Internet connection through the wireless network. Some wireless routers come with either xDSL modem, DOCSIS modem, LTE modem, or fiber optic modem integrated.

The Wi-Fi clone button simplifies Wi-Fi configuration and builds a seamless unified home network, enabling Super Range Extension, which means it can automatically copy the SSID and Password of your router.[4]

Operating system

 
The WRT54G wireless router supporting only 802.11b and 802.11g. Its OEM firmware gave birth to OpenWrt

The most common operating system on such embedded devices is Linux. Less frequently, VxWorks is used. The devices are configured over a web user interface served by a light web server software running on the device. It is possible for a computer running a desktop operating system with appropriate software to act as a wireless router. This is commonly referred to as a SoftAP.

In 2003, Linksys was forced to open-source the firmware of its WRT54G router series (the best-selling routers of all time) after people on the Linux kernel mailing list discovered that it used GPL Linux code.[5] In 2008, Cisco was sued in Free Software Foundation, Inc. v. Cisco Systems, Inc due to similar issues with Linksys routers. Since then, various open-source projects have built on this foundation, including OpenWrt, DD-WRT, and Tomato.

In 2016, various manufacturers changed their firmware to block custom installations after an FCC ruling.[6] However, some companies plan to continue to officially support open-source firmware, including Linksys[7] and Asus.[6]

See also

References

  1. ^ S, Ganesh T. "Netgear Nighthawk X8 R8500 AC5300 Router Brings Link Aggregation Mainstream". www.anandtech.com. Retrieved 2019-01-12.
  2. ^ "What is portable WiFi router and how to use one". www.worldsim.com. WorldSIM. Retrieved 9 May 2016.
  3. ^ D-Link® Mobile Broadband Wireless Router (DIR-412) 2014-08-03 at the Wayback Machine
  4. ^ 300Mbps AV500 WiFi Powerline Extender Starter Kit 2014-11-04 at the Wayback Machine
  5. ^ "The Open Source WRT54G Story". www.wi-fiplanet.com. from the original on 2016-06-04. Retrieved 2016-10-05.
  6. ^ a b "Despite New FCC Rules, Linksys, Asus Say They'll Still Support Third Party Router Firmware". 16 May 2016. from the original on 2016-10-05. Retrieved 2016-10-05.
  7. ^ "Linksys WRT routers won't block open source firmware despite FCC rules". 13 May 2016. from the original on 2016-10-04. Retrieved 2016-10-05.

wireless, router, wireless, router, device, that, performs, functions, router, also, includes, functions, wireless, access, point, used, provide, access, internet, private, computer, network, depending, manufacturer, model, function, wired, local, area, networ. A wireless router is a device that performs the functions of a router and also includes the functions of a wireless access point It is used to provide access to the Internet or a private computer network Depending on the manufacturer and model it can function in a wired local area network in a wireless only LAN or in a mixed wired and wireless network An early example of a wireless router Contents 1 Features 2 Operating system 3 See also 4 ReferencesFeatures EditWireless routers typically feature one or more network interface controllers supporting Fast Ethernet or Gigabit Ethernet ports integrated into the main system on a chip SoC around which the router is built An Ethernet switch as described in IEEE 802 1Q may interconnect multiple ports Some routers implement link aggregation through which two or more ports may be used together improving throughput and redundancy 1 All wireless routers feature one or more wireless network interface controllers These are also integrated into the main SoC or may be separate chips on the printed circuit board It also can be a distinct card connected over a MiniPCI or MiniPCIe interface Some dual band wireless routers operate the 2 4 GHz and 5 GHz bands simultaneously Wireless controllers support a part of the IEEE 802 11 standard family and many dual band wireless routers have data transfer rates exceeding 300 Mbit s For 2 4 GHz band and 450 Mbit s For 5 GHz band Some wireless routers provide multiple streams allowing multiples of data transfer rates e g a three stream wireless router allows transfers of up to 1 3 Gbit s on the 5 GHz bands Some wireless routers have one or two USB ports These can be used to connect printer or desktop or mobile external hard disk drive to be used as a shared resource on the network 2 A USB port may also be used for connecting mobile broadband modem 3 aside from connecting the wireless router to an Ethernet with xDSL or cable modem A mobile broadband USB adapter can be connected to the router to share the mobile broadband Internet connection through the wireless network Some wireless routers come with either xDSL modem DOCSIS modem LTE modem or fiber optic modem integrated The Wi Fi clone button simplifies Wi Fi configuration and builds a seamless unified home network enabling Super Range Extension which means it can automatically copy the SSID and Password of your router 4 Operating system Edit The WRT54G wireless router supporting only 802 11b and 802 11g Its OEM firmware gave birth to OpenWrt See also List of router firmware projects The most common operating system on such embedded devices is Linux Less frequently VxWorks is used The devices are configured over a web user interface served by a light web server software running on the device It is possible for a computer running a desktop operating system with appropriate software to act as a wireless router This is commonly referred to as a SoftAP In 2003 Linksys was forced to open source the firmware of its WRT54G router series the best selling routers of all time after people on the Linux kernel mailing list discovered that it used GPL Linux code 5 In 2008 Cisco was sued in Free Software Foundation Inc v Cisco Systems Inc due to similar issues with Linksys routers Since then various open source projects have built on this foundation including OpenWrt DD WRT and Tomato In 2016 various manufacturers changed their firmware to block custom installations after an FCC ruling 6 However some companies plan to continue to officially support open source firmware including Linksys 7 and Asus 6 See also EditWi Fi Protected SetupReferences Edit S Ganesh T Netgear Nighthawk X8 R8500 AC5300 Router Brings Link Aggregation Mainstream www anandtech com Retrieved 2019 01 12 What is portable WiFi router and how to use one www worldsim com WorldSIM Retrieved 9 May 2016 D Link Mobile Broadband Wireless Router DIR 412 Archived 2014 08 03 at the Wayback Machine 300Mbps AV500 WiFi Powerline Extender Starter Kit Archived 2014 11 04 at the Wayback Machine The Open Source WRT54G Story www wi fiplanet com Archived from the original on 2016 06 04 Retrieved 2016 10 05 a b Despite New FCC Rules Linksys Asus Say They ll Still Support Third Party Router Firmware 16 May 2016 Archived from the original on 2016 10 05 Retrieved 2016 10 05 Linksys WRT routers won t block open source firmware despite FCC rules 13 May 2016 Archived from the original on 2016 10 04 Retrieved 2016 10 05 Retrieved from https en wikipedia org w index php title Wireless router amp oldid 1135629622, wikipedia, wiki, book, books, library,

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