Converting an old wireless router into an access point

Converting an old wireless router into an access point

A “wireless routerWikipedia: 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 net...” is actually quite a complex device. It comprises of a routerWikipedia: A router[a] is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. A data packet is typically forwarded from one ..., a network switchWikipedia: A network switch (also called switching hub, bridging hub, officially MAC bridge[1]) is a computer networking device that connects devices together on a computer network by using packet switching to r... and a Wireless Access PointWikipedia: In computer networking, a wireless access point (WAP) is a networking hardware device that allows a Wi-Fi compliant device to connect to a wired network. The WAP usually connects to a router (via a wi.... A router is a bridge between two networks – typically the Internet and a Local Area NetworkWikipedia: A local area network (LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building[1] and has its network.... A switch (in its simplest form) connects many devices on the same network – typically a Local Area Network. A Wireless Access Point (WAP) provides a point of connectivity for wireless devices onto a network – typically a Local Area Network. A WAP can be thought of a little bit like a wireless switch in such that it connects many wireless devices on the same network.

I have a tonne of wireless routers knocking around. Most of these are Netgear WGR614 (v9) routers which I acquired whilst I was a student, forced to suffer the pain of being a Virgin MediaWikipedia: Virgin Media PLC is a British company which provides fixed and mobile telephone, television and broadband internet services to businesses and consumers in the United Kingdom. Its headquarters are in H... customer. There’s 2 ways to use a wireless router as an access point. The right way and the easy way. I shall cover each of these below.

Edit: For both methods you will likely want to disable DHCP on the router via its web control panel – Thanks to @Duffy177 for pointing this out.

The Easy Way

A typical wireless router is constructed in such that the routing happens between its “WANWikipedia: A wide area network (WAN) is a telecommunications network or computer network that extends over a large geographical distance. Wide area networks are often established with leased telecommunication ci...” port and its switch. As such, if you just plug all of your devices into the switch ports and don’t use the “WAN” port, you have a switch and wireless access point rolled into one. It’s normally pretty easy to identify which is the “WAN” port and which are the switch ports as most routers group the ports together and some even colour the WAN port differently. The below image of the Netgear WGR614 shows this:

Netgear WGR614 (v9)









The Right Way

The right way is sadly not always possible as it depends if the router supports it. When you log into the web interface, look for a setting relating to using the router as an access point or assigning the WAN port to the switch. If you can enable this option, you can use all of the ports on the router as it has now stopped routing. The below image of the DD-WRT firmware config shows an example of this:

DD-WRT Assign WAN Port to Switch





That’s about it. Hopefully you can recycle some old routers and give them a new lease of life.