In this document, we will discuss the actual Wi-Fi standard that we can find in the market.
The initial slides consist of extensive lists of Wi-Fi technologies and their uses, such as Bluetooth network, Wi-Fi network, long-range Wi-Fi, and 3G network.
However, they are currently out of service.
Service Sets
Basic Service Set
There are various divisions within the service set, each of which provides certain types of service.
In the basic service, we have things like SSID, which is the service set identifier that is broadcasted in the beacon as described in Mac Wifi.
The SSID is mainly used to announce the presence of the network and allow hosts to connect to it.
Extended Service Set
I have an ESS when I have multiple BSSs collaborating with each other to provide service, giving the user a single interface. I believe it could be explained simply as if it were multiple APs that appear as one network.
An ESS is typically used to provide wireless coverage over a larger area, such as in a campus or office building, where multiple access points are needed to cover the entire area. The access points within an ESS communicate with each other to provide seamless wireless coverage and allow users to move from one area to another without losing connectivity.
One downside of SSID is the default password set by manufacturers (for example, “tsunami” for Cisco).
Rogue access points → attacks on networks left open.