What Are The Wi-Fi Modems

Wi-Fi modems, also called Wi-Fi routers are electronic devices that have Internet access and offer a wireless access point WAP (Wireless Access Point) to the computers on a wireless LAN that connects via WLAN Wi- Fi. Wi-Fi modems work as a modem, router, gateway, switch and wireless access point, and there are models for all types of telephone networks, both fixed and mobile, wired or wireless.

Features

Wi-Fi modems provide Internet access to a WLAN (Wireless LAN, Wireless Local Area Network) and modems are often referred to generically Wi-Fi or Wi-Fi routers.

Wi-Fi modems are one of the devices demanded by users, allowing up a wireless network both local and Internet connection sharing transparently. Furthermore, it is increasingly common to incorporate advanced features such as internal hard drive or FTP server, allowing use as shared storage unit, a feature very useful in home networks, and to store documents and access them from any point of the network, including via the web.

The configuration of Wi-Fi modems is usually done through an internal Web page, accessible at 192.168.1.1, where a menu system lets you configure all device options.

Wi-Fi modems are devices that perform several functions:

Gateway to the Internet provide access to local network computers sharing an Internet connection with a single external IP using NAT and IP Masquerading. Router: make the routing of data packets to interconnect local and external networks. Modem: work as a modulator of the signal sent to the outside and a demodulator for the signal arriving from abroad. Wireless access point, allowing wireless access to the Internet via Wi-Fi. Switch: many models of Wi-Fi modems allow you to create a wired Ethernet LAN. Other features: often have additional features such as firewall, DHCP server, FTP server, DNS server, encryption or packet filtering. Many models also incorporate an internal hard disk or USB connectors to connect external hard drives. Type

Here the main types of Wi-Fi modems:

ADSL Router: access to a fixed telephone network (PSTN) that has enabled ADSL. Wi-Fi Router 3G external modem that connects to a wireless network. It requires a SIM card. 3G USB Modem based Wi-Fi: Wi-Fi base added to the 3G USB modem functionality to the WLAN router. Requires SIM card. Cable-modem: allows Internet access through cable TV infrastructure. WiMAX Router: access to a radio telephone network. Mobile phones and Wi-Fi modems: Many mobile phones can be used as Wi-Fi modems for other devices, requiring that both have Wi-Fi. Source: Wi-Fi Modems