A wireless bridge can be used to connect networks, typically of different types. A wireless Ethernet bridge allows the connection of devices on a wired Ethernet network to a wireless network. The bridge acts as the connection point to the Wireless LAN-wireless local area network - (Pronouced as WLAN /W-lan/, or "LAWN" /lorn/, sometimes "WiLAN" /wi-lan/)
A communication system that transmits and receives data using modulated electromagnetic waves, implemented as an extension to, or as an alternative for, a wired LAN. WLANs are typically found within a small client node-dense locale (e.g. a campus or office building), or anywhere a traditional network cannot be deployed for logistical reasons.
Benefits of a Wireless Bridge include user mobility in the coverage area, speed and simplicity of physical setup, and scalability. Being a military spin-off, WLANs also provide security features such as encryption, frequency hopping, and firewalls.
Some of these are intrinsic to the protocol, making WLANs at least as secure as wired networks, and usually more
so. The drawbacks are high initial cost (mostly hardware), limited range, possibility of mutual interference, and the need for security-enable clients.
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