Linksys WRT300N 300Mbps 4 Port DSL Wireless RouterLinksys WRT300N 300Mbps 802.11n 4-Port Cable DSL Wireless Router Linksys 300Mbps 802.11n (Draft-N) Wireless Router The Wireless-N Broadband Router is really three devices in one box. First, there's the Wireless Access Point, which lets you connect to the network without wires. There's also a built-in 4-port full-duplex 10/100 Switch to connect your wired-Ethernet devices together. Finally, the Router function ties it all together and lets your whole network share a high-speed cable or DSL Internet connection. The Access Point built into the Router uses the very latest wireless networking technology, Wireless-N (draft 802.11n). By overlaying the signals of multiple radios, Wireless-N's "Multiple In, Multiple Out" (MIMO) technology multiplies the effective data rate. Unlike ordinary wireless networking technologies that are confused by signal reflections, MIMO actually uses these reflections to increase the range and reduce "dead spots" in the wireless coverage area. The robust signal travels farther, maintaining wireless connections up to 4 times farther than standard Wireless-G. With Wireless-N, the farther away you are, the more speed advantage you get. It works great with standard Wireless-G and -B equipment, but when both ends of the wireless link are Wireless-N, the router can increase the throughput even more by using twice as much radio band, yielding speeds up to 12 times as fast as standard Wireless-G. But unlike other speed-enhanced technologies, Wireless-N can dynamically enable this double-speed mode for Wireless-N devices, while still connecting to other wireless devices at their respective fastest speeds. In congested areas, the "good neighbor" mode ensures that the Router checks for other wireless devices in the area before gobbling up the radio band. To help protect your data and privacy, the Router can encode all wireless transmissions with industrial-strength 256-bit encryption. It can serve as your network's DHCP Server, has a powerful SPI firewall to protect your PCs against intruders and most known Internet attacks, and supports VPN pass-through. Configuration is a snap with the web browser-based configuration utility. The incredible speed of Wireless-N makes it ideal for media-centric applications like streaming video, gaming, and Voice over IP telephony, and gives you plenty of headroom to run multiple media-intense data streams through the network at the same time, with no degradation in performance. With the Linksys Wireless-N Broadband Router at the center of your home or office network, you can share a high-speed Internet connection, files, printers, and multi-player games, and run media-intensive applications at faster than 10/100 wired network speeds, without the hassle of stringing wires! Specifications Device Type Wireless Router Form Factor Desktop Wireless Network Standards IEEE 802.11b IEEE 802.11g IEEE 802.11n Wireless Data Transfer Rates 300 Mbps Wireless Transmit Power 17 dBm Security Protocols 64-bit WEP 128-bit WEP 256 bit WEP Networking Standards IEEE 802.3 Ethernet 10Base-T IEEE 802.3u Ethernet 100Base-TX Routing / Firewall Protocols DHCP Network Address translation (NAT) TCP / IP Firewall Features MAC Address Filtering URL Filtering Stateful Packet Inspection ( SPI ) Management Web Based Management Web Based WAN Port (s) 1 10/100/ Mbps Ports 4 Ethernet CAT5 CAT6 Dimensions 7.4” x 6.93” x 1.57” Features Internet-sharing Router and 4-port Switch, with a built in speed and range enhanced Wireless Access Point MIMO technology uses multiple radios to create a robust signal that travels up to 4 times farther and reduces dead spots Up to 12 times faster than Wireless-G, but also works great with Wireless-G and -B devices Advanced wireless security with up to 256-bit encryption, and your network protected from Internet attacks by a powerful SPI firewall
What is wireless?
Wireless networking allows computers and peripherals to communicate using radio frequency (RF) transmissions rather than over conventional network cabling. Using wireless Ethernet adaptors, any device capable of being used on a regular computer network can be accessed over a wireless connection for tasks ranging from file and printer sharing to multimedia and Internet access.
Wireless Ethernet technology is outlined by a set of standards called IEEE 802.11. Although other wireless technologies and protocols such as HomeRF and Bluetooth exist, the term wireless is generally used in reference to the IEEE 802.11 standards.
Wireless networking at home using equipment based on the 802.11 standard will be the focus of this Wireless LAN buying guide.
What is Wi-Fi?
Wi-Fi is a certification program established by the Wi-Fi Alliance to ensure the interoperability of wireless devices. Originally, the term Wi-Fi was intended to be interchangeable with 802.11b, but more recently it has broadened to cover any 802.11 network. Bear in mind that while all Wi-Fi devices conform to the IEEE 802.11 standard, the reverse is not always true.
What is a WLAN?
A WLAN, or wireless local area network, is a computer network - or part thereof - that incorporates wireless devices. A conventional LAN (local area network) - as used in a home or small office network - incorporates two or more PCs connected to an Ethernet hub using network cables. This conventional LAN setup can be extended to include wireless devices using an access point. Although wireless networks can be completely independent of conventional networks, a WLAN usually forms part of an existing wired network
What are the benefits of wireless?
The primary reason for using wireless technology is the increased portability and convenience it provides. Notebook computers, for instance, often have integrated wireless network cards so that they can be used around the office or home without needing to be "wired-up" to a LAN.
What are the disadvantages of wireless?
The primary concession of using wireless networking is that data throughput is significantly slower than that offered by cabling. For example, most home and office LANs are capable of 100Mbs (although older devices may be limited to 10Mbs). By comparison, most wireless devices are limited to 11Mbs. Although speeds have been improved with recent developments such as Wireless-G and proprietary dual-channel modes, actual data rates are still poor compared to conventional cabled networks -- and the hardware is considerably more expensive.
Another downside is that wireless networks are more prone to attack and intrusion due to the nature of broadcasting data through the airwaves (more on this later).
Wireless standards
The communication protocols for wireless networking are defined by the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, which incorporates the 802.11a, 802.11b and 802.11g protocols (although several other standards are in progress). The most widely used of these is 802.11b (Wireless-B), which is more reliable than the faster 802.11a (Wireless-A) standard, and is more cost-effective to produce and operate as well. Wireless-G, or 802.11g, is a newer protocol that is becoming more widely adopted by vendors as it is capable of speeds up to 54Mbps rather than the 11Mbps of 802.11b devices.
It is very rare to find devices that support all three standards, but Wireless-G is designed to be backwards compatible with Wireless-B devices. Thus Wireless-B and Wireless-A devices will not work with each other, and neither are they compatible with Wireless-G devices.
It is worth noting that although the maximum speed provided by the IEEE standards is 54Mbps, some vendors (notably D-Link) have introduced proprietary protocols that effectively double the 802.11b rate to 22Mbps and the 802.11g rate to 108Mbps. Once again this is a theoretical throughput, with actual data rates being considerably lower. It is also worth bearing in mind that all wireless network devices must support the proprietary standard in order to function at these higher speeds.
How does wireless work?
Wireless technology utilises the license-free radio frequency bands around the 2.4GHz and/or 5GHz ranges. The 802.11b and 802.11g protocols use the 2.4GHz band whereas 802.11a uses the 5GHz band. The benefit of this frequency band is that it is longer-range, although it can be susceptible to interference from other RF devices such as cordless phones.
The 5GHz band used by 802.11a provides more bandwidth and less interference, but it requires more expensive hardware, larger silicon chips and higher power consumption. As a consequence, Wireless-B is by far the most popular standard, with the newer Wireless-G closing in fast.
What is the range of wireless?
Although wireless transmission ranges vary greatly and lowering the bandwidth will increase the coverage area, a standard 802.11b or 802.11g device will typically have a range of about 30m indoors and up to 120m line-of-sight outdoors. Devices using the higher frequency 802.11a protocol will have a range of about 12m indoors and 30m line-of-sight outdoors.
The main reason for the variance between indoors and line-of-sight coverage is that walls and other objects do impede the wireless signal. Because wireless transmissions are actually low frequency radio waves, they will pass through walls and other solid matter relatively easily. Bear in mind, though, that as the distance increases, the throughput decreases. This is because lower signal strength will result in dropped packets and result in a general decrease in network efficiency.
What can I do with wireless?
Common uses of wireless technology are roaming notebook computers that can share files and printers with a LAN, as well connect to the Internet via another computer or network. There are also some multimedia devices that support wireless networking, including digital cameras and hardware media players. These can be used to transfer video and audio files to and from a network for purposes ranging from security and surveillance to multi-room entertainment.
Makes Available For WireLess Lan
Toshiba
Netgear
Asus
D-Link
Corega
Intel-Pro
What is wireless?
Wireless networking allows computers and peripherals to communicate using radio frequency (RF) transmissions rather than over conventional network cabling. Using wireless Ethernet adaptors, any device capable of being used on a regular computer network can be accessed over a wireless connection for tasks ranging from file and printer sharing to multimedia and Internet access.
Wireless Ethernet technology is outlined by a set of standards called IEEE 802.11. Although other wireless technologies and protocols such as HomeRF and Bluetooth exist, the term wireless is generally used in reference to the IEEE 802.11 standards.
Wireless networking at home using equipment based on the 802.11 standard will be the focus of this Wireless LAN buying guide.
What is Wi-Fi?
Wi-Fi is a certification program established by the Wi-Fi Alliance to ensure the interoperability of wireless devices. Originally, the term Wi-Fi was intended to be interchangeable with 802.11b, but more recently it has broadened to cover any 802.11 network. Bear in mind that while all Wi-Fi devices conform to the IEEE 802.11 standard, the reverse is not always true.
What is a WLAN?
A WLAN, or wireless local area network, is a computer network - or part thereof - that incorporates wireless devices. A conventional LAN (local area network) - as used in a home or small office network - incorporates two or more PCs connected to an Ethernet hub using network cables. This conventional LAN setup can be extended to include wireless devices using an access point. Although wireless networks can be completely independent of conventional networks, a WLAN usually forms part of an existing wired network
What are the benefits of wireless?
The primary reason for using wireless technology is the increased portability and convenience it provides. Notebook computers, for instance, often have integrated wireless network cards so that they can be used around the office or home without needing to be "wired-up" to a LAN.
What are the disadvantages of wireless?
The primary concession of using wireless networking is that data throughput is significantly slower than that offered by cabling. For example, most home and office LANs are capable of 100Mbs (although older devices may be limited to 10Mbs). By comparison, most wireless devices are limited to 11Mbs. Although speeds have been improved with recent developments such as Wireless-G and proprietary dual-channel modes, actual data rates are still poor compared to conventional cabled networks -- and the hardware is considerably more expensive.
Another downside is that wireless networks are more prone to attack and intrusion due to the nature of broadcasting data through the airwaves (more on this later).
Wireless standards
The communication protocols for wireless networking are defined by the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, which incorporates the 802.11a, 802.11b and 802.11g protocols (although several other standards are in progress). The most widely used of these is 802.11b (Wireless-B), which is more reliable than the faster 802.11a (Wireless-A) standard, and is more cost-effective to produce and operate as well. Wireless-G, or 802.11g, is a newer protocol that is becoming more widely adopted by vendors as it is capable of speeds up to 54Mbps rather than the 11Mbps of 802.11b devices.
It is very rare to find devices that support all three standards, but Wireless-G is designed to be backwards compatible with Wireless-B devices. Thus Wireless-B and Wireless-A devices will not work with each other, and neither are they compatible with Wireless-G devices.
It is worth noting that although the maximum speed provided by the IEEE standards is 54Mbps, some vendors (notably D-Link) have introduced proprietary protocols that effectively double the 802.11b rate to 22Mbps and the 802.11g rate to 108Mbps. Once again this is a theoretical throughput, with actual data rates being considerably lower. It is also worth bearing in mind that all wireless network devices must support the proprietary standard in order to function at these higher speeds.
How does wireless work?
Wireless technology utilises the license-free radio frequency bands around the 2.4GHz and/or 5GHz ranges. The 802.11b and 802.11g protocols use the 2.4GHz band whereas 802.11a uses the 5GHz band. The benefit of this frequency band is that it is longer-range, although it can be susceptible to interference from other RF devices such as cordless phones.
The 5GHz band used by 802.11a provides more bandwidth and less interference, but it requires more expensive hardware, larger silicon chips and higher power consumption. As a consequence, Wireless-B is by far the most popular standard, with the newer Wireless-G closing in fast.
What is the range of wireless?
Although wireless transmission ranges vary greatly and lowering the bandwidth will increase the coverage area, a standard 802.11b or 802.11g device will typically have a range of about 30m indoors and up to 120m line-of-sight outdoors. Devices using the higher frequency 802.11a protocol will have a range of about 12m indoors and 30m line-of-sight outdoors.
The main reason for the variance between indoors and line-of-sight coverage is that walls and other objects do impede the wireless signal. Because wireless transmissions are actually low frequency radio waves, they will pass through walls and other solid matter relatively easily. Bear in mind, though, that as the distance increases, the throughput decreases. This is because lower signal strength will result in dropped packets and result in a general decrease in network efficiency.
What can I do with wireless?
Common uses of wireless technology are roaming notebook computers that can share files and printers with a LAN, as well connect to the Internet via another computer or network. There are also some multimedia devices that support wireless networking, including digital cameras and hardware media players. These can be used to transfer video and audio files to and from a network for purposes ranging from security and surveillance to multi-room entertainment.
Makes Available For WireLess Lan
Toshiba
Netgear
Asus
D-Link
Corega
Intel-Pro
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