What is afterburner dd wrt

You can decrease the beacon interval, which increases the rate of beacons. This will make the association and roaming process very responsive; however, the network will incur additional overhead and throughput will go down. In addition, stations using power save mode will need to consume more power because they'll need to awaken more often, which reduces power saving mode benefits. In an idle network, beacons dominate all other traffic. Guide to tweaking: The amount of overhead that the transmissions of beacon frames generate is substantial; however, the beacon serves a variety of functions.

For example, each beacon transmission identifies the presence of an access point. How a beacon interval impacts the client By default, radio NICs passively scan all RF channels and listen for beacons coming from access points in order to find a suitable access point. When a beacon is found, the radio NIC learns a great deal about that particular network. This enables a ranking of access points based on the received signal strength of the beacon, along with capability information regarding the network.

The radio NIC can then associate with the most preferable access point. After association, the station continues to scan for other beacons in case the signal from the currently-associated access point become too weak to maintain communications. As the radio NIC receives beacons from the associated access point, the radio NIC updates its local clock to maintain timing synchronization with the access point and other stations.

In addition, the radio NIC will abide by any other changes, such as data rate, that the frame body of the beacon indicates. The beacons also support stations implementing power saving mode. Do clients send beacon frames too?? As apposed to beacons sent out by AP's, Clients send out "probe request" frames; It's like an opposite to a beacon, clients use a probe request packets to play there role in the An A client may send a probe request frame to trigger a probe response when the client needs to obtain information from another client on the same WLAN.

A client, for instance, will broadcast a probe request when using active scanning to determine which access points are within range for possible association. Some sniffing software e. A DTIM field is a countdown field informing clients of the next window for listening to broadcast and multicast messages.

Its clients hear the beacons and awaken to receive the broadcast and multicast messages. According to the Since beacon frames are sent using the mandatory Client devices that awaken from power-save mode may find that they have to wait longer than expected to receive the next beacon frame.

Client devices, however, compensate for this inaccuracy by utilizing the time-stamp found within the beacon frame. The In power-save mode, a client device may choose to sleep for one or more beacon intervals waking for beacon frames that include DTIMs. When the DTIM period is 2, a client device in power-save mode will awaken to receive every other beacon frame. Upon entering power-save mode, a client device will transmit a notification to the access point, so that the access point will know how to handle unicast traffic destined for the client device.

The client device will begin to sleep according to the DTIM period. For example, laptops may require relatively high communication throughput and may have low sensitivity to power consumption. Therefore, a relatively low DTIM period, for example 1, may be suitable for laptops. However, cellphones may require relatively low communication throughput and may be operated by batteries of relatively low capacity. Therefore, a relatively high DTIM period, for example 8, may be suitable for cellphones.

Therefore, a medium DTIM period, for example a value of 4, may be suitable for these devices. Consequently, different client devices in power-save mode will all wake up for the same beacon frames according to the DTIM period. Currently, a network manager may need to balance the conflicting requirements for power consumption and communication throughput when in power-save mode of client devices in different wireless networks when configuring the DTIM period of an access point.

A network manager may consider the requirements of power consumption and communication throughput of client devices in a particular wireless networks when determining which DTIM period to configure for which SSID. A higher DTIM period may increase the potential savings in power consumption but may reduce the communication throughput, and vice versa.

If you experience a high packet error rate, you may slightly increase the Fragmentation Threshold. Setting the Fragmentation Threshold too low may result in poor network performance. Only minor modifications of this value are recommended. The Threshold for fragmentation to occur is a This is an optional feature, the To use fragmentation means to divide Each fragment consists of a MAC Layer header, frame check sequence FCS , and a fragment number indicating its ordered position within the frame.

Because the source transmits each fragment independently, the receiving destination replies with a separate acknowledgement for each fragmen. Because of sending smaller frames, collisions are much less likely to occur.

If you find a relatively large number of collisions, then try using fragmentation. This can improve throughput if the fragmentation threshold is set just right. If the network packet being sent is smaller or fragmented to a size lower than the preset RTS threshold size, the CTS Protection mode mechanism will still not be enabled for that packet.

If the packet size is equal to or less than threshold the data frame gets sent immediately. Wireless access points work by bridging the wireless port to the wired switch ports and router port. Just MAC addresses. The wireless bridge builds a bridging table consisting of a table of "heard" or sniffed MAC addresses that appear on various ports.

Think of the router having just 3 available ports; Wireless, Ethernet switch, and router port. If the destination MAC address of a port is shows up in the MAC address table as sitting on a specific port, only that port gets the traffic. Broadcasts, which have no destination MAC address are sent to all ports. When this feature is enabled the software builds a logical rule or filter for these MAC addresses and ports that says:. Not a very complex rule, but one which totally prevents wireless client to client traffic.

Not even broadcasts will go from wireless client to client. The difference is in "reliability" or ability to survive in a multi-path environment. Click Network Neighborhood in a motel sometime, see if the motel needs to set AP isolation.

This setting is critical for proper, smooth, fast Wi-Fi performance. This can take some time to find the proper setting but its worth it, you can more easily find the correct setting by using a This is best done with the client less than 10 feet from the AP with clear line of sight. Some routers with chains set incorrectly such as D-Link DIR C1, will deny connections to clients, heavily reduce throughput, and other errors. Default is not always right!

The physical interface is going to be receiving the signal from your main router. Plug in the SSID, configure the network mode, and decide if you wanted it to be bridged connected with the old network or unbridged isolated from it. Next, come up with a new SSID for your repeater. This way, you can choose which access point to use, depending on where you are. Lastly, we need to make sure that your repeater is connected to your main router.

Then, you can connect to your new repeater and test it out. Change the mode to Repeater Bridge. Browse All iPhone Articles Browse All Mac Articles Do I need one? Browse All Android Articles Browse All Smart Home Articles Customize the Taskbar in Windows Browse All Microsoft Office Articles What Is svchost. Browse All Privacy and Security Articles Browse All Linux Articles Browse All Buying Guides. Best iPhone 13 Pro Case. Best Bluetooth Headphones for Switch.

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Best iPhone 13 Cases. Another company, Sveasoft, picked up on the results and created its own third-party firmware aka Alchemy. The project was successful enough that DD-WRT has become the basis for other firmware created by router manufacturers themselves. While DD-WRT has its roots in open source, it has a more commercial flavor than some of the projects in the same vein.

OpenWrt is open source firmware similar to DD-WRT, but with a markedly different approach to its construction and deployment. The OpenWrt project home page unpretentiously describes the technology as "a Linux distribution for embedded devices," but that humble label doesn't cover the whole picture.

Because of all this, setting up and running OpenWrt can become a much more involved process, since the user has the freedom to make most any changes they want directly inside OpenWrt.

But it also means access to a much broader range of components. By the same token, OpenWrt components tend to be more frequently updated than those for DD-WRT, while its package manager makes it easier for users to take advantage of those updates. For me, the single biggest reason to go with an open firmware like DD-WRT or OpenWrt is the balance it strikes between convenience and openness.

I can go out and buy a router that runs open firmware out of the box -- such as the Buffalo router I currently use -- and either upgrade it at my leisure to other open firmware builds or rely on Buffalo's own official albeit proprietary builds.

In many respects, using an open firmware is analogous to the use of an alternative Android ROM, like CyanogenMod , where an older phone can be kept current long after the manufacturer decides it's not worth supporting anymore. In the past I've bought a router, upgraded it faithfully as new revisions to the firmware come out, then ground my teeth in disgust when I discovered, 18 months or two years later, that it's no longer supported.

This is dismaying, especially in a post-Heartbleed world where an unpatched embedded device can be bad news. The only thing worse than no protection at all is a false sense of security, so I like the idea of using software that has at least a modicum of third-party oversight. A full list of the features in DD-WRT would spill over to pages on end, but here's a rundown of the most significant and widely used items:.

Note that this isn't an exhaustive or exclusive list. That said, thanks to OpenWrt's packaging system and faster pace of development, a great many more features are to be found in OpenWrt's ecosystem.