Here are the advanced setting you can do on the rt2500, with explanations. The explanations are copy/pasted from the serialmonkey forum (a bit down in this post- AuthMode {OPEN,SHARED,WPAPSK} Set Authentication mode
Code: $ iwpriv eth2 set AuthMode=WPAPSK - TxRate {0~12} Set TxRate
Code: $ iwpriv eth2 set TxRate=12
0:Auto, 1:1Mbps, 2:2Mbps, 3:5.5Mbps, 4:11Mbps, 5:6Mbps, 6:9Mbps, 7:12Mbps, 8:18Mbps, 9:24Mbps, 10:36Mbps, 11:48Mbps, 12:54Mbps
The default setting is Auto. The range is from 1 to 54Mbps. The rate of data transmission should be set depending on the speed of your wireless network. You can select from a range of transmission speeds, or keep the default setting, Auto, to have the Router automatically use the fastest possible data rate and enable the Auto-Fallback feature. Auto-Fallback will negotiate the best possible connection speed between the Router and a wireless client. - BGProtection {0~2} Set 11B/11G Protection
Code: $ iwpriv eth2 set BGProtection=2
0:Auto, 1:Always on, 2:Always off
The default value is set to Disabled. When set to Auto, a protection mechanism will ensure that your Wireless-B devices will connect to the Wireless-G Router when many Wireless-G devices are present. However, performance of your Wireless-G devices may be decreased. - TxBurst {0,1} Set TxBurst Enable or Disable
Code: $ iwpriv eth2 set TxBurst=1
0:Disable, 1:Enable
Allows packet bursting which will increase overall network speed. - RTSThreshold {1~2347} Set RTS Threshold
Code: $ iwconfig eth2 RTSThreshold 2347
This value should remain at its default setting of 2347. The range is 0-2347 bytes.
Should you encounter inconsistent data flow, only minor modifications are recommended. If a network packet is smaller than the preset RTS threshold size, the RTS/CTS mechanism will not be enabled. The Router sends Request to Send (RTS) frames to a particular receiving station and negotiates the sending of a data frame. After receiving an RTS, the wireless station responds with a Clear to Send (CTS) frame to acknowledge the right to begin transmission. - FragThreshold {256~2346} Set Fragment Threshold
Code: $ iwconfig eth2 FragThreshold 2346
This value should remain at its default setting of 2346. The range is 256-2346 bytes. It specifies the maximum size for a packet before data is fragmented into multiple packets. 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. - ApClient {0,1} Set ApClient mode
Code: $ iwpriv eth2 set ApClient=1
Creates a separate virtual network for your wireless network. When this feature is enabled, each of your wireless client will be in its own virtual network and will not be able to communicate with each other. You may want to utilize this feature if you have many guests that frequent your wireless network. - TxPreamble {0~2} Set TxPreamble
Code: $ iwpriv eth2 set TxPreamble=1
0:Preamble Long, 1:Preamble Short, 2:Auto
Preamble is the first subfield of PPDU, which is the appropriate frame format for transmission to PHY(Physical Layer). The Short Preamble option improves throughput performance. - CountryRegion {0~7} Set country region
Code: $ iwpriv eth2 set CountryReqion=2
0: use 1 ~ 11 Channel 1: use 1 ~ 11 Channel 2: use 1 ~ 13 Channel (Europe) 3: use 10, 11 Channel 4: use 10 ~ 13 Channel 5: use 14 Channel 6: use 1 ~ 14 Channel (Japan) 7: use 3 ~ 9 Channel
The US uses channels 1 ~ 11, but I'm not sure if they use 0 or 1
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