[FUG-BR] WDS

[Thiago Gomes]

Pq vc está mudando para sua rede para Mikrotik ao inves de continuar
com FreeBSD ?

2009/1/27 William David FUG-BR <fugbr em biosystems.ath.cx>:
> WDS é  complicado acho que seja  furada
>
> WDS can be used to provide two modes of wireless AP-to-AP connectivity:
>
>    * Wireless Bridging in which WDS APs communicate only with each
> other and don't allow wireless clients or Stations (STA) to access
> them
>    * Wireless Repeating in which APs communicate with each other and
> with wireless STAs
>
> Two disadvantages to using WDS are:
>    * The maximum wireless effective throughput is halved after the
> first retransmission (hop) that is made. For example, in the case of
> two routers connected via WDS, and communication is made between a
> computer that is plugged into router A and a laptop that is connected
> wirelessly using router B's access point, the throughput is halved,
> because router B has to retransmit the information during the
> communication of the two sides. However, in the case of communications
> between a computer that is plugged into router A and a computer that
> is plugged into router B, the throughput is not halved since there is
> no need to retransmit the information.
>    * Dynamically assigned and rotated encryption keys are usually not
> supported in a WDS connection. This means that dynamic Wi-Fi Protected
> Access (WPA) and other dynamic key assignment technology in most cases
> can not be used, though WPA using pre-shared keys is possible. This is
> due to the lack of standardization in this field, which may be
> resolved with the upcoming 802.11s standard. As a result only static
> WEP or WPA keys may be used in a WDS connection, including any STAs
> that associate to a WDS repeating AP.
>
> Recent Apple base stations allow WDS with WPA, though in some cases
> firmware updates are required. Firmware for the Renasis SAP36g Super
> Access Point and most third party firmwares for the Linksys
> WRT54G(S)/GL support AES encryption using WPA2-PSK Mixed Mode
> security, and TKIP encryption using WPA-PSK, while operating in WDS
> mode. However, this mode may not be compatible with other units
> running stock or alternate firmwares.
>
>
> Melhor você pensar em arquitetura MESH. se este conceito de rede wifi
> ja esteja em desuso.
> .
>
> 2009/1/27 Cobausque <cobausque em ig.com.br>:
>> Pessoal gostaria de uma referencia..
>>
>> Estou migrando minha rede pra Mikrotik para atender alguns clientes .. mas
>> gostaria de uma referencia sobre montar em WDS esempenho é bom ??  um enlace
>> pequeno e já possuo uma estrutura de servidores em FREEBSD que já estão em
>> funcionamento..
>>
>> Pra quem usa conseguiria ai uns 8 ful .. eu consigo ?
>>
>> -------------------------
>> Histórico: http://www.fug.com.br/historico/html/freebsd/
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>>
>
>
>
> --
> - = - = - = - = - = - = - = - = - = -
> <----.      Of course it runs                William David Armstrong
> <----|==========================   Bio Systems Security Networking
> <----'                  FreeBSD           MSN / GT  biosystems  gmail . com
>  http://biosystems.ath.cx:8080/  http://biosystems.broker.freenet6.net/
> --------------------------------------
> -------------------------
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>