Repetidor

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Traducción del artículo Repeater del wiki de DD-WRT en inglés --15 Julio 2010


Tú estás aquí: DD-WRT wiki mainpage / DD-WRT wiki en Español / HOWTOs Configuración / Enlazando Routers / Repetidor


Contents

Introducción

Si has llegado aquí desde Google te recomendamos que leas primero Enlazando Routers

Este es por lejos la más fácil y única solución que encontrado hasta el momento después de probar en varias unidades. Funciona con firmware original desde Buffalo y WRT en cualquier Linksys V2.4 (con V1.1 funciona también)

  • No no requiere hacer cambios en la configuración del router/AP anfitrión aunque algunas revisiones o ajustes pueden ser convenientes, como se indica a continuación.
  • Si tu AP anfitrión es 192.168.1.x, entonces tu repetidor debe ser subred 192.168.2.x o 192.168.69.1 or ... cualquier otra subred única en tu red. Si necesitas una solución tipo repetidor en la misma subred estás en el lugar equivocado. Necesitas leer primero Enlazando Routers...!

Preparación

Necesitas saber las credenciales de acceso del router anfitrión:

  • SSID
  • la configuración de seguridad
  • su dirección IP
  • prepara y verifica el DD-WRT para configurar como repetidor
    • Nota: Para que este trabajo, debes usar cualquier build V24 excepto V24-RC6.2. Hubo problemas con esa build!
    • Conecte por cable el futuro repetidor a una computadora
    • instale o actualice el firmware DD-WRT (si es necesario)
    • Hacer Hard reset or 30/30/30.
    • verifique cual chip usa su dispositivo y lea más abajo las consideraciones read Broadcom / Artheros
    • proceder con la instalación

Consideraciones Broadcom

Nota: Para que esto funcione, debe utilizar build 12548 o 12874 o 13525/13527. NUNCA use v24 SP1

Consideraciones Atheros

No hay un modo "repetidor" las unidades con Atheros, pero aún puede usarse como repetidor, establezca la interfaz original como "cliente" y haga conectarse al AP, a continuación, cree una interfaz virtual para difundir el nuevo SSID.

Configurar Repetidor

Para configurarlo como repetidor haga lo siguiente:

  1. Haga Hard reset or 30/30/30.
  2. En Wireless -> Basic Settings/Inalámbrico -> Config Básica:
    • Wireless mode/Modo Inalámbrico: Repeater
    • Wireless Network mode/Modo de Red Wi-Fi: (debe ser igual al anfitrión)
    • Wireless Network Name (SSID)/Nombre de Red Wi-Fi (SSID): el SSID de la red a conectarse
    • Save/Grabar Config.
    • Agregue 1 interfaz virtual
    • Ingrese una nueva (única) SSID de su elección
    • Save/Grabar Config.
  3. En Wireless -> Wireless Security/Seguridad Inalámbrica:
    • Physical Interface wl0:
      • Introduzca los ajustes necesarios para conectarse a la WLAN que le gustaría repetir (si no hay seguridad, deje desactivados... pero considere activarla tanto en el AP anfitrión como en el Repetidor)
      • Save/Grabar Config.
    • Virtual Interface wl0.1:
      • Seleccione el mejor modo de seguridad, el cual debe ser WPA2-AES de ser posible.
      • Ingrese la clave de seguridad
        • Nota: Cuando se usa seguridad en las interfaces física y virtual, por lo general debe utilizar el mismo tipo de seguridad, y exactamente la misma contraseña tanto en el ssid físico como en el virtual. Si no se puede conectar cuando se trata de seguridad diferente o frases de paso, que los hacen idénticos.
      • Save/Grabar Config.
  4. * Nota: Si tiene problemas al instalar por primera vez, una práctica reconocida es configurar sin ningún tipo de cifrado (es decir, configuración de seguridad a "Desactivado") al principio, hasta que se confirme que la unidad está funcionando correctamente, y configurar el cifrado como un paso más adelante.
  5. En Setup -> Basic Setup/Setup -> Setup Básico:
    • Network Setup/Setup de RED:
      • Aquí defines la subred propia del repetidor
      • Establece la dirección IP de una subred diferente de la AP anfitrión que desea repetir
      • Ejemplo: si el AP anfitrión es 192.168.1.x, asigna al repetidor 192.168.2.1
      • Configura el rango DHCP si lo deseas
    • Save/Grabar Config.
  6. En Security/Seguridad:
    • Desmarca todos los items en la sección "Block WAN Request/Bloqueo de Peticiones WAN" (excepto Filter Multicast/Filtrado Multicast )....ENTONCES deshactiva Firewall SPI
      • Note: Si estás muy preocupado por la seguridad, un repetidor todavía podría funcionar bien con el servidor de seguridad SPI habilitado. Si usted decide dejarla activada pero eperimenta problemas, tenga en cuenta este paso.
    • Save/Grabar Config.
  7. En Administration/Administración:
    • Ingrese toda la información necesaria, cambie la contraseña GUI,...
    • Click en el botón Apply Settings/Aplicar

Pruebas

  • Después que el Repetidor haya reiniciado, desconecte la alimentación y deje que se enfríe un poco ... (Dejar que expire ARP)
  • Conecte nuevamente la alimentación y deje que arranque
  • Vea si usted puede hacer ping a 192.168.1. x y accede a un sitio web externo, por ejemplo Google o Yahoo


--15 July 2010 Image:Mypage puc.gif
Please note: This template application {{Under construction}} should be removed from the article in a few days.


Footnotes

When the unit has logged onto the Host WLAN and has begun repeating its signal, you will see the DHCP address (generally in the 192.168.1.100-150 range) in the upper right-hand corner as the WAN address. As long as you see quad zeros up there (0.0.0.0), you are not linked and are not repeating. You might click the "reload) button on your browser once or twice to make sure the WAN IP is fresh while you are making changes. Make sure your repeater is within radio range of your host network; the WRT54GL has a great radio in it, and if you want heat, you can go to Wireless/Advanced Settings and jack Xmit Power up as high as 100 and the transmit PA will still run linear enough to support 54 MBit/sec OFDM. Once you are up and running (repeating), you can get to the repeater's web GUI from your local intranet by entering its private IP address in your web browser.

But for the pièce de résistance, go into the Host WLAN router's web GUI (NAT/QoS/Port Forwarding on DD-WRT.v24 beta) and set up a port forward so you can check on and fully access and control your new repeater from Outside, i.e. via the Internet. Look up the address that DHCP has assigned to your new repeater (the name you entered in Setup/Basic Setup/Optional Settings/Host Name will appear in the DHCP clients table of the Host router under Status/Sys-Info), and write it down. Then go to Port Forwarding and click "Add." Make the forwarded port (Port from) something you can remember easily, like 8128 if you found your repeater on 192.168.1.128, for example. Click Both for Protocol, enter the IP private IP address of your repeater in the IP Address box, enter Port 80 (http default) in the "Port to" box. Or if you want to be tricky, enter something besides 80, but just be sure this matches the active Web GUI port number on your repeater). Lastly, be sure to check "Enable," and then click "Save Settings" (v23) or "Apply" (v24 beta). Then go Outside, and take a look at your main WLAN router at its public IP address (or DDNS link), and then take a peek at your repeater's Web GUI on the same address (or DDNS link) followed by :8128, e.g. http://yourwlan.dyndns.org/ for your Host router and http://yourwlan.dyndns.org:8128/ for the repeater. But you knew that already.

Voilà!

Tips/Gotcha's/Problems

  • When MAC Address Cloning is enabled, the Wireless Security Mode of the repeated AP has to match that of the Virtual AP. So if the AP you wish to repeat has WEP encryption you need to use WEP for the Virtual AP. Without MAC Address Cloning, you may select any Wireless Security Mode for the Virtual AP, and it need not match the repeated AP.
  • If you use Static Leases to control your Repeater's IP addresses...please note that with the new RC6 builds the WLAN MAC address is now duplicated to the WAN MAC address. This will require you to change the MAC address value in the Static Lease section on the Host AP (if you use this mode for your managed network)....RC5 and earlier used MAC+1 for Wireless...with RC6+ it will now be MAC+2.
  • I have seen on some networks where Repeater mode will not provide a reliable connection if the STP function is Enabled on the Basic Setup page...Set it to Disabled and see if your connection improves.
  • I had a problem with Post RC7-9068 builds where if you would manually disconnect from the Virtual SSID and try to reconnect, it would not. Power cycling the router was the only work around. Make sure that the "Use DNSmasq for DHCP", "Use DNSmasq for DNS", and "DHCP Authoritative" are all check marked on the Setup>>Basic Setup page to correct this.
  • You need to be on a different subnet then the host AP you are connecting to (Physical network)...try setting it to something like 192.168.69.1 on the Setup>>Basic Setup tab (if a physical of 192.168.1.1 is used for the host AP) - 09/17/07
  • If the host AP settings Wireless>>Basic Settings>>Wireless Network Mode is set to "G-only" then your repeater must also be set the same way....otherwise you will not make the connection from the repeater side - 09/22/07
  • Tests have shown that there is no way to lock a Repeater onto a particular channel - 2/12/2009
  • I was not able to get online with the Gateway and the Local DNS containing my router's IP as Stuckeymax suggested. Instead I left them as 0.0.0.0 and all was good.
  • Also take note of the fact that all repeaters, including this Wlan Repeater mode, will sacrifice half of the bandwidth available from the primary router for clients wirelessly connected to the repeater. This is a result of the repeater taking turns talking to not just one partner, but to two, and having to relay the traffic between them. As long as your bandwidth requirements are within this halved bandwidth amount there will be little or no reduction in "speed".
  • I tried a daisy chain of 4 routers AP-Rpt-Rpt-Clt, G-Only WPA2, all DHCP client from the previous, all managing it's own subnet with it's own DHCP-DNSMasq Authoritative (192.168.[1-2-3-4].0/24. Worked fine even with SPI firewall defaults enabled. No issues to manage all nodes from the net with the help of Port Forwardings and Port Range Forwardings. Wrt54GL1.1 dd-wrt v24 post sp1 build10776
  • I tried getting this working on the WNDR330 with build 13064 with no success. I could connect when security was turned off but not with it. I then downloaded the 13491M build from here [[1]] and after following the steps listed above, including 2 hard reboots everything was fine.

See also

Repeater Bridge