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How to configure Airport Extreme to connect switch?

403 Views 3 Replies Latest reply: Aug 28, 2011 8:29 PM by Bob Timmons RSS
cclboss Level 1 Level 1 (10 points)
Currently Being Moderated
Aug 28, 2011 3:10 PM



I have an Airport Extreme (3rd generation) on firmware 7.4.2 and it is connected to the WAN to a Time Warner (Motorola) cable modem. I am able to establish a wireless LAN for the home. However, I also have wall ports (ethernet) throughout the home that are connected to a Linksys SD2008 switch. I am hoping to also connect the wall ports through the AEB so that wired computers can get onto the LAN and the Internet. I have checked that I get an IP from the Ethernet ports from the AEB but when I connect that to the switch, however, I do not seem to be able to get an IP on the ports on the switch itself (i.e. the wall ports do not assign any IP, just a self assigned IP address.)


Does anyone know if it is possible to connect a Linksys SD2008 switch directly to AEB (acting as a router)? Thanks.

MacBook Air, Mac OS X (10.7.1)
  • Bob Timmons Level 9 Level 9 (75,435 points)
    Currently Being Moderated
    Aug 28, 2011 3:27 PM (in response to cclboss)

    Suggest that you do some simple "tests" before trying to configure the entire setup.


    First, connect a laptop using a short, spare Ethernet cable to one of the LAN <-> ports on the AirPort Extreme and make sure that you can get an Internet connection this way. If you can, you know that the LAN port on the AirPort is working correctly.


    Then, connect the same short Ethernet cable to the switch and connect another spare Ethernet cable to the laptop. Make sure that you can get an Internet connection that way.


    If you can, then you know that the switch is functioning correctly and you can start to troubleshoot the wiring around the house. If you cannot get an Internet connection, that obviously means that the switch is not functioning correctly.


    Having wired many networks, I can say that the problems are almost always in the wiring...a bad cable or a bad Ethernet plug on either end. Take it one step at a time working out from the AirPort Extreme and test each connection, then add another device or cable and test, and then another, etc.

  • Bob Timmons Level 9 Level 9 (75,435 points)
    Currently Being Moderated
    Aug 28, 2011 8:29 PM (in response to cclboss)

    I've used both Netgear and Linksys Ethernet switches for years and never had any issues. I cannot explain why your switch does not appear to be working other than to say that stuff like this happens.


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