HT204616: Wi-Fi base stations: Setting up and configuring a roaming network (802.11 a/b/g/n)

Learn about Wi-Fi base stations: Setting up and configuring a roaming network (802.11 a/b/g/n)
2008Convert
Level 1 (9 points)
Apple Watch

Q: The screen shots do not appear like this in El Capitan.

I understand the procedure, but I never see the option to create a public IP.

Airport Extreme, OS X El Capitan (10.11.2), Airport Extreme

Posted on Jan 2, 2016 12:21 PM

by Bob Timmons,Solvedanswer
Bob Timmons Bob Timmons
Level 10 (105,018 points)
Wireless
A:

Unfortunately, the support document that you are looking at is close to 4 years old, and it does not track with any of the versions of AirPort Utility that have been offered since Lion (10.7.x) was introduced over 3 years ago.

 

If you have....or can borrow.....a Mac running the Leopard (10.5.x) or Snow Leopard (10.6.x) operating systems, then things would track with the old support document.

 

Apple now uses a setting called DHCP and NAT, which in effect is the same thing as Share a Public IP address.

 

You will have a much easier time of things if you simply use Apple's setup "wizard" to configure the AirPorts on your network. The wizard will normally choose the correct settings for you.

Posted on Jan 5, 2016 12:33 PM

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2008Convert

Q: The screen shots do not appear like this in El Capitan.

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  • by AustinJGibson,

    AustinJGibson AustinJGibson Jan 2, 2016 12:28 PM in response to 2008Convert
    Level 4 (1,030 points)
    Jan 2, 2016 12:28 PM in response to 2008Convert

    Hi, try using these directions instead.

     

    AirPort base stations: Setting up and configuring an extended wireless network (802.11n) - Apple Support

     

    I hope you find this information helpful.

     

    Best regards,

    Austin

  • by Bob Timmons,

    Bob Timmons Bob Timmons Jan 2, 2016 12:54 PM in response to 2008Convert
    Level 10 (105,018 points)
    Wireless
    Jan 2, 2016 12:54 PM in response to 2008Convert
    I understand the procedure, but I never see the option to create a public IP.

    There is not an option to create a Public IP if you are asking about one of the Apple routers.

     

    A Public IP will only be assigned from your Internet Service Provider if you have a simple modem  (not a modem/router or gateway type of device). If you have a modem/router or gateway that is providing your Internet connection, you will receive a Private IP address from that device......unless your modem/router or gateway has some advanced settings to allow the Public IP to be "passed through" to the AirPort.

     

    We could probably offer more specific help or advice if we understood what modem......make and model number....that you were using and what AirPort that you might be trying to set up.

  • by 2008Convert,

    2008Convert 2008Convert Jan 5, 2016 12:18 PM in response to Bob Timmons
    Level 1 (9 points)
    Apple Watch
    Jan 5, 2016 12:18 PM in response to Bob Timmons

    I am using an Apple Airport Extreme.  I am extending the network with a Time Capsule and an Airport Express.  I have been using the simple option to extend the network wirelessly.  In reading the support documents, though, it says that it is more efficient to extend the network when the Time Capsule, for instance is wired to the network.  This creates a roaming network.  To do this the base station must have the option to create a public IP address. See Wi-Fi base stations: Setting up and configuring a roaming network (802.11 a/b/g/n) - Apple Support. Under Paragraph 3, these options do not exist in El Capitan's Airport Utility:

    All I have is the option for bridge mode.

     

    If you are configuring the primary Wi-Fi base station, set Connection Sharing to "Share a public IP address."

    If you are configuring the extended Wi-Fi base stations, set Connection Sharing to "Off (Bridge Mode)."

  • by Bob Timmons,Solvedanswer

    Bob Timmons Bob Timmons Jan 5, 2016 12:33 PM in response to 2008Convert
    Level 10 (105,018 points)
    Wireless
    Jan 5, 2016 12:33 PM in response to 2008Convert

    Unfortunately, the support document that you are looking at is close to 4 years old, and it does not track with any of the versions of AirPort Utility that have been offered since Lion (10.7.x) was introduced over 3 years ago.

     

    If you have....or can borrow.....a Mac running the Leopard (10.5.x) or Snow Leopard (10.6.x) operating systems, then things would track with the old support document.

     

    Apple now uses a setting called DHCP and NAT, which in effect is the same thing as Share a Public IP address.

     

    You will have a much easier time of things if you simply use Apple's setup "wizard" to configure the AirPorts on your network. The wizard will normally choose the correct settings for you.

  • by 2008Convert,

    2008Convert 2008Convert Jan 5, 2016 12:30 PM in response to Bob Timmons
    Level 1 (9 points)
    Apple Watch
    Jan 5, 2016 12:30 PM in response to Bob Timmons

    Thank you so much.  That clears it up.  I had to replace my Airport Extreme, when that article came up in the support documents.  I thought that it might improve the speed of the network.

  • by Bob Timmons,Helpful

    Bob Timmons Bob Timmons Jan 5, 2016 12:41 PM in response to 2008Convert
    Level 10 (105,018 points)
    Wireless
    Jan 5, 2016 12:41 PM in response to 2008Convert

    It will improve the speed of your network if you have 2 or more AirPort routers and they are connecting with each other using wireless.  Typically, about half of the potential speed on the network is lost when routers connect using a wireless connection between them.

     

    If you can connect AirPorts together using an Ethernet cable, there is no speed loss on the network.