Setup Linksys Router With Radius Server Authentication

Yesterday we started setting up our Linksys router to use enterprise authentication using a radius server. today we will make the radius server talk with the Linksys router. read the first article on this topic on the following link Setup Linksys Router With Radius Server

Configuring The Linksys Router

login to your Linksys router and on the Setup tab make sure you set the following configurations:

  1. Internet Connection type : Automatic Configuration – DHCP
  2. Router Name: anything
  3. Host Name : anything
  4. Domain Name : anything
  5. MTU : Auto
  6. Local IP Address: Enter an IP address from your network here
  7. DHCP Server : Disable

Click on Save Settings after making the changes.

note. your settings could be different, but just make sure you enter a local network IP address for local IP, and disable DHCP server. otherwise your router won’t work.. also don’t forget to plug-in the Ethernet cable on the router on one of the LAN ports, not the WAN port, otherwise you won’t be able to connect using the new IP address.

now, click on the Wireless tab, and set the following settings:

  • Wireless Network Mode : Mixed
  • Wireless Network Name (SSID): type your chosen SSID here
  • Wireless Channel: Leave the default if you want, otherwise change it to something else.
  • Wireless SSID Broadcast : Enable Click on the Save Settings after making the changes.

Now click on the Wireless Security option. and make sure you have the following settings:

  1. Security Mode : WPA Enterprise
  2. WPA Algorithms : TKIP
  3. RADIUS Server Address: enter the IP address of your radius server here
  4. RADIUS Port: Leave the 1812 port there
  5. Shared-key : enter your shared key here.
  6. Key Renewal Timeout: leave the default value (3600 seconds)

Wireless Security

click on the Save Settings button after you finish changing the settings.

Configuring The Radius Server

Now, that we have setup the Linksys router, we need to configure the Internet Authentication service to talk back to the Linksys router.

On your Windows Server, go to Administrative Tools and open the Internet Authentication Service and select the Radius Clients folder on the left panel:

radius clients

then right-click on an empty area on the right panel, and select New Radius Client:

as Friendly name type something easy to identify for you, and for Client Address ( IP DNS ) type the IP address of the Linksys router.

click on Next.

on the next screen, select Radius Standard on the Client-Vendor option. enter the Shared secret key. this key is the shared key we entered on the Linksys router wireless security window . make sure the option Request must contain the message authentication attribute is unchecked.

click on the Finish button after you have entered all the settings.

that’s it, that should take care of the radius server and the router communication. on the next post we will setup the group policy to authenticate our domain users.

More Routers & Switches Tutorials

  • Trac


    Great article! I was wondering if the next post has been published?

    My Question is this, I am trying to redirect all the users connecting to my wireless connection to my local webserver.

    Do you think thats possible?


  • brad

    well whers the next post? If your going to say your going to post some thing you should.

  • Nelson

    Hi Brad, the next post is still pending.. I been busy doing some other stuff. expect for the next post soon..

    thanks for coming in.

  • muhammad Mughal

    i like ur Effort to Assist online…:-)
    i wish to Make RADIUS server at my PC using Windows Xp…
    how could i do it…
    which software or Application i Required…
    i wana know fom A to Z…
    do me a mail if u don mind plzzzz. 🙂
    i hope u won't mind to Help out me
    Best Regards

  • BBB

    When will the next post be put up?

  • Nelson

    Hi everyone I have been busy with personal stuff that I forgot about the blog at all. but now I'm back to my geeky way – which is the real me.

    expect the following posts on this subject very soon.. and then some more.

  • Henry

    Is the second post coming soon?

  • AWESOME! I've been assigned with a task and this would be my walkthrough!

  • Ryan

    I am using a linksys router w/ RADIUS connected to a SBS 2003 Server. I am trying to accomplish what this article covers, but I need the next steps to complete. I hope the second post comes soon…today is 01/05/10.

  • Great article. good work, is there a way to direct all those that connect to my network to a log in page?

  • Daryl Fisk

    This is for Muhammad Mughal some posts above. You can set up a radius server in XP by using Tekradius, and it is free. You can find it on Google.

  • adrian

    i need the next part or post post we will setup the group policy to authenticate our domain users.


  • Xisco

    Hi Nelson,
    I too need the next post, are you sure that's possible this config?

    Thanks and byes from Spain

  • Felipsorz

    você ja fez o proximo post, estou precisando para fazer um trabalho da faculdade!

    • Nelson

      Eu estava pensando em escrever o resto do setup ontem. em que você precisa de ajuda na configuração?

      • Richard

        Muchas gracias Nelson, por favor would you please let us know how to set this up on a Win7.

  • salman

    Next post mate 🙁

  • Herro


    It’s been two years. Don’t think he’s gonna post the next step.


    • Nelson

      Hi Herro, do you need help with your Enterprise Wireless Setup?

  • osmond

    is he still alive?

    • Nelson

      Yes Osmond, I’m still alive and well… I’m rewriting the posts for windows 2008 now… Hopefully they will be published around 2020. Jejeje

  • Sirag

    why a need a “Shared-key : enter your shared key here.”and when i will use it ?!