Search This Blog

Tuesday 30 October 2012

Cisco WLC keeping web auth persistent

How would you keep client’s web authentication persistent even after client gets disconnected or de authenticated?

Device: Cisco WLC 5508

Code: 7.0.116.0

Recently after setting up the Wireless Network and Web Authentication Redirect option on a Cisco Wireless LANcontroller – 5508 I had an issue where after approximately an hour mobile clients specially mobile phones would disconnect and they would have to go through the Web Authentication Redirect page again and again. This was very annoying. Basically on Cisco WLC 5508 webauth devices timeout and they would have to re authenticate.
After doing lots of research and trying to change the time out settings under User Idle Timeout, ARP timeout, Session timeout nothing worked. Finally after working with Cisco TAC and doing a debug on the client “debugclient mac-id. I noticed that after an hour WLC sends the new EAP key to the client. 


Updated broadcast key sent to mobile 00:23:76:D5:68:61
Cisco WLC 5508 tries this 3 times and after the 3rd time it gives up and considers the client not active any more and sends a de authentication packet, next Cisco WLC 5508 removes the client completely. Hence why when the clientcomes back they have to go through the Web Authentication Redirect Page again because key they have is old and is not valid any more.


Retransmit failure for EAPOL-Key M5 to mobile mac-id, retransmit count 3, mscb deauth count 0

Sent Deauthenticate to mobile on BSSID ap-mac-id slot 0(caller 1x_ptsm.c:534)

*apfReceiveTask: Jun 16 10:47:30.960: client-mac client-ip RUN (20) Deleted mobile LWAPP rule on AP [ap-mac]

Solution

Solution is to increase the broadcast key time interval. I used the following command to accomplish this. PS: This option was not available in the GUI with the code I am using so the only way for me to do it was via the Cisco WLC 5508 Command Line Interface, this applies globally to all the WLAN’s as of this code:
config advanced eap bcast-key-interval seconds (120 to 86400)

31 comments:

  1. Hi, does the CLI ensures that the client doesn't need to go through web-auth again? Can you please explain what's the outcome if i set it to 86400 as opposed to the user-idle timeout which i've alrady set to 86400.

    ReplyDelete
  2. Wow what an article, how long did it take you to copy it from mine lol? Really dude you are a CCIE or working on CCIE and you would steal someone else' blog and won't even bother to notify them, ask permission and/or give credit? Shame on you.

    ReplyDelete
  3. Online Cisco Training, Online Linux Training, Online Ethical Hacking Training, Online CCNP Training, Online CCNA Training, Online MCSE Training, Online CCIE Training India, MCITP Training, Online VMware Training and more offered by Zoom Technologies by highly proficient CISCO certified experts - Hyderabad, India.

    ReplyDelete
  4. Great Job!!!
    This post is very wonderful. your steps is really helpful. i like this post and i feel very happy to read this article...
    thanks for sharing...
    more info:- Cisco Router Support

    ReplyDelete
  5. Really thanks to post this blog its very useful for me.

    cisco wireless training


    ReplyDelete
  6. Hello all, I need the other way around.
    We have an open SSID with web autentication. The APs ask to an external dhcp server the IP to assign to the wireless device.
    The problem is that I see many clients connected automatically to the SSID, obtaining the IP address from DHCP but never autenticate. So they occupy an IP without working, running the dhcp out of scope with no further ip to assign.

    So the question is: "is there a way to completely disconnect (with IP release) an inactive client?"

    Thanks in advance
    Stefano Chiesa

    ReplyDelete
  7. This information is impressive; I am inspired with your post writing style.Its a wonderful post and very helpful, thanks for all this information.
    SAP HR Training in Chennai
    SAP SD Training in Chennai

    ReplyDelete
  8. Nice tutorial. Thanks for sharing the valuable information. it’s really helpful. Who want to learn this blog most helpful. Keep sharing on updated tutorials…
    Click here:
    python training in rajajinagar
    Click here:
    python training in jayanagar

    ReplyDelete
  9. This is very good content you share on this blog. it's very informative and provide me future related information.
    Blueprism training in Chennai

    Blueprism training in Bangalore

    Blueprism training in Pune

    ReplyDelete
  10. Good Post! Thank you so much for sharing this pretty post, it was so good to read and useful to improve my knowledge as updated one, keep blogging.
    DevOps online Training|DevOps Training in USA

    ReplyDelete
  11. This is most informative and also this post most user friendly and super navigation to all posts... Thank you so much for giving this information to me.. 

    best rpa training in chennai |
    rpa training in chennai |
    rpa training in bangalore
    rpa training in pune | rpa online training

    ReplyDelete
  12. Thanks for the informative article. This is one of the best resources I have found in quite some time. Nicely written and great info. I really cannot thank you enough for sharing.

    Data Science Training in Chennai | Data Science course in anna nagar
    Data Science course in chennai | Data science course in Bangalore
    Data Science course in marathahalli | Data Science course in btm

    ReplyDelete
  13. I believe there are many more pleasurable opportunities ahead for individuals that looked at your site.
    java training in tambaram | java training in velachery

    java training in omr | oracle training in chennai

    ReplyDelete
  14. After reading your post I understood that last week was with full of surprises and happiness for you. Congratz! Even though the website is work related, you can update small events in your life and share your happiness with us too.
    angularjs Training in bangalore

    angularjs Training in bangalore

    angularjs Training in chennai

    python training in pune

    python training institute in chennai

    python training in Bangalore

    ReplyDelete
  15. I wanted to thank you for this great read!! I definitely enjoying every little bit of it I have you bookmarked to check out new stuff you post.is article.
    angularjs online training

    apache spark online training

    informatica mdm online training

    devops online training

    aws online training

    ReplyDelete
  16. Hey, would you mind if I share your blog with my twitter group? There’s a lot of folks that I think would enjoy your content. Please let me know. Thank you.
    Java Training in Chennai | J2EE Training in Chennai | Advanced Java Training in Chennai | Core Java Training in Chennai | Java Training institute in Chennai

    ReplyDelete
  17. I am really thankful for posting such useful information. It really made me understand lot of important concepts in the topic. Keep up the good work!
    Oracle Training in Chennai | Oracle Course in Chennai

    ReplyDelete
  18. Great Article. it was so informative and keep sharing. Home lifts India

    ReplyDelete
  19. It’s always so sweet and also full of a lot of fun for me personally and my office colleagues to search your blog a minimum of thrice in a week to see the new guidance you have got.
    Best PHP Training Institute in Chennai|PHP Course in chennai

    Best .Net Training Institute in Chennai
    Big Data Hadoop Training in Chennai
    Linux Training in Chennai
    Cloud Computing Training in Chennai

    ReplyDelete
  20. Amazing article. Your blog helped me to improve myself in many ways thanks for sharing this kind of wonderful informative blogs in live. I have bookmarked more article from this website.really nice to see.
    Ai & Artificial Intelligence Course in Chennai
    PHP Training in Chennai
    Ethical Hacking Course in Chennai Blue Prism Training in Chennai
    UiPath Training in Chennai

    ReplyDelete
  21. I like the helpful info you provide in your articles. I’ll bookmark your weblog and check again here regularly. I am quite sure I will learn much new stuff right here! Good luck for the next!
    Java Training in Chennai

    Java Training in Velachery

    Java Training in Tambaram

    Java Training in Porur

    Java Training in Omr

    Java Training in Annanagar

    ReplyDelete
  22. I wish to show thanks to you just for bailing me out of this particular
    trouble.As a result of checking through the net and meeting
    techniques that were not productive, I thought my life was done.
    mysql training in chennai
    unix training in chennai
    Software training institute in chennai

    ReplyDelete
  23. This weblog is as a matter of fact first-rate. The sponsorship here will for all intents and purposes be of some work with to me. much obliged to you!. DmartDraw Activation Code

    ReplyDelete
  24. OmniPage Ultimate break here we will talk about a surprising and beneficial gadget that on account of its unprecedented show is astoundingly famous from wherever the world. Free Download Omnipage For Windows 7

    ReplyDelete