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Regarding 802.11i PMK Caching

1 posts by 1 authors in: Forums > CWSP - Enterprise Wi-Fi Security
Last Post: November 11, 2008:

By annada November 11, 2008

Reply

Hi All,

I am having two 802.1X wireless profiles.First i connect first profile P1.After association and authentication, supplicant sends BSSID1,PMKID1 pair to WLAN driver for caching.Then connecting to second profile P2, and after association and authentication, supplicant sends BSSID2,PMKID2 pair to the driver for caching.
After that i can see supplicant sends a list of two elements of BSSIS,PMKID pair, in which PMKID for BSSID1 differs than the previous cached.
Like
1.BSSID1:PMKID3
2.BSSID2:PMKID2

And then when i am connecting with P1 again,it's adding PMKID3 in association request, and AP sends deauth, saying PMKID mismatch.

Can you please give some info, why supplicants modifies the PMKID for BSSID1.

Thanks
AP

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