broadcast data encryption

Johannes Berg johannes
Tue May 6 03:21:02 PDT 2008

> I see when wpa_supplicant finishes the 4-way-HS successfully the DHCP
> request gets an ack from the server, and the the station gets an IP
> assigned.
> The DHCP request is a broadcast frame, so does it get encrypted by GTK
> while leaving the station?
> OR it is still encrypted with pairwise TK ?

On the wireless level it's a unicast frame since it's sent to the AP.
STAs never send broadcast frames in a BSS, only the AP does.

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