http://www.nmrc.org/pub/present/shmoocon-2006-sn.ppt describes what
seems to explain the appearance of IETF6x named computer-to-computer
wireless networks at IETF meetings. Apparently, there is a feature
that has systems automatically advertise the last AP SSID after
(involuntary) disconnection. The slides are skimpy on details, but
provide a bit more background than the usual "turn of ad-hoc mode"
exhortations at IETF meetings.
Henning
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