| US 7,451,316 B2 | ||
| Method and system for pre-authentication | ||
| David E. Halasz, Stow, Ohio (US); Nancy Cam Winget, Mountain View, Calif. (US); and Robert C. Meier, Cuyahoga Falls, Ohio (US) | ||
| Assigned to Cisco Technology, Inc., | ||
| Filed on Jul. 15, 2004, as Appl. No. 10/891,924. | ||
| Prior Publication US 2006/0013398 A1, Jan. 19, 2006 | ||
| Int. Cl. H04L 9/00 (2006.01) | ||
| U.S. Cl. 713—171 [713/168; 380/47] | 30 Claims |
| 1. A method for roaming from a parent access point to a neighboring access point by a wireless station, comprising:
pre-authenticating with the neighboring access point while associated with the parent access point, the pre-authenticating
comprises:
sending a rekey request to the neighboring access point, the rekey request comprises an incremented rekey number, and
receiving a rekey response to the rekey request, the rekey response comprises a one time ticket that includes the incremented
rekey number; and
roaming to the neighboring access point after pre-authenticating using a two-way handshake with the neighboring access point,
the two-way handshake comprises:
sending a reassociation request to the neighboring access point, the reassociation request comprising the one time ticket,
and
receiving a reassociation response from the neighboring access point.
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