Using class to match iPhones, Wiis etc

Peter Laws plaws at
Thu May 7 21:01:28 UTC 2009

Randall C Grimshaw wrote:
> The parameter request list (used as a fingerprint) of such Apple iDevices appears to be 
1-3-6-15-119-252. The Packetfence project seems to have done a good job of 
classifying these fingerprints.


> But I am in the camp that finds it hard to believe that DHCP is sagging under the weight of your wireless infrastructure.

You're right, it's not. I didn't choose my words carefully enough.  It's a 
limitation in an FWSM (a DHCP relay agent) that the requests pass through 
that's giving us fits.  The DHCP server doesn't see the requests at times.

Peter Laws / N5UWY
National Weather Center / Network Operations Center
University of Oklahoma Information Technology
plaws at
Feedback? Contact my director, Craig Cochell, craigc at Thank you!

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