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Old September 22nd, 2006   #12
Join Date: Jun 2006
Posts: 11

Try this:

Pick a UID that has its last 2 bits as zero's and will create a discovery response that has its checksum containing its last 2 bits zeros.

lets say 0xaabbccddeef0 does that. (I don't have the time to find a real one, you might have to jimmy some other bits to get the checksum to end in two zero bits but no problem right?)

Now lets say the system has the following devices attached:


A perfectly aligned discover next response will appear to have not been a collision but instead it will look like a response from 0xaabbccddeef3.

(this assumes that the line forms a positive or, it might actually work in the reverse, where 0's dominate)

In any case, trying to mute a device that isn't actually on the link is frustrating to say the least.
sondericker is offline   Reply With Quote