Ethereal to detect Half Open Syncs

["Rivera Alonso, David" <drivera () iberdrola es>]

Hi,

my question is very simple: has any of you ever used Ethereal to detect Half
Open Syncs in a LAN.
Maybe it's easily done with a complex filter, but I don't know how to do it.

DeviceA sends a SYN to DeviceB
DeviceB answers with SYN ACK and saves this Half Open Connection in it's
memory table
DeviceA never answers with ACK

I need to detect which DeviceAs are in our LAN, to avoid memory problems in
DeviceB.

thanks a lot,

DAVID



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