Hi,
Not sure how you're getting on with this (or even if you've dumped it totally after your boot problems!) but I have spent the last few weeks playing with ICMP code off and on.
This weekend I wrote a standalone ping system (ppPing -
http://www.purplepixie.org/phpping/) which should offer must more robust functionality for example missing out-of-sequence, mis-identified or ICMP errors.
I rather hope this will one and for all resolve any ICMP issues (but that is probably wishful thinking).
Anyway - 1.09.0a now uses ppping in place of the old internal ICMP functionality and is probably worth a shot at trying.
Release:
http://www.purplepixie.org/freenats/release.php?version=1.09.0aDirect Download:
http://www.purplepixie.org/freenats/downloads/freenats-1.09.0a.tar.gzCheers,
Dave.