[PEN-TEST] IP fragmentation attack

[Dario Forte - Csi Member - <awandacomm () LIBERO IT>]

Greetings to all.

My lab is doing an specific  pen test against two different lan segment
(Firewall and Ids Protected), with Ip Frag Attack.
Does somebody can highlight some real recent news about this issue ?
We already know the lance's, rfc's and DugSong paper about these argument;we
would like to know more info (and opinions) about the fact  that IP
fragmentation works as firewalls are supposed to keep the state of a
connection.
Thanks in advance

dario