TCP SYN cookies might offer some protection against this. It is implemented in the 2.4 series Linux kernels. Michael On Mon, Oct 28, 2002 at 05:10:40PM -0500, Aldo S. Lagana wrote: > http://www.kb.cert.org/vuls/id/539363 > > I haven't seen any reference to this in the list - sorry for the spam if > it has been discussed - anybody have an idea? > > All the linux vendors listed so far have no response - RedHat and SuSE. > NetBSD and OpenBSD claim invulnerable. > > -- matighet@bbn.com BBN Technologies