On 7 Jul, 2005, at 21:10, Steven M. Bellovin wrote:
Real firewalls pass inbound traffic because a state table entry exists. NATs do the same thing, with nasty side-effects. There is no added security from the header-mangling.
To which Len Bosak quipped a few years ago: "If you don't know its name, you can't curse it".
Sean.