TCP packets don't flow from external hosts to WinVista clients behind

Hello... I've got a strange trouble... FreeBSD 6.2 amd64 as nat-router: rl0 85.249.249.249 -> ISP fxp0 10.0.0.1 -> My Internal Net natd/ng_nat ipfw: allow all from any to any WinXP client machines work fine behind nat, but WinVista, FreeBSD (5.5/6.2) clients don't. It's very strange but it's unab

Re: TCP packets don't flow from external hosts to WinVista clientsbehind

> > MIZ0 <[EMAIL PROTECTED]> wrote: > > > > > Could be TCP window scaling. See > > > http://en.wikipedia.org/wiki/TCP_window_scale_option > > > Or the plain old PMTUD problem described in > > > > > http://www.cisco.com/en/US/tech/tk870/tk877/tk880/technologies_tech_note09186a008011a218.shtml#