On Fri, Sep 05, 2008 at 11:29:22AM -0700, Gordon Messmer wrote: > Florin Andrei wrote: > > > >Maybe it does reply, just on a different interface? Is this a > >multi-homed system? Bonded interfaces? > > There's only one interface with an IP address, and only one route back > to the office. Sounds like the remote server may actually be busy and the number of outstanding connections is reaching the listen() backlog queue, so the remote server isn't doing an accept() and so the three way handshake isn't completing. That's what I'd anticipate if there was no NAT... -- rgds Stephen