On Thu, Dec 15, 2005 at 06:46:02PM +0100, Florian Weimer wrote: > > It may be nothing. The fact that it showed up as filterd in the nmap > > output indicates that nmap didn't received a TCP RST packet back when it > > tried to contact that port. That may mean you have iptables configured > > to DROP packets to that port. > > It could also mean that the the ISP filters 1720/TCP, in order to > prevent its customers from using VoIP. Good point. I suspect that's more likely. noah
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