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Re: closing unwanted ports - and what is 1720/tcp filtered H.323/Q.931

Noah Meyerhans wrote:

> 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

will check with demon to see if this is the case for my connection

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