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Forward port below 1000

 
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bluenote



Joined: 24 Apr 2015
Posts: 1

PostPosted: Fri Apr 24, 2015 8:18 pm    Post subject: Forward port below 1000 Reply with quote

Hi

upnpc works great for me, thanks.
However, there seems to be some security built in that I don't understand how to modify.

upnpc -r 80 TCP
fails with code 718 ConflictInMappingEntry

I realize this is a security measure, how do I bypass this though?

thanks
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miniupnp
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Joined: 14 Apr 2007
Posts: 1454

PostPosted: Sat Apr 25, 2015 10:42 am    Post subject: Re: Forward port below 1000 Reply with quote

bluenote wrote:
Hi

upnpc works great for me, thanks.
However, there seems to be some security built in that I don't understand how to modify.

upnpc -r 80 TCP
fails with code 718 ConflictInMappingEntry

I realize this is a security measure, how do I bypass this though?

thanks
it depends on your router and its configuration.
Traditionnaly ports blow 1024 are considered as "system reserved" or "privilegied ports". Only ports above 1024 are "unprivilegied" and open to all users/applications.
That is why P2P applications usually use ports > 1024.
Anyway port 80 is probably already in use on your router.
But in anycase, most router wont (or should not) allow to mapping on ports < 1024 through NAT-PMP or UPnP.
Use the configuration interface if your really know what you are doing.
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