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jamie777

16 posts

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#175669 7-Jul-2015 20:03
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Hi guys,

I have a NetComm Wireless (white modem supplied by Orcon), with Fibre connection, IP phone etc.

I also have a NAS with some wireless cameras and use a plex media server.

I've noticed that every couple of days ports are getting opened automatically under NAT > Virtual Servers.  The ports opened are random high ports, but I've seen 8080 & 443 and point to the IP camera addresses.  I've also seen ports opened for games that the kids play on their iPads and the Plex media server.

I've changed the username/password on the modem multiple times but can't figure out why this keeps happening?  There's nothing under the 'port triggering' section in the modem either.  

Any ideas?




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chevrolux
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  #1338950 7-Jul-2015 22:46
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Your router supports UPnP and it is obviously 'enabled' so that is how it has 'permission'. Applications can simply use it to do stuff. If you didn't have it enabled on the router when you go and play Call Of Duty your 'nat type' will show as 'strict' because the xbox is firewalled off from the world. When UPnP is enabled the port forward gets created and you connect to all the other hax0r call of duty dudes around the world.
However, just about all the cheap chinese IP camera makers have put it in to their software too because it makes it easy for joe bloggs to have remote access in to his network and see the cameras. The downside is the rest of the world also can have access and many haven't changed their admin passwords.

What kind of NAS have you got? Most of them have VPN servers built in which is a great secure way to remotely access your home network.

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