Block all traffic of client except NTP

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raqua
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Joined: 13 Feb 2014
Posts: 58

PostPosted: Mon Jun 29, 2015 7:05    Post subject: Block all traffic of client except NTP Reply with quote
Hi all,

I have this web camera, which I do not trust at all as the SW is terrible and I want to block it from accessing internet, so it works only inside my local network. However, this camera does not have good internal clock and relies on synchronization with NTP. So I would like to block all communication of this camera outside LAN, except for NTP sync.
I have been trying to find or learn how to do this with iptables, but I failed. Smile
Hopefully someone here with proper iptables knowledge will be able to help. Rules should work only for particular client specified (in order of preference) by hostname, mac or ip.

Thanks.

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raqua
DD-WRT User


Joined: 13 Feb 2014
Posts: 58

PostPosted: Thu Jul 02, 2015 7:46    Post subject: Reply with quote
Anyone please?
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Netgear R7000 running BS DD-WRT build 26446 (home)
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