Two questions: Open ports only for a specific LAN IP, DNSCry

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ddwrtuser02
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Joined: 09 Jul 2017
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PostPosted: Wed Jul 12, 2017 0:04    Post subject: Two questions: Open ports only for a specific LAN IP, DNSCry Reply with quote
Hi guys I got two questions:
1) Is there any way to open some ports only for a specific MAC Address or Local IP? I got only one gaming PC and Overwatch requires 52,000 ports open in order to play (source: https://us.battle.net/support/es/article/300479 ) and I really don't want all those ports open on the entire network. Is there any way to open those ports only on, lets say 192.168.1.109?

Here is what I tried, with no success:

Code:
-A INPUT -p tcp --destination-port 1723 -m mac --mac-source AA:FF:AA:FF:AA:FF -j ACCEPT
-A INPUT -p tcp --destination-port 502 -m mac --mac-source AA:FF:AA:FF:AA:FF -j ACCEPT


And

Code:
iptables -A INPUT -p tcp -m multiport --dports 1723,502,501,110 -s 192.168.1.109 -j ACCEPT


None of these worked.

2) About DNSCrypt. I can't even use the Simple DnsCrypt unless I remove all the firewall rules (allowing every port). I tried opening port 53, 443, 5353 and a few others and it just doesn't work. Is there any other port I should open to make DNScrypt work?

Thanks
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