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Stop devices from phoning home through router with iptables? (alien.top)

submitted 11 months ago by Clawkikker@alien.top to c/homelab@selfhosted.forum

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I have a router running asuswrt-merlin so I have access to ssh/iptable rules. Is there a way to make a device not able to access an external network or only allow the IP to connect to another IP e.g. 192.168.0.2 -> 192.168.0.3?

I don't have a router/switch with custom vlan capability, so I was wondering is there another way to do this?

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[–] Sindef@alien.top 1 points 11 months ago

Ah. I'm not sure on that specific setup sorry, but sounds like you may need to check what chains already exist and see if there are ones for the right network interfaces. I'm familiar with IPTables itself only, not the Asus openwrt!