How to block device from WAN only?

Alta Control
1

I want my TV to be able to access my local network however not the public internet, this is so I can have my TV access my media server but not the public internet

2

I actually tried this once with a Route10 and setting a firewall rule seemed to do the trick. Something like this I believe:

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Hope that helps!

3

Works like a charm, thanks!

4

I have my route10 connected to my modem which is not in pass through. This presents a issue where there are RFC-1918 addresses that I may still want to access beyond the WAN port. In this case WAN Traffic gets more selective rather than allow anything. If you needed your devices to reach the other LAN networks beyond the Route10 WAN port but not be able to reach the internet you could create a rule for that device allowing RFC 1918 first and then another rule blocking anything else. Hope that helps anyone else who might have a similar situation.

Create a Firewall group for 1918:

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5

Or just leave the Gateway out in Manual configuration