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msjyoo/Setting up Steam In-Home streaming in a network with port protection.md

Created August 11, 2017 05:53
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Setting up Steam In-Home streaming in a network with port protection.md

If you have a gaming machine and a laptop, and want to use steam in-home streaming, but you only have 1 internet port in your room, and you only have a switch at your disposal? And it turns out just switching everything together doesn't work because your 1 port has port security enabled?

VLAN can be used to make sure that the port-security port doesn't see the computer while still all connected to the same switch.

1 - College LAN 2 - Laptop 3 - Gaming computer

Set up a VLAN between 1,2 and 2(tagged),3(PVID set to this VLAN). Pretty standard. But on my TL-SG105E switch, there always exists a default VLAN which broadcasts to every other port. So the issue I encountered was that as 1 sends its packets, my supposedly segregated gaming computer will receive those packets. Of course, since it can't reply back to port 1, the port-security held. But I was getting others' computers showing up on Steam on my gaming computer. This told me that there was some segregation leaking happening.

The solution was to also set a PVID on port 1, so that every packet sent from it only gets sent to the (1,2) VLAN.

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