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Quick VLAN Question

post #1 of 3
Thread Starter 
On a physical network, how many entities need to be VLAN aware? For example, if we assume a basic network of a pfSense router and a managed switch, is there a special requirement that the NICs on the router need to be VLAN-capable? Obviously the managed switch will need to be, but what about nodes downstream of the switch? Suppose downstream of the managed switch I have an unmanaged switch; will that "dumb" switch belong to the VLAN of the port it's connect to on the managed switch?

What about hosts connected to the "dumb" switch, such as printers and workstations? Will they be on the same VLAN as the "dumb" switch? Or is all VLAN information lost when a "dumb" switch is involved?

Many thanks. smile.gif
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post #2 of 3
Part 1 depends on the equipment. If you have a layer 3 switch doing routing you don't even need subinterfaces on a connected router to route between VLANs.

You can set up an access port for an unmanaged switch and all of the members downstream will be a part of that VLAN.

You can compare it to having a normal client PC connected to a switchport in access mode, which out of the box would have no sort of VLAN awareness. The only difference is that you'll see a few MAC addresses hanging off of an access port, but they'll all be on the same VLAN/subnet.
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post #3 of 3
Thread Starter 
@beers

Cheers for that. smile.gif
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