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Forum Discussion
Advanced 802.1Q VLAN Doesn't Block Untagged Traffic?
I think the answer might be obvious. Lower-end Netgear switches are not managed using VLAN traffic, so they allow all untagged traffic to pass through. Is this correct?
For example, a port is c...
For example, a port is configured with VLAN ID 10 for untagged traffic and its PVID is 10. It will tag the traffic correctly and all the traffic will go to the correct subnet. However, if I manually configure my IP, I can access any other device on the link that is not VLAN aware.
As schumaku says, these layer 2 switches don't care about subnets, which are layer 3.
The VLAN establishes a layer-2 broadcast domain. Protocols like ARP will only find devices on the VLAN (no matter what subnet they are on).
No idea what you mean by "any other device on the link" - are these other devices on the same VLAN? Or are they on a different VLAN?
If they are not on VLAN 10, then the router upstream of the switch is likely routing the traffic.
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