Native LAN: Ethernet VLAN devices treat all untagged frames as belonging to the native LAN by default. The native LAN is VLAN 1, although administrators can change this default number.

Learn about the top 5 VLAN setup errors, including native VLAN issues, incorrect port assignments, missing management VLANs, ...

VLAN 1 is the default VLAN for ports and switches. Unfortunately, because its characteristics are widely known (or easy to guess), it represents a potential security vulnerability.

To be able to manage your switch — even if all ports are left in default VLAN 1 — you still need to configure an IP address on the “vlan 1” switch interface, which is, of course, in VLAN 1.

You're missing the fact that pretty much all vendors recommend never using the default VLAN for anything except management. Dell seems to have just taken the next step of enforcing it I guess. In ...

I have a connection coming into the house, then into a Synology router. I have 2 VLANS set up, the default one and a 2nd one called Secure. I don't have Ethernet run in my house but we have 6 coax ...