In Cisco LAN switch environments, the native VLAN is typically untagged on 802.1Q trunk ports. This can lead to a security vulnerability in your network environment.

But while VLANs are relatively simple to understand, there's always something I've managed to miss on the first try, whether ...

Given a Cisco Layer 3 (L3) switch and 5 unmanaged switches, learn how to create 10 VLANs from our routing and switching expert, Sudhanshu Gupta.