VLAN routing
CCNA
The Anatomy of a Networking Halfway House: Where Layer 2 Meets Layer 3
Halfway house configurations occur when network devices operate between Layer 2 and Layer 3 functions, creating instability and security risks.
CCNA
IP Addressing Issues with VLAN and SVI: Diagnosis and Configuration
Two devices in the same VLAN with mismatched subnet configuration simply can’t communicate — no amount of correct VLAN assignment or trunk configuration fixes an IP addressing problem. This is one of the most common real-world VLAN issues, and it’s frustrating precisely because the Layer 2 configuration can be entirely correct while the problem sits...