Port Membership & Trunking: VLAN Assignment + Verification

Bundle lab · $29.99

Hands-on CCNA VLAN and trunking lab: assign access ports by interface range, build and harden 802.1Q trunks, set a dedicated native VLAN, correct a misassigned user port, and verify VLAN membership. Includes a cross-switch path with a router-on-a-stick gateway, tests from real hosts, and troubleshooting of trunk allow-lists and native VLAN mismatches.

Learning objectives

• Create and name VLANs on Cisco IOS Layer-2 switches
• Assign multiple access ports to a VLAN using interface ranges
• Configure a hardened 802.1Q trunk with explicit allowed VLANs and a non-default native VLAN
• Build router-on-a-stick subinterfaces for per-VLAN gateways
• Verify VLAN membership with show vlan brief and show interfaces switchport
• Troubleshoot reachability failures caused by misassigned access ports, missing VLANs on trunks, or native VLAN mismatch

Troubleshooting focus

• Verify every link's interface status and IP addressing (`show ip interface brief`) and correct any interface that is down or misaddressed.
• Confirm each device's running configuration matches the lab objective, and bring any interface, route, or service that is not in its expected state back to health.
• Trace end-to-end reachability with ping/traceroute and isolate the first hop where forwarding fails.