CCNA: Named ACLs & Editing by Sequence Number

Bundle lab · $29.99

Hands-on ACL practice using named standard and extended ACLs, applied with correct placement and direction, edited by sequence number, and verified with counters and end-host tests. The lab adds a realistic NAT edge to expose order-of-operations pitfalls without obscuring data-plane ACL effects.

Learning objectives

• Author named standard and extended IPv4 ACLs, referencing entries by name rather than by number.
• Edit named ACLs by sequence number to insert and delete ACEs in place.
• Apply extended ACLs inbound near the source and standard ACLs outbound near the destination.
• Protect VTY access by binding a standard ACL as the inbound session filter on the router's VTY lines.
• Verify ACL order and matches with show access-lists and hit counters.
• Validate end-to-end effects with host-based tests and NAT-aware checks.

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.