CCNA Foundations: Named ACLs — Readable Rules & Editing by Sequence

Today's daily lab

Intermediate CCNA lab focused on named extended ACLs. You will permit a specific business flow (HTTP from the branch client to a data center web server) while denying ICMP to that server, apply the ACL inbound on the branch LAN interface, and validate from real endpoints. The baseline provides static routing and full connectivity; your task is to implement a readable, ordered named extended ACL with a remark and bind it correctly so the intended policy is enforced.

Learning objectives

• Design a readable named extended ACL with an intent-focused remark
• Order ACEs correctly and understand the implicit deny
• Apply an extended ACL inbound near the source on the correct interface
• Verify policy from endpoints and interpret ACL hit counters
• Edit ACLs by sequence to insert or adjust rules without rewriting the list

Troubleshooting focus

• Identify incorrect ACL placement or direction and its impact on observed traffic
• Differentiate routing failures from ACL drops using traceroute, ping, and show commands
• Recognize the effect of ACE ordering and missing explicit permits (implicit deny)