Labs · 3 scenarios
Access Control Lists
Learn how ACLs evaluate traffic in order, and where small mistakes quietly break a rule.
Beginner
Permit/deny basics
Understand the implicit deny that sits at the end of every ACL.
Intermediate
Rule order matters
See how a general rule placed too early can shadow a more specific one.
Advanced
Direction & placement troubleshooting
Diagnose an ACL applied in the wrong direction, and where standard ACLs belong.