Topic

Access Control practice labs

1 hands-on Access Control scenario you build in your own Cisco Modeling Labs instance and grade against the answer key. Access Control configuration and troubleshooting practice for CCNA and CCNP.

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IntermediateLocked

Restricting NTP with an access-group

Configure a Cisco IOS router as an authoritative NTP master and restrict which clients it will serve using an NTP access-group with a standard ACL. One shared LAN (no routing) connects three routers through a Layer-2 switch. Only R2 is authorized to receive time from R1; R3 is denied. Learners deploy, verify, and troubleshoot the access-group behavior.

CCNA40 min5 objectives