intermediate·20 min·Paid
ACL: Block a Whole Subnet #1
A contractor network can reach a protected subnet that should remain isolated.
Scenario
Beacon Logistics is separating a newly connected contractor network from internal operations. The contractor hosts can currently reach systems in a protected subnet, but the router and other approved paths must continue working. Restrict the affected source network as intended and confirm that the boundary blocks the whole subnet rather than only one test host.
Learning objectives
- acl
- iptables
- packet filtering
Topology and configuration
This environment contains 3 devices (2 Hosts, 1 Router). You configure and troubleshoot the networking skills listed above.
Curriculum topics
Certification objectives
- ccna-200-301 · Objective 5.6: Configure and verify access control lists
- comptia-network-plus-n10-009 · Objective 4.3: Apply network security features, defense techniques, and solutions