N10-009 - Network Security - Section 4.3

Apply network security features, defence techniques, and solutions, including ACLs, segmentation, port security, NAC, and VPNs.

Apply the controls that harden a network: access control lists (ACLs) to filter traffic, network segmentation and screened subnets to contain breaches, and port security with 802.1X network access control (NAC) to block unauthorised devices. Select the appropriate remote-access protection - IPsec or SSL/TLS VPNs - and apply device hardening such as disabling unused services and changing default credentials.

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