Select three actions to secure a router.

Securing a router involves multiple layers of defense. Controlling access to the router, such as implementing strong authentication, access control lists (ACLs) for management interfaces, and physical security, prevents unauthorized users from gaining control. Restricting SNMP (Simple Network Management Protocol) access, often by using ACLs and strong community strings or SNMPv3 with encryption and authentication, limits information disclosure and prevents unauthorized configuration changes. Encrypting all passwords, including local user accounts and those used for protocols like SSH or enable passwords, protects credentials from being compromised if the configuration is accessed. Restricting all traffic through the router is impractical as it would prevent the router from performing its primary function of forwarding network traffic. Enabling all unused services creates unnecessary attack vectors and increases the router's vulnerability footprint. Disabling logging hinders troubleshooting and forensic analysis, making it difficult to detect and respond to security incidents.