Secure-Access Troubleshooting Capstone: SSH VTY Fix

Bundle lab · $29.99

Advanced CCNP management-plane troubleshooting on a single IOS router. You inherit a pre-broken remote-management config where SSH access is completely failing despite a hostname, domain name, and local admin user. Two independent VTY faults are seeded: the wrong transport and an incorrect login method. Your job is to diagnose with show commands, fix both issues, and validate SSH access from the ADMIN workstation.

Learning objectives

• Diagnose and correct VTY transport misconfiguration that prevents SSH access
• Identify and fix an incorrect VTY login method so that local-user authentication is used
• Confirm SSH service readiness (hostname, domain name, RSA keys) using show commands
• Validate secure remote access from a Linux admin host and verify privileged access

Troubleshooting focus

• SSH negotiation fails or is refused despite IP reachability
• Login method does not reference the intended authentication source
• Service readiness gaps: RSA keys not present or SSH service not enabled
• Line authentication behavior differs from expectations due to VTY configuration