Knowledgebase Category: Troubleshooting IPsec VPNs

Troubleshooting IPsec VPNs

• IPsec Logging
• Tunnel does not establish
• Tunnel establishes but no traffic passes
• Some hosts work, but not all
• Connection Hangs
• “Random” Tunnel Disconnects/DPD Failures on Low-End Routers
• Tunnels Establish and Work but Fail to Renegotiate
• Tunnel Establishes When Initiating, but not When Responding
• IPsec Log Interpretation