These log messages refer to the IP6IN4 (6in4 Tunnel Events) category.
2.33.1. failed_to_setup_6in4_tunnel (ID: 07800001)
- Default Severity
- WARNING
- Log Message
- Failed to setup open tunnel from <local_ip> to <remote_ip>
- Explanation
- Unable to setup 6in4 tunnel with endpoint.
- Firewall Action
- drop
- Recommended Action
- Check CONN usage and local routing.
- Revision
- 1
- Parameters
- local_ip
remote_ip
2.33.2. 6in4_resolve_successful (ID: 07800002)
- Default Severity
- NOTICE
- Log Message
- 6in4 tunnel <iface> resolved <remotegwname> to <remotegw>
- Explanation
- The 6in4 tunnel succesfully resolved the DNS name of remote endpoint.
- Firewall Action
- None
- Recommended Action
- None
- Revision
- 1
- Parameters
- iface
remotegwname
remotegw
2.33.3. 6in4_resolve_failed (ID: 07800003)
- Default Severity
- WARNING
- Log Message
- 6in4 tunnel <iface> failed to resolve <remotegwname>
- Explanation
- The 6in4 tunnel failed to resolve the DNS name of the remote endpoint.
- Firewall Action
- None
- Recommended Action
- Make sure you have configured the DNS name of the remote endpoint and the DNS servers correctly.
- Revision
- 1
- Parameters
- iface
remotegwname
2.33.4. 6in4_invalid_sender_encap (ID: 07800004)
- Default Severity
- WARNING
- Log Message
- Invalid IPv6 sender entering 6in4 tunnel <senderip>. Packet dropped
- Explanation
- Packet should be dropped according to RFC 4213 since the source IP address is invalid.
- Firewall Action
- drop
- Recommended Action
- Check routing configuration or modify the IPv6 addresses of the clients.
- Revision
- 1
- Parameters
- senderip
- Context Parameters
- Packet Buffer
2.33.5. 6in4_length_error (ID: 07800005)
- Default Severity
- WARNING
- Log Message
- 6in4 packet length error. Packet dropped
- Explanation
- Received 6in4 packet with length error.
- Firewall Action
- drop
- Recommended Action
- Check 6in4 endpoint configuration.
- Revision
- 1
- Context Parameters
- Packet Buffer
2.33.6. 6in4_send_routing_loop_detected (ID: 07800006)
- Default Severity
- WARNING
- Log Message
- Routing loop detected. 6in4 packet send failed
- Explanation
- Routing loop to the 6in4 tunnel endpoint detected.
- Firewall Action
- drop
- Recommended Action
- Check local routing.
- Revision
- 1
- Context Parameters
- Packet Buffer
2.33.7. 6in4_invalid_sender_decap (ID: 07800007)
- Default Severity
- WARNING
- Log Message
- Invalid IPv6 sender in 6in4 tunnel <senderip>. Packet dropped
- Explanation
- Packet should be dropped according to RFC 4213 since the source IP address is invalid.
- Firewall Action
- drop
- Recommended Action
- Check 6in4 endpoint configuration.
- Revision
- 1
- Parameters
- senderip
- Context Parameters
- Packet Buffer
cOS Core 15.00.01 Log Reference Guide
