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System Logs and Error Messages C-1
v1.0, September 2009
Appendix C
System Logs and Error Messages
This appendix explains provides examples and explanations of system logs and error message.
When applicable, a recommended action is provided.
This appendix contains the following sections:
• “System Log Messages” on page C-2.
• “Content Filtering and Security Logs” on page C-12.
• “Routing Logs” on page C-16.
This appendix uses the following log message terms.
Table C-1. Log Message Terms
Term Description (or Subfield and Description)
[UTM] System identifier
[kernel] Message from the kernel.
CODE Protocol code (e.g., protocol is ICMP, type 8) and CODE=0 means successful reply.
DEST Destination IP Address of the machine to which the packet is destined.
DPT Destination port.
IN Incoming interface for packet.
OUT Outgoing interface for packet.
PROTO Protocol used.
SELF Packet coming from the system only.
SPT Source port
SRC Source IP Address of machine from where the packet is coming.
TYPE Protocol type