Appendix B. DHCP Audit Log Identifiers
DHCP audit logging provides a wide variety of informative messages about the state of the DHCP server, the protocol interactions, the address pool, DNS interactions, authorization, and more. The audit log is a text file that contains audit entries one per line. Each audit entry has a two-digit numeric identifier that indicates the type of message being logged. (See Chapter 5 for a description of the structure of audit log entries.)
Table B-1 lists all of the log identifiers in numeric order and provides a short description of the purpose of each type of log entry.
Table B-1. Audit log identifiers
Identifier | Description |
|---|---|
00 | Logging started at the specified date and time. |
01 | Logging stopped at the specified date and time. |
02 | The DHCP server suspended logging
because available disk space is less than the value set in the
|
10 | The specified IP address was leased to the client. |
11 | The client renewed the lease on the specified address. |
12 | The client released the lease on the specified address. |
13 | The specified IP address conflict was detected. |
14 | All addresses in the scope’s address pool have been exhausted. |
15 | The specified lease request was denied. |
16 | The specified address lease was deleted. |
17 | The specified address lease has expired. |
20 | The specified BOOTP address was leased to the client. |
21 | The specified dynamic BOOTP address was leased ... |