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Tracing DHCP Processes

DHCP tracing operations track all DHCP operations and record them to a log file.

By default, no DHCP processes are traced. If you include the traceoptions statement at the [edit system services dhcp] hierarchy level, the default tracing behavior is the following:

Important events are logged in a file called dhcpd located in the /var/log directory.
When the file dhcpd reaches 128 kilobytes (KB), it is renamed dhcpd.0, then dhcpd.1, and so on, until there are 3 trace files. Then the oldest trace file (dhcpd.2 is overwritten). For more information about how log files are created, see the JUNOS System Log Messages Reference.
Log files can be accessed only by the user who configures the tracing operation.

You cannot change the directory in which trace files are located. However, you can customize the other trace file settings by including the following statements at the [edit system services dhcp traceoptions] hierarchy level.:



[edit system services dhcp traceoptions]
file filename <files number> <match regex> <size size> <world-readable | no-world-readable>;
flag {
all;
}

These statements are described in the following sections:

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