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       snmptrapd  [common  options]  [-P] [-o file] [-s] [-f] [-p
       port] [-e] [-l [d0-7]] [-a] [-C] [-c confFile] [-F FORMAT]


       Snmptrapd  is  an  SNMP application that receives and logs
       snmp trap messages sent to the SNMP-TRAP port (162) on the
       local machine.

       The log messages are of the form:
       Sep 17 22:39:52 suffern snmptrapd: Cold Start
       Trap (0) Uptime: 8 days, 0:35:46

       Snmptrapd must be run as root so that UDP port 162 can  be


       In  addition to the command arguments described under snm­
       pcmd(1) the following arguments are understood:

       -P     Print the logged messages to stderr.

       -o file
              Logs messages to a given file.

       -p port
              Specifies the port to run on, if the default 162 is
              not desired.

       -s     Log  the  messages to syslog(8).  These syslog mes­
              sages are sent with the level of  LOG_WARNING,  and
              to the LOG_LOCAL0 facility (by default).  The demon
              will also fork away from its caller when the syslog
              facilities  are  used.   This is the default unless
              the '-P' flag or '-o' flag is used.

       -n     Don't do reverse translation  from  IP  address  to
              host name.

       -l [d0-7]
              Specifies  the  syslog  facility  to  use, demon or

       -a     makes snmptrapd ignore AuthenticationFailure traps

       -d     Causes the application to  dump  input  and  output

       -D     Turn debugging output on.

       -f     Don't  fork  away  from  the caller when using sys­

       %%     a literal %

       %t     decimal number of seconds since the operating  sys­
              tem's epoch

       %y     current year

       %m     current (numeric) month

       %l     current day of month

       %h     current hour

       %j     current minute

       %k     current second

       %T     up-time in seconds (in decimal)

       %Y     the year field from the up-time

       %M     the numeric month field from the up-time

       %L     the day of month field from the up-time

       %H     the hour field from the up-time

       %J     the minute field from the up-time

       %K     the seconds field from the up-time

       %A     agent's hostname if available, otherwise IP address

       %a     agent's IP address

       %B     PDU's hostname if available, otherwise IP address

       %b     PDU's IP address

       %N     Enterprise string

       %w     Trap type (numeric, in decimal)

       %W     Trap description

       %q     Trap sub-type (numeric, in decimal)

       %P     Security information from the PDU  (community  name
              for v1/v2c, user and context for v3)

       %v     list of trap's variables

       mally  a tab-separated list, but this flag changes it to a
       comma-separated one. The alternate form for the uptime  is
       similar to "3 days, 0:14:34.65"


       To  get a message like "14:03 TRAP3.1 from humpty.ucd.edu"
       you could use something like this:

              snmptrapd -P -F "%02.2h:%02.2j TRAP%w.%q from %A\n"

       If you want the same thing but in GMT  rather  than  local
       time, use

              snmptrapd -P -F "%#02.2h:%#02.2j TRAP%w.%q from %A\n"


       See the snmptrapd.conf(5) manual page.


       snmpcmd(1), syslog(8), variables(5)

                           07 Aug 2001               SNMPTRAPD(8)



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