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.TH SNMPTRAP 1 "11 May 2000"
.UC 4
.SH NAME
snmptrap, snmpinform - sends an SNMP trap to a manager
.SH SYNOPSIS
snmptrap -v 1 [-Ci] [common arguments] enterprise-oid agent generic-trap specific-trap uptime [objectID type value]...
.PP
snmptrap -v [2c|3] [-Ci] [common arguments] uptime trap-oid [objectID type value]...
.PP
snmpinform -v [2c|3] [common arguments] uptime trap-oid [objectID type value]...
.SH DESCRIPTION
Snmptrap is an SNMP application that uses the TRAP Request to send
information to a network manager.  One or more fully qualified
object identifiers can be given as arguments on the command line.  A type
and a value must accompany each object
identifier.  Each variable name is given in the format specified in
.IR variables (5).
.PP
When invoked as
.I snmpinform,
or when -Ci is added to the command line flags of snmptrap, it sends
an INFORM-PDU, expecting a response from the trap receiver,
retransmitting if required.  Otherwise it sends an TRAP-PDU or
TRAP2-PDU.
.PP
If any of the required version 1 parameters, 
.IR enterprise-oid ,
.IR agent ,
and
.I uptime
are specified as empty, it defaults to
.IR "1.3.6.1.4.1.3.1.1 (enterprises.cmu.1.1)" ,
.IR hostname ,
and
.I host-uptime
respectively.
.PP
The
.I type
is a single character, one of:
.RS
.PD 0
.TP 3
.B i
INTEGER
.TP 3
.B u
UNSIGNED
.TP 3
.B c
COUNTER32
.TP 3
.B s
STRING
.TP 3
.B x
HEX STRING
.TP 3
.B d
DECIMAL STRING
.TP 3
.B n
NULLOBJ
.TP 3
.B o
OBJID
.TP 3
.B t
TIMETICKS
.TP 3
.B a
IPADDRESS
.TP 3
.B b
BITS
.PD
.RE
.PP
For example
.PP
.I "snmptrap -v 1 manager public enterprises.spider test-hub 3 0 '' interfaces.iftable.ifentry.ifindex.1 i 1"
.PP
will send a generic link-up trap to manager, for interface 1.
.PP
If the network entity has an error processing the request packet, an error
packet will be returned and a message will be shown, helping to pinpoint in what
way the request was malformed.  If there were other variables in the request,
the request will be resent without the bad variable.
.PP
.SH SEE ALSO
snmpcmd(1), variables(5).