SNMPTEST(1)			   Net-SNMP			   SNMPTEST(1)



NAME
       snmptest - communicates with a network entity using SNMP requests

SYNOPSIS
       snmptest [COMMON OPTIONS] AGENT

DESCRIPTION
       snmptest	 is  a	flexible  SNMP application that can monitor and manage
       information on a network entity.

       After invoking the program, a  command  line  interpreter  proceeds  to
       accept  commands.   This	 intepreter enables the user to send different
       types of SNMP requests to target agents.

       AGENT identifies a target SNMP agent, which is instrumented to  monitor
       the  gievn objects.  At its simplest, the AGENT specification will con-
       sist of a hostname or an IPv4 address.  In this situation, the  command
       will  attempt  communication with the agent, using UDP/IPv4 to port 161
       of the given target host. See snmpcmd(1) for a full list of the	possi-
       ble formats for AGENT.

       Once snmptest is invoked, the command line intepreter will prompt with:

       Variable:

       At  this	 point you can enter one or more variable names, one per line.
       A blank line ends the parameter input and will send the request	(vari-
       ables entered) in a single packet, to the remote entity.	 Each variable
       name is given in the format specified in variables(5).  For example:

       snmptest -c public -v 1 zeus
       Variable: system.sysDescr.0
       Variable:

       will return some information about the request and  reply  packets,  as
       well as the information:

       requestid 0x5992478A errstat 0x0 errindex 0x0
       system.sysDescr.0 = STRING: "Unix 4.3BSD"

       The errstatus value shows the error status code for the call.  The pos-
       sible values for errstat are in the header file snmp.h.	 The  errindex
       value  identifies  the variable that has the given error.  Index values
       are assigned to all the variables entered at  the  "Variable":  prompt.
       The first value is assigned an index of 1.

       Upon  startup,  the  program  defaults to sending a GET request packet.
       The type of request can be changed by typing one of the following  com-
       mands at the "Variable:" prompt:

       $G - send a GET request
       $N - send a GETNEXT request
       $S - send a SET request
       $B - send a GETBULK request
	    Note: GETBULK is not available in SNMPv1
       $I - send an Inform request
       $T - send an SNMPv2 Trap request

       Other values that can be entered at the "Variable:" prompt are:

       $D - toggle the dumping of each sent and received packet
       $QP - toggle a quicker, less verbose output form
       $Q - Quit the program

       Request Types:

       GET Request:

       When  in	 "GET request" mode ($G or default), the user can enter an OID
       at the "Variable:" prompt. The user can enter multiple  OIDs,  one  per
       prompt. The user enters a blank line to send the GET request.

       GETNEXT Request:

       The  "GETNEXT  request"	mode ($N) is simlar to the "Get request" mode,
       described above.

       SET Request:

       When in the "SET request" mode ($S), more information is	 requested  by
       the prompt for each variable.  The prompt:

       Type [i|s|x|d|n|o|t|a]:
       requests the type of the variable be entered.  Depending on the type of
       value you want to set, you can type one of the following:

       i - integer
       u - unsigned integer
       s - octet string in ASCII
       x - octet string in hex bytes, separated by whitespace
       d - octet string as decimal bytes, separated by whitespace
       a - ip address in dotted IP notation
       o - object identifier
       n - null
       t - timeticks
       At this point a value will be prompted for:

       Value:

       If this is an integer value, just type the integer (in decimal).	 If it
       is a decimal string, type in white-space separated decimal numbers, one
       per byte of the string.	Again type a blank line at the prompt for  the
       variable name to send the packet.

       GETBULK Request:

       The  "GETBULK  request" mode ($B) is similar to the "Set request" mode.
       GETBULK, however, is not available in SNMPv1.

       Inform Request:

       The "Inform request" mode ($I) is similar to the	 "Set  request"	 mode.
       This  type  of  request, however, is not available in SNMPv1. Also, the
       _agent_ specified on the snmptest command should correspond to the tar-
       get snmptrapd agent.

       SNMPv2 Trap Request:

       The  "SNMPv2  Trap  Request"  mode ($T) is similar to the "Set request"
       mode.  This type of request, however, is not available in SNMPv1. Also,
       the  _agent_ specified on the snmptest command should correspond to the
       target snmptrapd agent.

OPTIONS
       snmptest takes the common options described in  the  snmpcmd(1)	manual
       page.

EXAMPLES
       The following is an example of sending a GET request for two OIDs:

       % snmptest -v 2c -c public testhost:9999

       Variable: system.sysDescr.0
       Variable: system.sysContact.0
       Variable:
       Received Get Response from 128.2.56.220
       requestid 0x7D9FCD63 errstat 0x0 errindex 0x0
       SNMPv2-MIB::sysDescr.0 = STRING: SunOS testhost 5.9 Generic_112233-02 sun4u
       SNMPv2-MIB::sysContact.0 = STRING: x1111

       The following is an example of sending a GETNEXT request:

       Variable: SNMPv2-MIB::sysORUpTime
       Variable:
       Received Get Response from 128.2.56.220
       requestid 0x7D9FCD64 errstat 0x0 errindex 0x0
       SNMPv2-MIB::sysORUpTime.1 = Timeticks: (6) 0:00:00.06
       Variable:

       The following is an example of sending a SET request:

       Variable: $S
       Request type is Set Request
       Variable: system.sysLocation.0
       Type [i|u|s|x|d|n|o|t|a]: s
       Value: building 17
       Variable:
       Received Get Response from 128.2.56.220
       requestid 0x7D9FCD65 errstat 0x0 errindex 0x0
       SNMPv2-MIB::sysLocation.0 = STRING: building A
       Variable:

       The following is an example of sending a GETBULK request:

       Variable: $B
       Request type is Bulk Request
       Enter a blank line to terminate the list of non-repeaters
       and to begin the repeating variables
       Variable:
       Now input the repeating variables
       Variable: system.sysContact.0
       Variable: system.sysLocation.0
       Variable:
       What repeat count? 2
       Received Get Response from 128.2.56.220
       requestid 0x2EA7942A errstat 0x0 errindex 0x0
       SNMPv2-MIB::sysName.0 = STRING: testhost
       SNMPv2-MIB::sysORLastChange.0 = Timeticks: (58) 0:00:00.58
       SNMPv2-MIB::sysLocation.0 = STRING: bldg A
       SNMPv2-MIB::sysORID.1 = OID: IF-MIB::ifMIB
       Variable:

       The following is an example of sending an Inform request:

       snmptest -v 2c -c public snmptrapd_host
       Variable: $I
       Request type is Inform Request
       (Are you sending to the right port?)
       Variable: system.sysContact.0
       Type [i|u|sIx|d|n|o|t|a]: s
       Value: x12345
       Variable:
       Inform Acknowledged
       Variable:

       The snmptrapd_host will show:

       snmptrapd_host  [<ip address>]: Trap SNMPv2-MIB::sysContact.0 = STRING:
       x12345

       The following is an example of sending an SNMPv2 Trap request:

       snmptest -v 2c -c public snmptrapd_host
       Variable: $T
       Request type is SNMPv2 Trap Request
       (Are you sending to the right port?)
       Variable: system.sysLocation.0
       Type [i|u|s|x|d|n|o|t|a]: s
       Value: building a
       Variable:

       The snmptrapd_host will show:

       snmptrapd_host [<ip address>]: Trap SNMPv2-MIB::sys.0 = STRING:
       building a

SEE ALSO
       snmpcmd(1), snmpget(1), snmpset(1), variables(5)



4th Berkeley Distribution	  25 Jul 2003			   SNMPTEST(1)