SNMPWALK(1)                                                          Net-SNMP                                                          SNMPWALK(1)

NAME

       snmpwalk - retrieve a subtree of management values using SNMP GETNEXT requests

SYNOPSIS

       snmpwalk [APPLICATION OPTIONS] [COMMON OPTIONS] [OID]

DESCRIPTION

       snmpwalk is an SNMP application that uses SNMP GETNEXT requests to query a network entity for a tree of information.

       An  object  identifier  (OID)  may  be  given on the command line.  This OID specifies which portion of the object identifier space will be
       searched using GETNEXT requests.  All variables in the subtree below the given OID are queried and their  values  presented  to  the  user.
       Each variable name is given in the format specified in variables(5).

       If no OID argument is present, snmpwalk will search the subtree rooted at SNMPv2-SMI::mib-2 (including any MIB object values from other MIB
       modules, that are defined as lying within this subtree).  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 why the request was malformed.

       If the tree search causes attempts to search beyond the end of the MIB, the message "End of MIB" will be displayed.

OPTIONS

       -Cc     Do  not  check  whether the returned OIDs are increasing.  Some agents (LaserJets are an example) return OIDs out of order, but can
               complete the walk anyway.  Other agents return OIDs that are out of order and can cause snmpwalk to loop indefinitely.  By default,
               snmpwalk tries to detect this behavior and warns you when it hits an agent acting illegally.  Use -Cc to turn off this check.

       -Ci     Include the given OID in the search range.  Normally snmpwalk uses GETNEXT requests starting with the OID you specified and returns
               all results in the MIB subtree rooted at that OID.  Sometimes, you may wish to include the OID specified on the command line in the
               printed results if it is a valid OID in the tree itself.  This option lets you do this explicitly.

       -CI     In fact, the given OID will be retrieved automatically if the main subtree walk returns no useable values.  This allows a walk of a
               single instance to behave as generally expected, and return the specified instance value.  This option turns  off  this  final  GET
               request, so a walk of a single instance will return nothing.

       -Cp     Upon completion of the walk, print the number of variables found.

       -Ct     Upon  completion  of  the  walk,  print the total wall-clock time it took to collect the data (in seconds).  Note that the timer is
               started just before the beginning of the data request series and stopped just after it finishes.  Most importantly, this means that
               it does not include snmp library initialization, shutdown, argument processing, and any other overhead.

       In addition to these options, snmpwalk takes the common options described in the snmpcmd(1) manual page.

EXAMPLE

       The command:

       snmpwalk -Os -c public -v 1 zeus system

       will retrieve all of the variables under system:

       sysDescr.0 = STRING: "SunOS zeus.net.cmu.edu 4.1.3_U1 1 sun4m"
       sysObjectID.0 = OID: enterprises.hp.nm.hpsystem.10.1.1
       sysUpTime.0 = Timeticks: (155274552) 17 days, 23:19:05
       sysContact.0 = STRING: ""
       sysName.0 = STRING: "zeus.net.cmu.edu"
       sysLocation.0 = STRING: ""
       sysServices.0 = INTEGER: 72

SEE ALSO

       snmpcmd(1), snmpbulkwalk(1), variables(5).

4th Berkeley Distribution                                           08 Feb 2002                                                        SNMPWALK(1)