snmpwalk
(1)
Name
snmpwalk - retrieve a subtree of management values using
SNMP GETNEXT requests
Synopsis
snmpwalk [APPLICATION OPTIONS] [COMMON OPTIONS] [OID]
Description
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 informa-
tion.
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 vari-
ables 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 sub-
tree 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 increas-
ing. 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 automati-
cally 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
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Net-SNMP SNMPWALK(1)
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 initial-
ization, 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
ATTRIBUTES
See attributes(5) for descriptions of the following
attributes:
+---------------+-----------------------------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------------------------------------+
|Availability | system/management/snmp/net-snmp/documentation |
+---------------+-----------------------------------------------+
|Stability | Volatile |
+---------------+-----------------------------------------------+
SEE ALSO
snmpcmd(1), snmpbulkwalk(1), variables(5).
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Net-SNMP SNMPWALK(1)
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from
http://ftp.ntua.gr/mirror/net-snmp/OldFiles/net-
snmp-5.4.x/5.4.1/net-snmp-5.4.1.tar.gz
Further information about this software can be found on the
open source community website at http://www.net-snmp.org/.
V5.4.1 Last change: 08 Feb 2002 3