Net-SNMP SNMPWALK(1)
NAME
snmpwalk - retrieve a subtree of management values using
SNMP GETNEXT requestsSYNOPSIS
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 identifierspace 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 andcan 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 V5.4.1 Last change: 08 Feb 2002 1Net-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, thismeans 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: 72SEE ALSO
snmpcmd(1), snmpbulkwalk(1), variables(5).ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes: V5.4.1 Last change: 08 Feb 2002 2Net-SNMP SNMPWALK(1)
_______________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|____________________|__________________________________|_
| Availability | system/management/snmp/net-snmp|
|____________________|__________________________________|_
| Interface Stability| Volatile ||____________________|_________________________________|
NOTESSource for net-snmp is available on http://opensolaris.org.
V5.4.1 Last change: 08 Feb 2002 3