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SNMPWALK(1) Net-SNMP SNMPWALK(1)
snmpwalk - communicates with a network entity using SNMP GETNEXT requests.
snmpwalk [APPLICATION OPTIONS] [COMMON OPTIONS] [OID]
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 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 MIB-2. 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.
-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 indefi-
nitely. By default, snmpwalk tries to detect this behavior and warns you when it
hits an agent acting illegally. Use -Cc to turn off this behaviour.
-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
tree after 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.
-Cp Upon completion of the walk, print the number of variables found.
In addition to these options, snmpwalk takes the common options described in the snm-
pcmd(1) manual page.
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
snmpcmd(1), snmpbulkwalk(1), variables(5).
4th Berkeley Distribution 08 Feb 2002 SNMPWALK(1)
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