-c option, specify the version of SNMP with the
-v option and then specify the IP address or
fully qualified domain name (FQDN). You will get
a "Variable:" prompt when you run the command. You can specify an
object identifider (OID) that you wish to query at that prompt. If
you hit Enter the prompt will be repeated. When you've finished
entering variables you wish to query, hit Enter at the next
"Variable" prompt without entering any variable. You should then see
the results returned as shown below. You can hit Ctrl-C to terminate
the program.# snmptest -c SomeSecret0123 -v 1 192.168.0.11 Variable: system.sysLocation.0 Variable: system.sysContact.0 Variable: Received Get Response from UDP: [192.168.0.11]:161->[0.0.0.0]:41231 requestid 0xAF07FC2 errstat 0x0 errindex 0x0 SNMPv2-MIB::sysLocation.0 = STRING: London SNMPv2-MIB::sysContact.0 = STRING: John Doe Variable: ^C #
If you type snmptest -h, you will see usage information for
the command.
# snmptest -h
USAGE: snmptest [OPTIONS] AGENT
Version: 5.7.2
Web: http://www.net-snmp.org/
Email: net-snmp-coders@lists.sourceforge.net
OPTIONS:
-h, --help display this help message
-H display configuration file directives understood
-v 1|2c|3 specifies SNMP version to use
-V, --version display package version number
SNMP Version 1 or 2c specific
-c COMMUNITY set the community string
SNMP Version 3 specific
-a PROTOCOL set authentication protocol (MD5|SHA)
-A PASSPHRASE set authentication protocol pass phrase
-e ENGINE-ID set security engine ID (e.g. 800000020109840301)
-E ENGINE-ID set context engine ID (e.g. 800000020109840301)
-l LEVEL set security level (noAuthNoPriv|authNoPriv|authPriv)
-n CONTEXT set context name (e.g. bridge1)
-u USER-NAME set security name (e.g. bert)
-x PROTOCOL set privacy protocol (DES|AES)
-X PASSPHRASE set privacy protocol pass phrase
-Z BOOTS,TIME set destination engine boots/time
General communication options
-r RETRIES set the number of retries
-t TIMEOUT set the request timeout (in seconds)
Debugging
-d dump input/output packets in hexadecimal
-D[TOKEN[,...]] turn on debugging output for the specified TOKENs
(ALL gives extremely verbose debugging output)
General options
-m MIB[:...] load given list of MIBs (ALL loads everything)
-M DIR[:...] look in given list of directories for MIBs
(default: $HOME/.snmp/mibs:/usr/share/snmp/mibs)
-P MIBOPTS Toggle various defaults controlling MIB parsing:
u: allow the use of underlines in MIB symbols
c: disallow the use of "--" to terminate comments
d: save the DESCRIPTIONs of the MIB objects
e: disable errors when MIB symbols conflict
w: enable warnings when MIB symbols conflict
W: enable detailed warnings when MIB symbols conflict
R: replace MIB symbols from latest module
-O OUTOPTS Toggle various defaults controlling output display:
0: print leading 0 for single-digit hex characters
a: print all strings in ascii format
b: do not break OID indexes down
e: print enums numerically
E: escape quotes in string indices
f: print full OIDs on output
n: print OIDs numerically
q: quick print for easier parsing
Q: quick print with equal-signs
s: print only last symbolic element of OID
S: print MIB module-id plus last element
t: print timeticks unparsed as numeric integers
T: print human-readable text along with hex strings
u: print OIDs using UCD-style prefix suppression
U: don't print units
v: print values only (not OID = value)
x: print all strings in hex format
X: extended index format
-I INOPTS Toggle various defaults controlling input parsing:
b: do best/regex matching to find a MIB node
h: don't apply DISPLAY-HINTs
r: do not check values for range/type legality
R: do random access to OID labels
u: top-level OIDs must have '.' prefix (UCD-style)
s SUFFIX: Append all textual OIDs with SUFFIX before parsing
S PREFIX: Prepend all textual OIDs with PREFIX before parsing
-L LOGOPTS Toggle various defaults controlling logging:
e: log to standard error
o: log to standard output
n: don't log at all
f file: log to the specified file
s facility: log to syslog (via the specified facility)
(variants)
[EON] pri: log to standard error, output or /dev/null for level 'pri' and above
[EON] p1-p2: log to standard error, output or /dev/null for levels 'p1' to 'p2'
[FS] pri token: log to file/syslog for level 'pri' and above
[FS] p1-p2 token: log to file/syslog for levels 'p1' to 'p2'
$Some other variables you might wish to query include system.sysDescr.0
for the system's description, which might include a model and serial
number, system.sysUptime.0 for the system's uptime, i.e., the
amount of time that has elapsed since the device was last powered on or
rebooted.
Variable: system.sysUpTime.0 Variable: Received Get Response from UDP: [192.168.0.11]:161->[0.0.0.0]:42109 requestid 0x5C2E5DC3 errstat 0x0 errindex 0x0 DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (4216892561) 488 days, 1:35:25.61