PROBLEM:
when I tried to load one of the SPG8000A mib to ubuntu SNMP, the net-snmp library just will not parse the mib file to the OID.
as I troubleshoot I found out
root@user-x8sti:~# service snmptrapd restart
root@user-x8sti:~# service snmptrapd status
● snmptrapd.service - Simple Network Management Protocol (SNMP) Trap Daemon.
Loaded: loaded (/lib/systemd/system/snmptrapd.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2022-03-25 21:15:43 +08; 3s ago
Main PID: 2441 (snmptrapd)
Tasks: 1 (limit: 14222)
Memory: 15.0M
CGroup: /system.slice/snmptrapd.service
└─2441 /usr/sbin/snmptrapd -LOw -f -p /run/snmptrapd.pid
Mar 25 21:15:43 user-x8sti systemd[1]: Started Simple Network Management Protocol (SNMP) Trap Daemon..
Mar 25 21:15:43 user-x8sti snmptrapd[2441]: Bad operator (INTEGER): At line 73 in /usr/share/snmp/mibs/ietf/SNMPv2-PDU
Mar 25 21:15:43 user-x8sti snmptrapd[2441]: unknown snmp version 193
Solution:
To fix the error: copy or make a new SNMPv2PDU file in the
/usr/share/mibs/ietf/ directory with the below MIB information
or you can run this command in the linux commandline.
wget http://pastebin.com/raw.php?i=p3QyuXzZ -O /usr/share/mibs/ietf/SNMPv2-PDU
Remember to run service snmptrapd restart
this should fix the OID to mib information.
More troubleshooting at this link:
https://docs.linuxconsulting.mn.it/notes/net-snmp-errors
SNMPv2-PDU DEFINITIONS ::= BEGIN
ObjectName ::= OBJECT IDENTIFIER
ObjectSyntax ::= CHOICE {
simple SimpleSyntax,
application-wide ApplicationSyntax }
SimpleSyntax ::= CHOICE {
integer-value INTEGER (-2147483648..2147483647),
string-value OCTET STRING (SIZE (0..65535)),
objectID-value OBJECT IDENTIFIER }
ApplicationSyntax ::= CHOICE {
ipAddress-value IpAddress,
counter-value Counter32,
timeticks-value TimeTicks,
arbitrary-value Opaque,
big-counter-value Counter64,
unsigned-integer-value Unsigned32 }
IpAddress ::= [APPLICATION 0] IMPLICIT OCTET STRING (SIZE (4))
Counter32 ::= [APPLICATION 1] IMPLICIT INTEGER (0..4294967295)
Unsigned32 ::= [APPLICATION 2] IMPLICIT INTEGER (0..4294967295)
Gauge32 ::= Unsigned32
TimeTicks ::= [APPLICATION 3] IMPLICIT INTEGER (0..4294967295)
Opaque ::= [APPLICATION 4] IMPLICIT OCTET STRING
Counter64 ::= [APPLICATION 6]
IMPLICIT INTEGER (0..18446744073709551615)
-- protocol data units
PDUs ::= CHOICE {
get-request GetRequest-PDU,
get-next-request GetNextRequest-PDU,
get-bulk-request GetBulkRequest-PDU,
response Response-PDU,
set-request SetRequest-PDU,
inform-request InformRequest-PDU,
snmpV2-trap SNMPv2-Trap-PDU,
report Report-PDU }
-- PDUs
GetRequest-PDU ::= [0] IMPLICIT PDU
GetNextRequest-PDU ::= [1] IMPLICIT PDU
Response-PDU ::= [2] IMPLICIT PDU
SetRequest-PDU ::= [3] IMPLICIT PDU
-- [4] is obsolete
GetBulkRequest-PDU ::= [5] IMPLICIT BulkPDU
InformRequest-PDU ::= [6] IMPLICIT PDU
SNMPv2-Trap-PDU ::= [7] IMPLICIT PDU
-- Usage and precise semantics of Report-PDU are not defined
-- in this document. Any SNMP administrative framework making
-- use of this PDU must define its usage and semantics.
Report-PDU ::= [8] IMPLICIT PDU
-- max-bindings INTEGER ::= 2147483647
PDU ::= SEQUENCE {
request-id INTEGER (-214783648..214783647),
error-status -- sometimes ignored
INTEGER {
noError(0),
tooBig(1),
noSuchName(2), -- for proxy compatibility
badValue(3), -- for proxy compatibility
readOnly(4), -- for proxy compatibility
genErr(5),
noAccess(6),
wrongType(7),
wrongLength(8),
wrongEncoding(9),
wrongValue(10),
noCreation(11),
inconsistentValue(12),
resourceUnavailable(13),
commitFailed(14),
undoFailed(15),
authorizationError(16),
notWritable(17),
inconsistentName(18)
},
error-index -- sometimes ignored
INTEGER (0..2147483647),
variable-bindings -- values are sometimes ignored
VarBindList
}
BulkPDU ::= -- must be identical in
SEQUENCE { -- structure to PDU
request-id INTEGER (-214783648..214783647),
non-repeaters INTEGER (0..2147483647),
max-repetitions INTEGER (0..2147483647),
variable-bindings -- values are ignored
-- VarBindList
SEQUENCE (SIZE (0..2147483647)) OF VarBind
}
-- variable binding
VarBind ::= SEQUENCE {
name ObjectName,
CHOICE {
value ObjectSyntax,
unSpecified NULL, -- in retrieval requests
-- exceptions in responses
noSuchObject [0] IMPLICIT NULL,
noSuchInstance [1] IMPLICIT NULL,
endOfMibView [2] IMPLICIT NULL
}
}
-- variable-binding list
-- VarBindList ::= SEQUENCE (SIZE (0..2147483647)) OF VarBind
END
