Simple SNMP server in pure Python
usage: snmp-server.py [-h] [-p PORT] [-c CONFIG] [-d] [-v] SNMP server optional arguments: -h, --help show this help message and exit -p PORT, --port PORT port (by default 161 - requires root privileges) -c CONFIG, --config CONFIG OIDs config file -d, --debug run in debug mode -v, --version show program's version number and exit
Examples:
# ./snmp-server.py -p 12345 SNMP server listening on 0.0.0.0:12345 # ./snmp-server.py SNMP server listening on 0.0.0.0:161
Without config file SNMP server works as a simple SNMP echo server:
# snmpget -v 2c -c public 0.0.0.0:161 1.2.3.4.5.6.7.8.9.10.11 iso.2.3.4.5.6.7.8.9.10.11 = STRING: "1.2.3.4.5.6.7.8.9.10.11"
It is possible to create a config file with values for specific OIDs.
Config file - is a Python script and must have DATA dictionary with string OID keys and values.
Values can be either ASN.1 types (e.g. integer(...)
, octet_string(...)
, etc) or any Python lambda/functions (with single argument - OID string), returning ASN.1 type.
DATA = { '1.3.6.1.4.1.1.1.0': integer(12345), '1.3.6.1.4.1.1.2.0': bit_string('\x12\x34\x56\x78'), '1.3.6.1.4.1.1.3.0': octet_string('test'), '1.3.6.1.4.1.1.4.0': null(), '1.3.6.1.4.1.1.5.0': object_identifier('1.3.6.7.8.9'), # notice the wildcards: '1.3.6.1.4.1.1.6.*': lambda oid: octet_string('* {}'.format(oid)), '1.3.6.1.4.1.1.?.0': lambda oid: octet_string('? {}'.format(oid)), '1.3.6.1.4.1.2.1.0': real(1.2345), '1.3.6.1.4.1.3.1.0': double(12345.2345), }
# ./snmp-server.py -c config.py SNMP server listening on 0.0.0.0:161
With config file snmpwalk
command as well as snmpget
can be used:
# snmpwalk -v 2c -c public 0.0.0.0:161 .1.3.6.1.4.1 iso.3.6.1.4.1.1.1.0 = INTEGER: 12345 iso.3.6.1.4.1.1.2.0 = BITS: 12 34 56 78 3 6 10 11 13 17 19 21 22 25 26 27 28 iso.3.6.1.4.1.1.3.0 = STRING: "test" iso.3.6.1.4.1.1.4.0 = NULL iso.3.6.1.4.1.1.5.0 = OID: iso.3.6.7.8.9 iso.3.6.1.4.1.1.6.4294967295 = STRING: "* 1.3.6.1.4.1.1.6.4294967295" iso.3.6.1.4.1.1.9.0 = STRING: "? 1.3.6.1.4.1.1.9.0" iso.3.6.1.4.1.2.1.0 = Opaque: Float: 1.234500 iso.3.6.1.4.1.3.1.0 = Opaque: Float: 12345.234500 iso.3.6.1.4.1.4.1.0 = No more variables left in this MIB View (It is past the end of the MIB tree)
Also snmpset
command can be used:
# snmpset -v2c -c public 0.0.0.0:161 .1.3.6.1.4.1.1.3.0 s "new value" iso.3.6.1.4.1.1.3.0 = STRING: "new value" # # snmpget -v2c -c public 0.0.0.0:161 .1.3.6.1.4.1.1.3.0 iso.3.6.1.4.1.1.3.0 = STRING: "new value"
Released under The MIT License.