#226 SNMP Servers

Researching simple pure Python SNMP Server options

Notes

This is just a quick scan to see whether therre are any decent SMPN server implementations in python.

tldr: not really

Options

A quick search didn’t bring much joy. My short-list after a bit more research:

snmp-agent - experimental and minimal SNMP Server implementation.
pytest-snmpserver SNMP server as a pytest plugin
- I suspect based on snmp-server however the versions are not aligned, and the egg version does not contain an SNMP server that can be run stand-alone

Inspecting pytest-snmpserver

Get the source distribution from pytest-snmpserver

echo "pytest_snmpserver-0.1.9.tar.gz" >> .gitignore
wget https://files.pythonhosted.org/packages/2c/62/da8d213b6f2fc3ef8ab65c0f1df51e21d82a5fbe8c114ff8bf15a3d9eac8/pytest_snmpserver-0.1.9.tar.gz
tar zxvf pytest_snmpserver-0.1.9.tar.gz

Inspecting pytest_snmpserver-0.1.9/pytest_snmpserver/snmp_server.py and unfortunately it is hard-coded to run on a specific port and expect a specific request, so not suitable for stand-alone use.

Using snmp-server

The snmp-server project on GitHub has a simple pure-python SNMP server.

I believe that the pytest-snmpserver egg is based on this project, however the versions are not aligned, and the egg version does not contain an SNMP server that can be run stand-alone

However rhe snmp-server does run stand-alone…

Installing Requirements

This is not distributed as an egg, so installing and running from source.

Just need to clone the repo:

$ echo "snmp-server" >> .gitignore
$ python --version
Python 3.7.3
$ git clone git@github.com:delimitry/snmp-server.git

Running the SNMP Server

$ cd snmp-server
$ python snmp-server.py -p 7161
snmp-server.py:18: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working
  from collections import Iterable
SNMP server listening on 0.0.0.0:7161

Testing with snmp cli

$ snmpget -v 2c -c public 0.0.0.0:7161 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”

$ snmpwalk -v 2c -c public 0.0.0.0:7161 1.2.3.4.5.6.7.8.9.10.12 iso.2.3.4.5.6.7.8.9.10.12 = STRING: “1.2.3.4.5.6.7.8.9.10.12”

Credits and References

snmp-server - github
pytest-snmpserver - pypi

Project Notes