librenms-librenms/doc/Extensions/SNMP-Proxy.md

source: Extensions/SNMP-Proxy.md
# SNMP Proxy

If you have machines that you want to monitor but are not reachable directly, you can use [SNMPD Proxy](http://www.net-snmp.org/wiki/index.php/Snmpd_proxy). This will use the reachable SNMPD to proxy requests to the unreachable SNMPD.

## Example configuration
We want to poll ```unreachable.example.com``` via ```hereweare.example.com```. Use the following config:

On ```hereweare.example.com```:
```
        view all included .1
        com2sec -Cn ctx_unreachable readonly <poller-ip> unreachable
        access MyROGroup ctx_unreachable any noauth prefix all none none
        proxy -Cn ctx_unreachable -v 2c -c private unreachable.example.com  .1.3
```

On ```unreachable.example.com```:
```
        view all included .1                               80
        com2sec readonly <hereweare.example.com ip address> private
        group MyROGroup v1 readonly
        group MyROGroup v2c readonly
        group MyROGroup usm readonly
        access MyROGroup "" any noauth exact all none none
```


You can now poll community ```private``` on ```unreachable.example.com``` via community ```unreachable``` on host ```hereweare.example.com```. Please note that requests on ```unreachable.example.com``` will be coming from ```hereweare.example.com```, not your poller.
Updated docs to have source to use for edit github (#4185) * Added source link for edit on github * Updated formatting issues * Updated formatting issues * Updated formatting issues 2016-08-24 08:12:20 +01:00			`source: Extensions/SNMP-Proxy.md`
Add example configuration for SNMP Proxy 2016-05-17 15:26:59 +02:00			`# SNMP Proxy`

			`If you have machines that you want to monitor but are not reachable directly, you can use [SNMPD Proxy](http://www.net-snmp.org/wiki/index.php/Snmpd_proxy). This will use the reachable SNMPD to proxy requests to the unreachable SNMPD.`

			`## Example configuration`
			We want to poll ```unreachable.example.com``` via ```hereweare.example.com```. Use the following config:

			On ```hereweare.example.com```:
			```
			`view all included .1`
			`com2sec -Cn ctx_unreachable readonly <poller-ip> unreachable`
			`access MyROGroup ctx_unreachable any noauth prefix all none none`
			`proxy -Cn ctx_unreachable -v 2c -c private unreachable.example.com .1.3`
			```

			On ```unreachable.example.com```:
			```
			`view all included .1 80`
			`com2sec readonly <hereweare.example.com ip address> private`
			`group MyROGroup v1 readonly`
			`group MyROGroup v2c readonly`
			`group MyROGroup usm readonly`
			`access MyROGroup "" any noauth exact all none none`
			```


			You can now poll community ```private``` on ```unreachable.example.com``` via community ```unreachable``` on host ```hereweare.example.com```. Please note that requests on ```unreachable.example.com``` will be coming from ```hereweare.example.com```, not your poller.