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Producer: The Server which you want to Monitor running net-snmp
Proxy: Accessible to Both to EM7 and to the Producer
I want to monitor my Personal System from EM7. I have setup Firewall to access my system. In that Only port 22 is open. You cannot access SNMP running on my personal system directly. So I have setup one Proxy Machine i.e. xyz which is accessible to EM7 and you can access my machine from xyz also.
Proxy Machine: xyz 192.168.0.1
On Proxy Machine:
ssh -f -N email@example.com -L 6004:localhost:6004
Start TCP to UDP socat on Producer:
socat -d -d -d -lffoo.log TCP4-LISTEN:6004,fork UDP4:localhost:161
Start UDP to TCP socat on Proxy:
socat -d -d -d -lffoo.log UDP4-LISTEN:161,fork TCP:localhost:6004
Test by running snmpwalk on Proxy Machine:
snmpwalk -v1 -c public localhost