Turn on SNMP in Asuswrt-Merlin

Asus routers like the RT-N66U have support for SNMP in the latest firmware. Here is how to enable and test it (here using the awesome Asuswrt-merlin alternative firmware ).

Go To Administration and click on SNMP. Enable SNMP, enter a system name, system location, SNMP Get Community (just any text, this acts like a password). Click on Apply to activate the changes.


To test if SNMP is working you can use the snmpwalk command. If your router IP address is and your SNMP Get Community string is ‘public’, run

snmpwalk -Os -c public -v2c iso.

The output should look like “iso. = STRING: “Linux RT-N66U #1 Thu Nov 20 13:57:15 EST 2014 mips” if SNMP is working. If it is not working you will receive a message like “Timeout: No Response from”.

To get more data from SNMP run ‘snmpwalk -Os -c public -v2c’


One Reply to “Turn on SNMP in Asuswrt-Merlin”

  1. I have been able to access version 378.55 via SNMPv3. After defining the authentication and privacy passwords the SNMPv3 username is ‘admin’. This doesn’t seem to be documented anywhere.

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