Hello! I am sorry if this has already been discussed, but I just can't get SNMP extend to work on my RT-AC68U (384.7_2). I have created a snmpd.postconf script in /jffs/scripts to append the following line to the snmpd.conf: "extend test /bin/echo hello", but when I use snmpwalk to check, it does not seem to work. How can I get snmp extend working? Thanks!