SNMP :snmpwalk response from NAS timeout issue

Question

I am new to Linux networking. I am trying to configure SNMP between a Linux pc <--> Switch <--> NAS(Buffalo TS500D). I have configured snmpd in linux pc and enabled SNMP in NAS. When I checked the query mesasage from linux pc using command

$snmpwalk -Os -c MSTTeraStation -v 2c 169.254.213.10

I got the response as follow

$iso.3.6.1.2.1.1.1.0 = STRING: "BUFFALO TeraStation TS5200D Ver.2.81 (2015/02/17 $12:00:35)"

$iso.3.6.1.2.1.1.2.0 = OID: ccitt.1

....
....

iso.3.6.1.2.1.25.3.2.1.1.1026 = INTEGER: 1026

iso.3.6.1.2.1.25.3.2.1.1.1027 = INTEGER: 1027

Timeout: No Response from 169.254.213.10
$

When I again checked the query message I am not getting response anymore for around 10-15 minutes after that getting response as above.

Answer 1

I suggest install protocol analyzer e.g. wireshark to see what is really going on at the SNMP protocol level

Answer 2

I agree with k1eran. This doesn't seem like an issue with your SNMP request, but rather something else. I would look at Wireshark (use the filter "SNMP" to see only SNMP traffic). First, check if there is a response. If the Buffalo NAS responses more than 1 second after the request is made, then the snmpwalk will have timed out and that will give you the error. If there isn't a response then the NAS either isn't responding to it or isn't receiving it.