18 Jan 17 Using SNMPWALK and PortQry tools

SNMPWALK and PortQry tools in Windows

We all know that Linux offers some built in tools that are great for troubleshooting purposes, however Windows Operating Systems have limitations. Me being a Windows user primarily (fan of CLI and CLI based tools), I am always looking for different tools. In this post I want to mention two tools that I have been able to use successfully.

My recent use was trying to troubleshoot SNMP on two switches. I was able to use snmpwalk to test SNMP and then utilize PortQry to check the ports via CLI. Here is my method and results:

Non Working – snmpwalk
COMMAND SYNTAX: snmpwalk -r:”ip-address” -c:”community-name” -v:2

Non Working PortQry Test
COMMAND SYNTAX: pq -n “ip-address” -cn !community-name! -e 161 -p udp

So above I have SNMP testing to a Non Working Switch. snmpwalk fails right away and the PortQry shows that the port is filtered, should say “LISTENING” like in the next example.

Working – snmpwalk
COMMAND SYNTAX: snmpwalk -r:”ip-address” -c:”community-name” -v:2

Working PortQry Test
COMMAND SYNTAX: pq -n “ip-address” -cn !community-name! -e 161 -p udp