How to use SNMPWALK? First of all you have to get Snmpwalk from here. It's better to download the latest stable version.
Once you have downloaded the tool and extracted it from the archive. If you are on a Windows OS it's enough to extract it from the .zip archive. Once you have the snmpwalk.exe file on your computer open the CMD (Start, search cmd and hit Enter). The "black window" will popup. Locate the snmpwalk.exe file and drag it to that black window. Now you have to enter the right command.
Snmpwalk is a great tool that will help you to test SNMP connectivity to one or more devices. It will check if your computer can connect via SNMP. If some ACL or firewall is blocking the snmp access the snmpwalk will fail. The same will happen if the SNMP community string (aka password) is wrong.
We have this scenario. You want to check the connectivity to a Cisco router that has IP address 192.168.1.1 - This router is configured with SNMP V2c, and its community string is public
In order to test the connectivity and in order to check if the community string is right you can run the following command:
Here is the meaning of the parameters that we use in our examples:
This is the format of the command that we use in our examples:
The timeout message Timeout: No Response from 192.168.1.1 can appear if:
In this example we can see that snmpwalk went through. It means that:
If you have questions or comments feel free to contact me or leave a comment below