[root@monitoring ~]# snmpwalk -c public -v1 10.0.33.228
End of MIB
I was trying to do snmwalk walk for a Cisco Router in GNS3, and was getting only End of MIB after a snmpwalk command.
It turned out that in my Cisco Router configurations I had allowed my SNMP host with ip address with community string "public" but I had not configured the community string separatly with the command
#snmp-server community public
This was my configuration mistake but took some time to figure it out