My current snmp config, its for test :
configure snmpv3 add community "public" name "public" user "v1v2c_ro"
when I try to interrogate a switch by specifying incorrect credentials, for example "snmpwalk -v 2c -c pub 192.168.0.1", I get an error in the logs: a bad community name, and when I specify "snmpwalk -v 2c -c xBE6LMpR 192.168.0.1", then there is nothing in the logs and in the linux console the following : MIB View (It is past the end of the MIB tree). Very strange