Comment 4 for bug 1322431

there are several workarounds:

1) use debian (this is where bugs get fixed)
2) make some noise here, so that launchpad (canonical) can hear you
3) create the config by hand: net-snmp-create-v3-user is just a simple shell script, that was forgotten to be packaged: the content translates to:

stop snmpd

adding the following line to /var/lib/snmp/snmpd.conf:
   createUser $user $Aalgorithm "$apassphrase" $Xalgorithm $xpassphrase

adding the following line to /usr/share/snmp/snmpd.conf:
   $token $user

with:
Aalgorithm=MD5|SHA
Xalgorithm=DES|AES|AES128
token=rouser|rwuser

start snmpd