1. What are the differences between SNMPv2
agent and SNMPv3 agent? What additional features does SNMPv3
The major difference between SNMPv2 agent and SNMPv3 agent
is based on the level of security provided by each type of
SNMPv2 agent provides community-based security level to the
users whereas SNMPv3 agent is an advanced version of SNMPv2
agent that provides additional administrative structure, authentication,
and privacy through USM and VACM. For more details on advanced
security level of SNMPv3 agent, refer to "Configuring
SNMPv3 Agents" from the help documentation.
Yes. SNMPv3 provides a secured environment during data transmission
in the network. There can be possibilities where SNMP
messages are easily intercepted and decoded by unauthorized
personnel. To avoid this, SNMPv3 agent provides secured communication
of data in the network.
4.What should I do to add a new user to
view the management information of the SNMPv3 agent?
Any number of users can be added to view the information
of SNMPv3 agents through USM table, which is a default security
model provided by SNMPv3. The user entries can be entered
to the USM table either before agent startup or during runtime.
More Users for v3 Agents (USM)" of our help documenation
for further details. To add new users to the USM table at
runtime, refer "SNMP
V3 Administration Tool" of our help documentation.
7. Is there any tool available for manipulating USM and VACM
tables of SNMP v3 agent during runtime?
The contents of USM and VACM related tables can be viewed
and manipulated using SNMP v3 Administration Tool during the
agent runtime. For more information regarding the usage of
this tool, refer the "SNMPv3
Admin Tool" page in our help documentation.