Alcatel-Lucent 7705 SAR, System Management Manual

Page: 166 / 356

Which SNMP Version to Use?
166 7705 SAR OS System Management Guide
Which SNMP Version to Use?
SNMPv1 and SNMPv2c do not provide security, authentication, or encryption. Without
authentication, an unauthorized user could perform SNMP network management functions
and eavesdrop on management information as it passes from system to system. Many
SNMPv1 and SNMPv2c implementations are restricted read-only access, which, in turn,
reduces the effectiveness of a network monitor in which network control applications cannot
be supported.
To implement SNMPv3, an authentication and encryption method must be assigned to a user
in order to be validated by the 7705 SAR. SNMP authentication allows the router to validate
the managing node that issued the SNMP message and determine if the message was
tampered with.