Avaya G430 Manual page 307

SNMP security levels
• NoAuthNoPriv: . This is the lowest level of SNMPv3 security. No MAC is provided with
the message, and no encryption is performed. This method maintains the same security
level as SNMPv1, but provides a method for limiting the access rights of the user.
• AuthNoPriv: . User authentication is performed based on MD5 or SHA algorithms. The
message is sent with an HMAC that is calculated with the user key. The data part is sent
unencrypted.
• AuthPriv: . User authentication is performed based on MD5 or SHA algorithms. The
message is sent in encrypted MAC that is calculated with the user key, and the data part
is sent with DES56 encryption using the user key.
snmp-server user command
Use the snmp-server user command to create a user or to change the parameters of an
existing user. This command includes the following parameters:
• A user name for the user
• The name of the SNMP group with which to associate the user
• The SNMP version functionality that the user is authorized to use. Possible values are:
v1 (SNMPv1), v2c (SNMPv2c), and v3 (SNMPv3).
• For an SNMPv3 user, which authentication protocol to use, if any. Possible values are:
md5 (HMAC MD5), and sha (HMAC SHA-1). If you specify an authentication protocol,
you must also configure an authentication password for the user. The authentication
password is transformed using the authentication protocol and the SNMP engine ID to
create an authentication key.
• For an SNMPv3 user, whether or not to use the DES privacy protocol, and the user's
privacy password if you enable DES privacy
Use the no form of the snmp-server user command to remove a user and its mapping to
a specified group. If you do not specify a group, the no form of the snmp-server user
command removes the user from all groups.
Groups
In SNMPv3, each user is mapped to a group. The group maps its users to defined views. These
views define sets of access rights, including read, write, and trap or inform notifications the
users can receive.
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SNMP
October 2013 307