Operation Manual

AT-RG213 Residential VoIP Gateway - SIP Software Reference Manual
SIP Software Release 6-0-0
J613-M0524-00
58
Communities and Views
A community is a relationship between an NMS and an agent. The
community name is used like a password for a trivial authentication scheme.
An SNMP MIB view is a arbitrary subset of objects in the MIB. Objects in the
view may be from any part of the object name space, and not necessarily the
same sub-tree.
An SNMP community profile is the pairing of an SNMP access mode (read-
only or read-write) with the access mode defined by the MIB for each object
in the view. A pairing of an SNMP community and an SNMP community
profile determines the level of access that the agent affords to an NMS that is
a member of the specified community. When an agent receives an SNMP
message it checks the community name encoded in the message. If the agent
knows the community name, the message is deemed to be an authentic
SNMP message and the sending SNMP entity is accepted as a member of the
community.
The community profile associated with the community name then
determines the sender’s view of the MIB and the operations that can be
performed on objects in the view.
Configuration Examples
The following example illustrates the steps required to configure the SNMP
agent.
In this example, the management station “NMS” (IP address 192.168.10.5)
will be used to both monitor and manage devices on the network using
SNMP set messages.
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The IP module must be enabled and correctly configured in order to allow the remote
access to the SNMP agent, since the IP module handles the UDP datagrams used to
transport SNMP messages.
Example 1: configure SNMP
Step 1: Enable the SNMP agent:
ENABLE SNMP
Step 2: Create a community with write access for the central NMS.
To create a community called “private”, with write access for use only by the
central network management station at 192.168.0.11:
SET SNMP COMMUNITY SET=private
SET SNMP MANAGER=192.168.0.11