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Customizing SNMP

308644-15.1 Rev 00

3-19

Configuring SNMP View-Based Access Control

The SNMP view-based access control feature allows you to modify what can or

cannot be seen of a router’s MIB tree. You can include or exclude from a view any

MIB object, attribute, or instance in the router’s MIB. You can also include or

exclude access to a MIB subtree for traps, and to the SNMP operations

get

get-next

, and

set

When you configure a view, you specify view subtrees -- that is, instructions for

what MIB information the agent will allow to be seen and not seen by managers in

the specified community.

This feature also lets you manage overlapping private address spaces. For

example, if two routers use the same IP address, you can create a view that

excludes the MIB of one address. Then, when the management station queries the

MIB for information, it receives information only from the router whose view you

did not exclude.

You can configure SNMP view-based access control using the BCC or the

Technician Interface.

Configuring, Listing, and Deleting a View

To configure, list, or delete a view and its contents, use the

snmpserver view

command. You can enter this command at the BCC or Technician Interface

prompt.

Configuring a View

When you configure a view, you control access to a MIB subtree. To configure a

view, enter the following command:

Note:

Because of the way that SNMP works, the SNMP

get-next

function

does not allow you to exclude an attribute and include subsequent attributes.

When you exclude an attribute, all subsequent attributes are also excluded. For

example, if you have six attributes, and you exclude the second attribute, you

are really excluding attributes 2 through 6; you will not be able to view

attributes 2 through 6.

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Avaya Configuring BOOTP Services Manuel d'utilisateur Page 79