Configuration manual

on vty0 (10.11.9.209)
%RPM0-P:CP %SEC-3-AUTHENTICATION_ENABLE_SUCCESS: Enable password
authentication success on vty0 ( 10.11.9.209 )
AAA Accounting
Accounting, authentication, and authorization (AAA) accounting is part of the AAA security model.
For details about commands related to AAA security, refer to the Security chapter in the Dell Networking
OS Command Reference Guide.
AAA accounting enables tracking of services that users are accessing and the amount of network
resources being consumed by those services. When you enable AAA accounting, the network server
reports user activity to the security server in the form of accounting records. Each accounting record
comprises accounting attribute/value (AV) pairs and is stored on the access control server.
As with authentication and authorization, you must configure AAA accounting by defining a named list of
accounting methods and then applying that list to various virtual terminal line (VTY) lines.
Enabling AAA Accounting
The aaa accounting command allows you to create a record for any or all of the accounting functions
monitored.
To enable AAA accounting, use the following command.
• Enable AAA accounting and create a record for monitoring the accounting function.
CONFIGURATION mode
aaa accounting {system | exec | command level} {default | name} {start-stop |
wait-start | stop-only} {tacacs+}
The variables are:
– system: sends accounting information of any other AAA configuration.
– exec: sends accounting information when a user has logged in to EXEC mode.
– command level: sends accounting of commands executed at the specified privilege level.
– default | name: enter the name of a list of accounting methods.
– start-stop: use for more accounting information, to send a start-accounting notice at the
beginning of the requested event and a stop-accounting notice at the end.
– wait-start: ensures that the TACACS+ security server acknowledges the start notice before
granting the user's process request.
– stop-only: use for minimal accounting; instructs the TACACS+ server to send a stop record
accounting notice at the end of the requested user process.
– tacacs+: designate the security service. Currently, Dell Networking OS supports only TACACS+.
Suppressing AAA Accounting for Null Username Sessions
When you activate AAA accounting, the Dell Networking OS software issues accounting records for all
users on the system, including users whose username string is NULL because of protocol translation.
An example of this is a user who comes in on a line where the AAA authentication login method-list
none
command is applied. To prevent accounting records from being generated for sessions that do not
have usernames associated with them, use the following command.
• Prevent accounting records from being generated for users whose username string is NULL.
CONFIGURATION mode
aaa accounting suppress null-username
Security for M I/O Aggregator
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