Checking CRLs

A CA maintains a CRL that contains a list of certificates that have been revoked before their expiration date. Expired client certificates are not accepted for any user-centric network service. Certificates may be revoked because certificate key has been compromised or the user specified in the certificate is no longer authorized to use the key.

When a client certificate is being authenticated for a user-centric network service, the controller checks with the appropriate CA to make sure that the certificate has not been revoked.

NOTE: The controller does not support download of CRLs.

Configuring SNMP

Dell controllers support versions 1, 2c, and 3 of Simple Network Management Protocol (SNMP) for reporting purposes only. In other words, SNMP cannot be used for setting values in a Dell system in the current ArubaOS version.

NOTE: Dell-specific management information bases (MIBs) describe the objects that can be managed using SNMP. See the Dell

PowerConnect W-Series ArubaOS MIB Reference Guide for information about the Dell MIBs and SNMP traps.

SNMP Parameters for the Controller

You can configure the following SNMP parameters for the controller.

Table 256: SNMP Parameters for the Controller

Field

Description

Host Name

Host name of the controller.

 

 

System Contact

Name of the person who acts as the System Contact or administrator for the controller.

 

 

System Location

String to describe the location of the controller.

 

 

Read Community Strings

Community strings used to authenticate requests for SNMP versions before version 3.

 

NOTE: This is needed only if using SNMP v2c and is not needed if using version 3.

 

 

Enable Trap Generation

Enables generation of SNMP traps to configured SNMP trap receivers. Refer to the list

 

of traps in the “SNMP traps” section below for a list of traps that are generated by the

 

controller.

 

 

Trap receivers

Host information about a trap receiver. This host needs to be running a trap receiver to

 

receive and interpret the traps sent by the Dell controller. Configure the following for

 

each host/trap receiver:

 

•

IP address

 

• SNMP version: can be 1, 2c, or 3.

 

• Type: Trap or Inform (SNMPv2c or SNMPv3 only)

 

• Engine ID: (SNMPv3 only)

 

•

Security string

 

• UDP port on which the trap receiver is listening for traps. The default is the UDP

 

 

port number 162. This is optional, and will use the default port number if not

 

 

modified by the user.

 

 

 

Dell PowerConnect W-Series ArubaOS 6.2 User Guide

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