Chapter 3: Troubleshooting text field and the IP address and MAC address in the SNMP Trap Receivers table in the SNMP group, and then click the Update button. The SNMP Trap may have multiple destinations. When any critical error occurs, an SNMP trap packet will be sent to all receivers in the list. To remove an SNMP receiv- er, you may change both IP and MAC addresses to 0.0.0.0 and 00:00:00:00:00:00 respectively, and then click Update. On the system receiving the SNMP traps, an SNMP trap receiver software needs to be installed and run. The managed system will send out an SNMP trap packet to receivers at the moment the event occurs.
If an SNMP trap receiver is not running, the trap packet is discarded and won’t be queued anywhere. 3-10 Users There are several buttons that allow you to add/delete a user, set user privileges, change passwords and enable/disable paging. Clicking on Paging Setting allows you to set the parameters for an individual user (Figure 3-8). There are two types of paging service: Numeric paging and alphanu- meric paging. To use a paging service, a modem must be connected to the RS232 connector on the BMC. 3-29 Group Privilege Levels Callback This may be considered the lowest privilege level. Only commands necessary to support initiating a Callback is allowed.
(Only avail- able for IPMI 1.5.) User Only ‘benign’ commands are allowed. These are primarily commands that read data structures and retrieve status. Commands that can be used to alter BMC configuration, write data to the BMC or other management controllers or perform system actions such as resets, power on/off, and watchdog acti- vation are not allowed. Operator All BMC commands are allowed, except for configuration commands that can change the behavior of the out-of-band interfaces. For example, Operator privilege does not allow the capability to disable individual channels or change user access privileges. Administrator All BMC commands are allowed, including configuration commands.
An Administrator can even execute configuration commands that would disable the channel that the Ad- ministrator is communicating over