ZyXEL Communications Internet Security Gateway ZyWALL 2 Series - Manual (Page 310)

ZyWALL 2 Series User’s Guide
17-24 Remote Management Screens
• Get - Allows the manager to retrieve an object variable from the agent.
• GetNext - Allows the manager to retrieve the next object variable from a table or list within an agent. In
SNMPv1, when a manager wants to retrieve all elements of a table from an agent, it initiates a Get
operation, followed by a series of GetNext operations.
• Set - Allows the manager to set values for object variables within an agent.
• Trap - Used by the agent to inform the manager of some events.
17.14.1 Supported MIBs
The ZyWALL supports MIB II that is defined in RFC-1213 and RFC-1215. The focus of the MIBs is to let
administrators collect statistical data and monitor status and performance.
17.14.2 SNMP Traps
The ZyWALL will send traps to the SNMP manager when any one of the following events occurs:
Table 17-5 SNMP Traps
TRAP # TRAP NAME DESCRIPTION
0 coldStart (defined in RFC-1215) A trap is sent after booting (power on).
1 warmStart (defined in RFC-1215) A trap is sent after booting (software reboot).
4 authenticationFailure (defined in
RFC-1215) A trap is sent to the manager when receiving any SNMP
get or set requirements with the wrong community
(password).
6 whyReboot (defined in MIB) A trap is sent with the reason of restart before rebooting
when the system is going to restart (warm start).
6a For intentional reboot : A trap is sent with the message "System reboot by user!"
if reboot is done intentionally, (for example, download new
files, CI command "sys reboot", etc.).
6b For fatal error : A trap is sent with the message of the fatal code if the
system reboots because of fatal errors.