ZyXEL P-861H-G2 User Guide - Page 104
Supported MIBs, SNMP Traps
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Prestige 861H Series User's Guide • 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. 9.5.1 Supported MIBs The Prestige 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. 9.5.2 SNMP Traps The Prestige will send traps to the SNMP manager when any one of the following events occurs: Table 24 SNMP Traps TRAP # TRAP NAME 0 coldStart (defined in RFC-1215) DESCRIPTION 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 ZYXEL-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 : 6b For fatal error : 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.). A trap is sent with the message of the fatal code if the system reboots because of fatal errors 9.6 ICMP If an outside user attempts to probe an unsupported port on your Prestige, an ICMP response packet is automatically returned. This allows the outside user to know the Prestige exists. Your Prestige supports anti-probing, which prevents the ICMP response packet from being sent. This keeps outsiders from discovering your Prestige when unsupported ports are probed. 103 Chapter 9 Remote Management Configuration