ZyXEL Communications ZyWALL 300 User Manual

Chapter 44 Service Control

ZyWALL USG 300 User’s Guide

• 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.

The ZyWALL supports MIB II that is defined in RFC-1213 and RFC-1215. The ZyWALL 
also supports private MIBs (zywall.mib and zyxel-zywall-ZLD-Common.mib) to collect 
information about CPU and memory usage and VPN total throughput. The focus of the MIBs 
is to let administrators collect statistical data and monitor status and performance. You can 
download the ZyWALL’s MIBs from www.zyxel.com.

The ZyWALL will send traps to the SNMP manager when any one of the following events 
occurs.

To change your ZyWALL’s SNMP settings, click System > SNMP tab. The screen appears as 
shown. Use this screen to configure your SNMP settings, including from which zones SNMP 
can be used to access the ZyWALL. You can also specify from which IP addresses the access 
can come.

Figure 454   System > SNMP

Table 211   SNMP Traps

Cold Start

1.3.6.1.6.3.1.1.5.1

This trap is sent when the ZyWALL is turned on or an 
agent restarts.

linkDown

1.3.6.1.6.3.1.1.5.3

This trap is sent when the Ethernet link is down.

linkUp

1.3.6.1.6.3.1.1.5.4

This trap is sent when the Ethernet link is up.

authenticationFailure

1.3.6.1.6.3.1.1.5.5

This trap is sent when an SNMP request comes from 
non-authenticated hosts.