Chapter 44 System
ZyWALL USG Series User’s Guide
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Security can be further enhanced by encrypting the SNMP messages sent from the managers.
Encryption protects the contents of the SNMP messages. When the contents of the SNMP messages are
encrypted, only the intended recipients can read them.
44.11.2 Supported MIBs
The Zyxel Device supports MIB II that is defined in RFC-1213 and RFC-1215. The Zyxel Device 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 Zyxel Device’s MIBs from
www.zyxel.com.
44.11.3 SNMP Traps
The Zyxel Device will send traps to the SNMP manager when any one of the following events occurs.
44.11.4 Configuring SNMP
To change your Zyxel Device’s SNMP settings, click
Configuration > 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 Zyxel Device. You can also specify from which IP addresses the access can
come.
Table 380 SNMP Traps
OBJECT LABEL
OBJECT ID
DESCRIPTION
Cold Start
1.3.6.1.6.3.1.1.5.1
This trap is sent when the Zyxel Device 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.
vpnTunnelDisconnected 1.3.6.1.4.1.890.1.6.22.2.3
This trap is sent when an IPSec VPN tunnel is
disconnected.
vpnTunnelName
1.3.6.1.4.1.890.1.6.22.2.2.1.1
This trap is sent along with the
vpnTunnelDisconnected trap. This trap carries the
disconnected tunnel’s IPSec SA name.
vpnIKEName
1.3.6.1.4.1.890.1.6.22.2.2.1.2
This trap is sent along with the
vpnTunnelDisconnected trap. This trap carries the
disconnected tunnel’s IKE SA name.
vpnTunnelSPI
1.3.6.1.4.1.890.1.6.22.2.2.1.3
This trap is sent along with the
vpnTunnelDisconnected trap. This trap carries the
security parameter index (SPI) of the disconnected
VPN tunnel.
Summary of Contents for USG110
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