ZyXEL GS1920 Series User Guide - Page 319

SNMP v3 and Security, Supported MIBs, SNMP Traps

Page 319 highlights

Chapter 38 Access Control SNMP v3 and Security SNMP v3 enhances security for SNMP management. SNMP managers can be required to authenticate with agents before conducting SNMP management sessions. 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. Supported MIBs MIBs let administrators collect statistics and monitor status and performance. The Switch supports the following MIBs: • SNMP MIB II (RFC 1213) • RFC 1157 SNMP v1 • RFC 1493 Bridge MIBs • RFC 1643 Ethernet MIBs • RFC 1155 SMI • RFC 2674 SNMPv2, SNMPv2c • RFC 1757 RMON • SNMPv2, SNMPv2c or later version, compliant with RFC 2011 SNMPv2 MIB for IP, RFC 2012 SNMPv2 MIB for TCP, RFC 2013 SNMPv2 MIB for UDP SNMP Traps The Switch sends traps to an SNMP manager when an event occurs. The following tables outline the SNMP traps by category. Table 161 SNMP System Traps OPTION coldstart OBJECT LABEL coldStart OBJECT ID 1.3.6.1.6.3.1.1.5.1 warmstart warmStart 1.3.6.1.6.3.1.1.5.2 linkup linkUp 1.3.6.1.6.3.1.1.5.4 linkdown linkDown 1.3.6.1.6.3.1.1.5.3 lldp lldpRemTablesChange 1.0.8802.1.1.2.0.0.1 DESCRIPTION This trap is sent when the Switch is turned on. This trap is sent when the Switch restarts. This trap is sent when the Ethernet link is up. This trap is sent when the Ethernet link is down. The trap is sent when entries in the remote database have any updates. Link Layer Discovery Protocol (LLDP), defined as IEEE 802.1ab, enables LAN devices that support LLDP to exchange their configured settings. This helps eliminate configuration mismatch issues. GS1920 Series User's Guide 319

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Chapter 38 Access Control
GS1920 Series User’s Guide
319
SNMP v3 and Security
SNMP v3 enhances security for SNMP management. SNMP managers can be required to
authenticate with agents before conducting SNMP management sessions.
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.
Supported MIBs
MIBs let administrators collect statistics and monitor status and performance.
The Switch supports the following MIBs:
SNMP MIB II (RFC 1213)
RFC 1157 SNMP v1
RFC 1493 Bridge MIBs
RFC 1643 Ethernet MIBs
RFC 1155 SMI
RFC 2674 SNMPv2, SNMPv2c
RFC 1757 RMON
SNMPv2, SNMPv2c or later version, compliant with RFC 2011 SNMPv2 MIB for IP, RFC 2012
SNMPv2 MIB for TCP, RFC 2013 SNMPv2 MIB for UDP
SNMP Traps
The Switch sends traps to an SNMP manager when an event occurs. The following tables outline the
SNMP traps by category.
Table 161
SNMP System Traps
OPTION
OBJECT LABEL
OBJECT ID
DESCRIPTION
coldstart
coldStart
1.3.6.1.6.3.1.1.5.1
This trap is sent when the Switch is
turned on.
warmstart
warmStart
1.3.6.1.6.3.1.1.5.2
This trap is sent when the Switch
restarts.
linkup
linkUp
1.3.6.1.6.3.1.1.5.4
This trap is sent when the Ethernet
link is up.
linkdown
linkDown
1.3.6.1.6.3.1.1.5.3
This trap is sent when the Ethernet
link is down.
lldp
lldpRemTablesChange
1.0.8802.1.1.2.0.0.1
The trap is sent when entries in the
remote database have any updates.
Link Layer Discovery Protocol
(LLDP), defined as IEEE 802.1ab,
enables LAN devices that support
LLDP to exchange their configured
settings. This helps eliminate
configuration mismatch issues.