To Next Page

To Previous Page

CHAPTER9 Getting Started with SNMP

Mediant 800 SBC | SNMP Reference Guide

(config-system)# snmp trap

(snmp-trap)# community-string

■ SNMPv3 Settings: When using SNMPv3 settings it is important to note that by default the

trap configuration remains such that the traps are sent out in SNMPv2c mode. To have

traps sent out in SNMPv3, you can use either ini file or SNMP:

● INI file: amongst the SNMPv3 users ensure that you also define a trap user (the value

of 2 in the SNMPUsers_Group indicates the trap user). For example: you can have the

SNMP users table defined with a read-write user, ‘rwmd5des’ with MD5 authentication

and DES privacy, along with a trap user, ‘tmd5no’ with SHA authentication and DES

privacy:

[ SNMPUsers ]

FORMAT SNMPUsers_Index = SNMPUsers_Username, SNMPUsers_

AuthProtocol, SNMPUsers_PrivProtocol, SNMPUsers_AuthKey,

SNMPUsers_PrivKey, SNMPUsers_Group;

SNMPUsers 1 = rwmd5des, 1, 1, myauthkey, myprivkey, 1;

SNMPUsers 2 = tshades, 2, 1, myauthkey, myprivkey, 2

[ \SNMPUsers ]

● If you define a trap user only, the device runs in SNMPv3 mode but will not be

accessible as there are no defined read-write or even read-only users.

● If you define non-default community strings (SNMPv2c), you need to access the

device via SNMPv2c.

Along with this configuration, you also need to associate the trap targets

(managers) with the user:

SNMPMANAGERTRAPUSER_x=tshades

where x is the target index and can be between 0 and 4.

Any targets that are defined in the ini file where this last parameter isn’t defined,

receives SNMPv2c traps.

● SNMP: change snmpTargetAddrParams object to the user of your choice adding the

letters ‘usm’ as prefix (ensure it’s a trap user). For example, the ‘tshades’ user should

be added as ‘usmtshades’.

Carrier Grade Alarm (CGA)

A carrier-grade alarm system provides a reliable alarm reporting mechanism that takes into

account element management system outages, network outages, and transport mechanism

such as SNMP over UDP.

A carrier-grade alarm system is characterized by the following:

- 183 -

AudioCodes Mediant 800 Reference Guide

Other manuals for AudioCodes Mediant 800