Configuration file (snmpd.cnf)

Organization of this page

Format
Overview
Location
Detailed description
Definition examples

Format

snmpTargetAddrEntry <CONFIG_NAME> transportDomainUdpIpv6 \
 [<IPv6_ADDRESS>]:0 0 0 TrapConf <v1TrapParams | v2cTrapParams> readOnly \
 [ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:0 2048
 
snmpEnableAuthenTraps {1 | 2}
 
MAX_SUBAGENTS maximum-number-of-connected-subagents
 
MAX_THREADS maximum-number-of-threads-concurrently-generated-by-master-agent
 
sysName local-host-name

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Overview

This file defines the following settings:

IPv6 trap destination
Settings for the sending of authentication failure traps
Maximum number of connected subagents
Maximum number of threads concurrently generated by the master agent
sysName value

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Location

HP-UX (IPF), Solaris, AIX, and Linux: /etc/srconf/agt/snmpd.cnf

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Detailed description

snmpTargetAddrEntry

This definition specifies an IPv6 trap destination.

CONFIG_NAME: Specify any name as the configuration name.

If multiple IPv6 trap destinations are set, give each a unique configuration name. The configuration name cannot exceed 32 characters, and can contain only alphanumeric characters, including underscores.
transportDomainUdpIpv6: To specify an IPv6 address without a scope ID, specify transportDomainUdpIpv6.

To specify an IPv6 address with a scope ID, enter transportDomainUdpIpv6z.
IPv6_ADDRESS: Specify an IPv6 address for the IPv6 trap destination. A host name cannot be specified. For both SNMPv1 traps and SNMPv2c traps, you need to enclose the IPv6 address in square brackets ([ ]). Be careful not to omit these.
v1TrapParams | v2cTrapParams: Specify the protocol version for the SNMP trap.

For SNMPv1 traps: Specify v1TrapParams.
For SNMPv2c traps: Specify v2cTrapParams.

snmpEnableAuthenTraps {1 | 2}

Indicates whether the SNMP Agent process is permitted to send authentication-failure traps. The default value is 1.

1: Sends authentication failure traps.
2: Sending of authentication failure traps is disabled.

MAX_SUBAGENTS maximum-number-of-connected-subagents

This value is the maximum number of connected subagents. The minimum value and the default value of MAX_SUBAGENTS is 22. The maximum value depends on the maximum number of threads that the OS can generate in a process.

MAX_THREADS maximum-number-of-threads-concurrently-generated-by-master-agent

This value is the maximum number of threads that can be concurrently generated by the master agent. The minimum value and the default value of MAX_THREADS is 22. The maximum value depends on the maximum number of threads that the OS can generate in a process.

sysName local-host-name

This option specifies the local host name that becomes the sysName value. By default, no value is set.

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Definition examples

Below is a sample configuration for sending SNMPv1 traps to interface number 1 at IP address fec0::1111:2222:3333:4444:5555. The configuration name is Trapsend_SNMPv1_IPv6. Note that when a %scope-ID is specified, you must write transportDomainUdpIpv6z.
```
snmpTargetAddrEntry Trapsend_SNMPv1_IPv6 transportDomainUdpIpv6z \
[fec0::1111:2222:3333:4444:5555%1]:0 0 0 TrapConf v1TrapParams readOnly \
[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:0 2048
```

Below is a sample configuration for sending SNMPv2c traps to IP address fec0::1111:2222:3333:4444:5555, with no %scope-ID specified. The configuration name is Trapsend_SNMPv2c_IPv6.

snmpTargetAddrEntry Trapsend_SNMPv2c_IPv6 transportDomainUdpIpv6 \
[fec0::1111:2222:3333:4444:5555]:0 0 0 TrapConf v2cTrapParams readOnly \
[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:0 2048

Below is a sample configuration for sending SNMPv2c traps to IP address fec0::1111:2222:3333:4444:5555 and IP address fec0::aaaa:bbbb:cccc:dddd:eeee, with no %scope-ID specified. The configuration names are NNM_1 and NNM_2. Note that when multiple trap destinations are set, each must be given a unique configuration name.

snmpTargetAddrEntry NNM_1 transportDomainUdpIpv6 \
[fec0::1111:2222:3333:4444:5555]:0 0 0 TrapConf v2cTrapParams readOnly \
[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:0 2048
snmpTargetAddrEntry NNM_2 transportDomainUdpIpv6 \
[fec0::aaaa:bbbb:cccc:dddd:eeee]:0 0 0 TrapConf v2cTrapParams readOnly \
[ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]:0 2048

To suppress the sending of authentication failure traps:
```
snmpEnableAuthenTraps 2
```
Changing the maximum number of connected subagents

For details about how to change the maximum number of connected subagents, see 3.5 Changing the maximum number of connected subagents.
Procedure for changing the sysName host name

For details about how to use a new host name as the sysName value after you have installed SNMP Agent and renamed the host, see 3.7.4 Notes about renaming a host.

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