CHGSNMPA (Change SNMP Attributes) Command

Purpose

The Change SNMP Attributes (CHGSNMPA) command is used to change values and options that are used by the OS/400 SNMP agent. The command also is used to specify which Simple Network Management Protocol (SNMP) managers receive traps that are generated by the local AS/400 system.

The SNMP agent is shipped with the following values for the SNMP attributes.

Keyword Value

SYSCONTACT *NONE

SYSLOC *NONE

SNDAUTTRP *YES

AUTOSTART *NO

OBJACC *READ

LOGSET *NO

LOGGET *NO

LOGTRP *NO

TRPMGR *NO

Optional Parameters

SYSCONTACT Specifies the name of the contact person for this AS/400 system, along with the information on how to contact this person. SNMP-specific functions use this value only. An authorized SNMP manager may also read or change this value.

*SAME: The value does not change.

*NO: No system contact exists.

*CNTINF: The value is obtained from the service contact information that is specified by using the Work with Contact Information (WRKCNTINF) command. The value obtained consists of the contact person and the contact telephone numbers.

system-contact: Specify the name of the contact person and other contact information. All of the characters that are specified must be able to be translated into the ASCII character set.

SYSLOC Specifies the physical location of this AS/400 system. SNMP-specific functions use this value only. An authorized SNMP manager may read or change this value.

*SAME: The value does not change.

*NONE: No system location information exists.

*CNTIBF: The value is obtained from the service contact information that is specified by using the Work with Contact Information (WRKCNTINF) command. The value obtained consists the contact mailing address.

system-location: Specify the physical location of the system. All of the characters that are specified must be able to be translated by the ASCII character set.

SNDAUTTRP Specifies whether the SNMP agent may send any authenticationFailure traps to any defined SNMP managers. An authenticationFailure trap is sent by the SNMP agent if a request is received from the SNMP manager that contains a community name that is not recognized by the SNMP agent. This trap is only sent when SNDAUTTRP is *YES and when at least one trap manager has been defined. An authorized SNMP manager may also read or change this value.

*SAME: The value does not change.

*YES: AuthenticationFailure trap may be sent.

*NO: AuthenticationFailure trap is not sent.

AUTOSTART Specifies whether the SNMP agent is started when the STRTCP command runs.

*SAME: The value does not change.

*YES: The SNMP agent is started when the STRTCP command runs.

*NO: The SNMP agent is not started when the STRTCP command runs.

OBJACC Specifies the default object access for SNMP communities.

*SAME: The value does not change.

*READ: Allow SNMP managers that are part of the community to read all Management Information Base (MIB) objects. Modification of MID objects by SNMP managers is not permitted.

*WRITE: Allow SNMP managers that are part of the community to change all MIB objects that can be changed. Specifying *WRITE implies *READ access.

*NONE: Do not allow SNMP managers that are part of the community to change any MIB objects.

LOGSET Specifies the default value for whether set requests from SNMP managers in a community are logged in journal QSNMP in library QUSRSYS.

*SAME: The value does not change.

*YES: Set requests are logged.

*NO: Set requests are not logged.

LOGGET Specifies the default value for whether get requests and get-next requests from SNMP managers in a community are logged in journal QSNMP in library QUSRSYS.

*SAME: The value is not changed.

*YES: Get requests and get-next requests are logged.

*NO: Get requests and get-next requests are not logged.

LOGTRP Specifies whether traps are logged in journal QSNMP in library QUSRSYS.

*SAME: The value does not change.

*YES: Traps are logged.

*NO: Traps are not logged.

TRPMGR Specifies which SNMP managers receive traps that are generated by this AS/400 system.

*SAME: The value does not change.

*NONE: No SNMP managers receive traps.

Element 1: Manager Internet Address

manager-internet-address: Specify the internet address of the SNMP manager. The address must be of the form nnn.nnn.nnn.nnn where nnn is a decimal number ranging form 0 to 255. This address is independent of the manager internet address that is specified on the ADDCOMSNMP and CHGCOMSNMP commands.

Element 2: Community Name

community-name: Specify the SNMP community name to be placed in the traps that are sent to this SNMP manager. The community name specified in this element is independent of the community name that is specified on the ADDCOMSNMP, CHGCOMSNMP, and RMVCOMSNMP commands. The name may contain characters that cannot be displayed.

Element 3: Translate Community Name

*YES: The community name is translated to ASCII characters when a trap is sent to the SNMP manager. This value should be specified when the community name consists entirely of characters that can be displayed. An error message is sent if the community name cannot be translated to ASCII characters.

*NO: The community name is not translated to ASCII characters when a trap is sent to the SNMP manager. This value should be specified when the community name consists one or more characters that cannot be displayed.

Examples

Example 1: Changing System Contact and Automatic Start

CHGSNMPA SYSCONTACT('Joe Smith, Phone 555-1212') AUTOSTART(*NO)

This command changes the system contact information and specifies that the SNMP agent should not start when the STRTCP command runs. All other values are unchanged.

Example 2: Changing Trap Managers

CHGSNMPA TRPMGR(('9.8.7.6' TRAPCOMMUNITY') ('9.8.7.5' TRAPCOMMUNITY2'))

This command causes any traps that are generated by the local AS/400 system to be sent to SNMP managers that have internet protocol addresses 9.8.7.6 and 9.8.7.5. Community name TRAPCOMMUNITY is placed in traps that are sent to 9.8.7.6, and community name TRAPCOMMUNITY2 is placed in traps that are sent to 9.8.7.5. For both mangers the community name is translated to ASCII characters before being placed in the trap.