snmpd(8) CLIX snmpd(8)
NAME
snmpd - Runs the Simple Network Management Protocol (SNMP) agent for
Intergraph workstations and servers
SYNOPSIS
/etc/snmpd -W [-p port] [-h host]
/etc/snmpd.1 -C [-p port] [-h host]
FLAGS
-C Sends a coldstart trap at agent startup, contingent on local trap
configuration.
-W Sends a warmstart trap at agent startup, contingent on local trap
configuration.
-h Binds the SNMP agent to this Internet address/hostname to listen for
SNMP messages.
-p Binds the SNMP agent to this UDP port instead of the "snmp" port
defined in /etc/services to listen for SNMP messages
DESCRIPTION
The snmpd daemon is the Simple Network Management Protocol (SNMP) agent
that executes at system startup (/etc/snmpd.1) or multiuser startup
(/etc/snmpd) to service SNMP requests.
The SNMP agent allows an Intergraph workstation or server to participate
in network management via the Simple Network Management Protocol. The
following Request for Comments (RFC's) are supported by the Intergraph
SNMP agent, and they provide the user with additional background
information on the SNMP:
RFC1155: Structure and Identification of Management Information for
TCP/IP-based Internets (SMI).
RFC1157: A Simple Network Management Protocol (SNMP).
RFC1212: Concise MIB Definitions.
RFC1213: Management Information Base for Network Management of TCP/IP-
based Internets: MIB-II.
RFC1229: Extensions to the Generic-Interface MIB.
RFC1231: IEEE 802.5 Token Ring MIB.
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snmpd(8) CLIX snmpd(8)
RFC1239: Reassignment of Experimental MIBs to Standard MIBs.
RFC1284: Definitions of Managed Objects for the Ethernet-like Interface
types.
RFC1285: FDDI Management Information Base.
The Intergraph private MIB is delivered in the doc subdirectory of the
SNMP product.
The SNMP agent can be configured to start at system boot when the network
interfaces are configured, or it can be configured to start when the
system enters a mulituser state. If the agent is configured to start at
system boot, the agent will be running if the system is brought up in a
single user mode. The agent startup may be configured by the Network
Management System (NMS) product or any appropriate network management
system, or the agent startup may be configured locally with the snmpconfig
utility delivered with the SNMP product.
The concept of two MIB views are supported by the SNMP agent, a public MIB
view and a private MIB view. The public MIB view provides read only
access to all object instances defined by the supported MIBs. The public
MIB view is accessed by the "public" community string. This string may
not be changed. The private MIB view provides read-write access to
certain MIB variables. It is suggested that you configure the private
community string when the product is first installed. If the private
community string is not configured at installation, a default null-string
is configured for the private MIB view. The null-string inhibits all
access to the private MIB view. The agent must be locally configured with
the snmpconfig utility before access is granted to the private MIB view.
Subsequent product installations will use the last configured private
community string. The private MIB community string may be configured by
the NMS product or any appropriate network management system, or the
private MIB community string may be configured locally with the snmpconfig
utility. You should protect this private community string from
disclosure.
The SNMP agent supports the delivery of certain traps to an appropriate
network management system. The traps are defined as follows:
Cold Start Trap The agent is initializing itself as if the system's
network configuration has been altered.
Warm Start Trap The agent is initializing itself as if the system's
network configuration has not been altered.
Link Down Trap The agent recognizes a failure in one of the active
communication links in the system's network
configuration.
Link Up Trap The agent recognizes that one of the inactive
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snmpd(8) CLIX snmpd(8)
communication links in the system's network
configuration has become active.
Authentication Failure Trap
The agent recognizes that the SNMP message is not
properly authenticated.
Enterprise Specific Trap
The agent recognizes that some enterprise-specific event
has occurred.
Trap configuration, including the Trap Manager Address (NMS), may be
configured by the NMS product or any appropriate network management
system, or the trap configuration may be changed locally with the
snmpconfig utility. It should be noted that RFC1215, "A Convention for
Defining Traps for Use with the SNMP," states "the use of traps in the
Internet-standard network management framework is controversial."
EXAMPLES
The following example starts the SNMP agent at system boot and sends a
cold start trap:
[ -x /etc/snmpd.1 ] && /etc/snmpd.1 -C
FILES
/etc/.snmp_comm Private MIB view community string.
/etc/.snmp_pid Active SNMP agent process ID lock file.
/etc/.snmp_system System group information for SNMP agent.
/etc/.snmp_traps Trap configuration for SNMP agent.
DIAGNOSTICS
snmpd: lock file in use - Quitting.
Another SNMP agent is currently executing.
snmpd: must be run as root - Quitting.
The SNMP agent must be run as a root process.
EXIT VALUES
The snmpconfig command is run as a daemon and has no meaningful exit
values.
RELATED INFORMATION
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snmpd(8) CLIX snmpd(8)
Files: services(4), snmp_comm(4), snmp_pid(4), snmp_system(4),
snmp_traps(4)
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