BEGEMOT-SNMPD-MIB

All MIBs › BEGEMOT-SNMPD-MIB

Organization: Fraunhofer FOKUS, CATS

Last Updated: 2002-12-04

Category: Device Management, Net-SNMP and Linux, SNMP Framework

Description: Manages the FreeBSD bsnmpd SNMP daemon itself, including community configuration and module loading.

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What Is BEGEMOT-SNMPD-MIB?

BEGEMOT-SNMPD-MIB is the self-management module for the Begemot bsnmpd SNMP agent daemon that ships with FreeBSD and related BSD systems, so it belongs to the open-source Unix networking/system-management space rather than a commercial vendor. It exposes configuration data about the SNMP daemon itself: transmit and receive buffer sizes, enabled SNMP protocol versions, community string controls, listening port assignments, and trap-sink (notification destination) definitions. Rather than reporting hardware health, it is used to monitor and verify the software status of the SNMP subsystem itself -- whether the daemon is reachable, which versions/communities are active, buffer sizing that could cause dropped packets, and where traps are being forwarded. It is tightly coupled to the base SNMPv2/SNMPv3 framework MIBs (SNMPv2-MIB, SNMP-FRAMEWORK-MIB) since it configures behavior of the agent process that serves them. It is typically deployed on FreeBSD-based routers, firewalls, and embedded appliances that use bsnmpd as their native SNMP agent. Engineers can download the BEGEMOT-SNMPD-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in BEGEMOT-SNMPD-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

FreeBSD-based routers/firewalls
embedded BSD appliances running bsnmpd

Monitoring Examples

An administrator would poll begemotSnmpdTransmitBuffer and begemotSnmpdReceiveBuffer to confirm the daemon's socket buffers are large enough for the polling load, and check begemotSnmpdCommunityDisable to verify no communities were inadvertently disabled after a config reload. Walking begemotTrapSinkTable/begemotTrapSinkEntry (with begemotTrapSinkAddr, begemotTrapSinkPort, begemotTrapSinkStatus) reveals whether trap destinations are correctly configured and active. A trap-sink entry stuck in a non-active begemotTrapSinkStatus would explain why alerts from that device are not reaching the NMS.

What Can Be Monitored

SNMP daemon transmit/receive buffer size
enabled SNMP protocol versions
community string enable/disable state
trap sink destination address and port
trap sink row status
SNMP listening port assignments

Imported Objects

From BEGEMOT-MIB

begemot

MODULE-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
IpAddress
MODULE-IDENTITY
OBJECT-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using begemotSnmpdStatsNoRxBufs OID:

Select a FreeBSD hosts/appliances running the Begemot bsnmpd SNMP agent as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type begemotSnmpdStatsNoRxBufs into the Find box to locate it in the OID tree, then select it and click OK. It reports the number of times a receive buffer could not be allocated for a packet. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
begemotSnmpd	1.3.6.1.4.1.12325.1.1			The MIB module for the Begemot SNMP daemon.
begemotSnmpdObjects	1.3.6.1.4.1.12325.1.1.1
begemotSnmpdConfig	1.3.6.1.4.1.12325.1.1.1.1
INT begemotSnmpdTransmitBuffer	1.3.6.1.4.1.12325.1.1.1.1.1	INTEGER	read-write	The size of the receive buffer in bytes. Larger messages are dropped by SNMPd.
INT begemotSnmpdReceiveBuffer	1.3.6.1.4.1.12325.1.1.1.1.2	INTEGER	read-write	The size of the transmit buffer in bytes. Larger messages cannot be sent by the SNMPd.
T/F begemotSnmpdCommunityDisable	1.3.6.1.4.1.12325.1.1.1.1.3	TruthValue	read-write	Disables all access to the CommunityTable from SNMP. Once set it cannot be cleared.
IP begemotSnmpdTrap1Addr	1.3.6.1.4.1.12325.1.1.1.1.4	IpAddress	read-write	The trap sink for v1 traps.
U32 begemotSnmpdVersionEnable	1.3.6.1.4.1.12325.1.1.1.1.5	Unsigned32	read-only	The SNMP versions that the agent processes. The following bits are defined: 0x00000001 - SNMPv1 0x00000002 - SNMPv2c
begemotTrapSinkTable	1.3.6.1.4.1.12325.1.1.1.2		not-accessible	A table with destinations for standard traps.
begemotTrapSinkEntry	1.3.6.1.4.1.12325.1.1.1.2.1		not-accessible	Entry describes one trap destination.
IP begemotTrapSinkAddr	1.3.6.1.4.1.12325.1.1.1.2.1.1	IpAddress	not-accessible	Destination IP address of the manager station where to send traps.
INT begemotTrapSinkPort	1.3.6.1.4.1.12325.1.1.1.2.1.2	INTEGER	not-accessible	Destination UDP port of the manager station where to send traps.
ROW begemotTrapSinkStatus	1.3.6.1.4.1.12325.1.1.1.2.1.3	RowStatus	read-create	Used to create/activate/destroy the entry.
begemotSnmpdPortTable	1.3.6.1.4.1.12325.1.1.1.4		not-accessible	A table with descriptions of UDP ports to listen on for SNMP messages.
begemotSnmpdPortEntry	1.3.6.1.4.1.12325.1.1.1.4.1		not-accessible	An entry in the table with descriptions of UDP ports to listen on for SNMP messages.
IP begemotSnmpdPortAddress	1.3.6.1.4.1.12325.1.1.1.4.1.1	IpAddress	not-accessible	The IP address to bind to.
INT begemotSnmpdPortPort	1.3.6.1.4.1.12325.1.1.1.4.1.2	INTEGER	not-accessible	The UDP port to listen on for SNMP messages.
INT begemotSnmpdPortStatus	1.3.6.1.4.1.12325.1.1.1.4.1.3	INTEGER	read-create	Set status to 1 to create entry, set it to 2 to delete it.
begemotSnmpdCommunityTable	1.3.6.1.4.1.12325.1.1.1.5		not-accessible	A table with the community strings for access control.
begemotSnmpdCommunityEntry	1.3.6.1.4.1.12325.1.1.1.5.1		not-accessible	A table with the community strings for access control. When begemotSnmpdCommDisable is true, this table disappears.
SEC begemotSnmpdCommunityModule	1.3.6.1.4.1.12325.1.1.1.5.1.1	SectionName	not-accessible	Index of the module that has registered this community. For global communities this is the empty string.
U32 begemotSnmpdCommunityIndex	1.3.6.1.4.1.12325.1.1.1.5.1.2	Unsigned32	not-accessible	The numerical index of the community (private to the module).
OCT begemotSnmpdCommunityString	1.3.6.1.4.1.12325.1.1.1.5.1.3	OCTET STRING	read-write	The string for access to SNMPd.
OCT begemotSnmpdCommunityDescr	1.3.6.1.4.1.12325.1.1.1.5.1.4	OCTET STRING	read-only	A description what this community is good for.
begemotSnmpdModuleTable	1.3.6.1.4.1.12325.1.1.1.6		not-accessible	A table describing all the currently loaded dynamic modules. Writing to this table loads and unloads modules.
begemotSnmpdModuleEntry	1.3.6.1.4.1.12325.1.1.1.6.1		not-accessible	A table entry describing a loadable module.
SEC begemotSnmpdModuleSection	1.3.6.1.4.1.12325.1.1.1.6.1.1	SectionName	not-accessible	The string used for matching configuration file sections and indexes the module table.
OCT begemotSnmpdModulePath	1.3.6.1.4.1.12325.1.1.1.6.1.2	OCTET STRING	read-create	The path name of the module. Set to empty string to unload a module. The path of an existing module may not be changed.
OCT begemotSnmpdModuleComment	1.3.6.1.4.1.12325.1.1.1.6.1.3	OCTET STRING	read-only	A comment describing this module.
begemotSnmpdStats	1.3.6.1.4.1.12325.1.1.1.7
C32 begemotSnmpdStatsNoRxBufsEx	1.3.6.1.4.1.12325.1.1.1.7.1	Counter32	read-only	Number of times a receive buffer could not be allocated for a packet.
C32 begemotSnmpdStatsNoTxBufs	1.3.6.1.4.1.12325.1.1.1.7.2	Counter32	read-only	Number of times a transmit buffer could not be allocated for a packet.
C32 begemotSnmpdStatsInTooLongPkts	1.3.6.1.4.1.12325.1.1.1.7.3	Counter32	read-only	Number of packets received that were longer than the receive buffer. These packets are dropped.
C32 begemotSnmpdStatsInBadPduTypes	1.3.6.1.4.1.12325.1.1.1.7.4	Counter32	read-only	Number of packets received with a bad type field.
begemotSnmpdDebug	1.3.6.1.4.1.12325.1.1.1.8
T/F begemotSnmpdDebugDumpPdus	1.3.6.1.4.1.12325.1.1.1.8.1	TruthValue	read-write	Dump PDUs to log file if true.
U32 begemotSnmpdDebugSnmpTrace	1.3.6.1.4.1.12325.1.1.1.8.2	Unsigned32	read-write	Tracing flags for the SNMP library. These flags have the following meaning: 0x00000001 trace GET operator 0x00000002 trace GETNEXT operator 0x00000004 trace SET operator 0x00000008 trace dependency processing 0x00000010 trace node finding 0x10000000 log ASN1 errors 0x20000000 log SNMP errors Individual values can be or-ed together.
INT begemotSnmpdDebugSyslogPri	1.3.6.1.4.1.12325.1.1.1.8.3	INTEGER	read-write	Events with this or higher priority should not be logged.
begemotSnmpdLocalPortTable	1.3.6.1.4.1.12325.1.1.1.9		not-accessible	A table with descriptions of local (unix domain) ports to listen on for SNMP messages.
begemotSnmpdLocalPortEntry	1.3.6.1.4.1.12325.1.1.1.9.1		not-accessible	An entry in the table with descriptions of local ports to listen on for SNMP messages.
OCT begemotSnmpdLocalPortPath	1.3.6.1.4.1.12325.1.1.1.9.1.1	OCTET STRING	not-accessible	The path name to create and listen on.
INT begemotSnmpdLocalPortStatus	1.3.6.1.4.1.12325.1.1.1.9.1.2	INTEGER	read-create	Set status to 1 to create entry, set it to 2 to delete it.
INT begemotSnmpdLocalPortType	1.3.6.1.4.1.12325.1.1.1.9.1.3	INTEGER	read-create	Type of the port. If the type is unpriv SET operations are allowed from all clients if the community matches. For priv SET operations are allowed only from peers with uid zero. If the daemon cannot determine the peer uid it disallows the SET operation for -priv ports.
begemotSnmpdTransportMappings	1.3.6.1.4.1.12325.1.1.1.10
begemotSnmpdTransportTable	1.3.6.1.4.1.12325.1.1.1.10.1		not-accessible	A table containing all the currently loaded transport mappings.
begemotSnmpdTransportEntry	1.3.6.1.4.1.12325.1.1.1.10.1.1		not-accessible	An entry in the table with the transport mappings.
OCT begemotSnmpdTransportName	1.3.6.1.4.1.12325.1.1.1.10.1.1.1	OCTET STRING	not-accessible	The name of the mapping.
ROW begemotSnmpdTransportStatus	1.3.6.1.4.1.12325.1.1.1.10.1.1.2	RowStatus	read-only	Used to create/activate/destroy the entry.
OID begemotSnmpdTransportOid	1.3.6.1.4.1.12325.1.1.1.10.1.1.3	OBJECT IDENTIFIER	read-only	A pointer to the group with the transport-dependend stuff.
begemotSnmpdTransUdp	1.3.6.1.4.1.12325.1.1.1.10.2
begemotSnmpdTransLsock	1.3.6.1.4.1.12325.1.1.1.10.3
begemotSnmpdDefs	1.3.6.1.4.1.12325.1.1.2
begemotSnmpdAgent	1.3.6.1.4.1.12325.1.1.2.1
begemotSnmpdAgentFreeBSD	1.3.6.1.4.1.12325.1.1.2.1.1			Identifies the agent as running on FreeBSD.

RFC description

Private SNMP daemon management for Begemot SNMPd on FreeBSD systems.

Start monitoring FreeBSD hosts/appliances running the Begemot bsnmpd SNMP agent with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download BEGEMOT-SNMPD-MIB