IPGW-MIB

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Category: IP and Core Protocols

Description: IP gateway MIB providing SNMP objects for monitoring and managing IP gateway devices including routing and WAN interface status.

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What Is IPGW-MIB?

IPGW-MIB is a vendor MIB, apparently from US Robotics/3Com's NAS (Network Access Server) product line, defining SNMP objects for configuring and monitoring an IP gateway device's routing and WAN-facing settings. It exposes gateway configuration data such as local and gateway IP addresses, subnet masks, Ethernet framing type, SNMP trap destinations, and community strings, alongside a command table for issuing management operations. Its monitoring value centers on software/configuration status of the gateway function: confirming the correct IP addressing, framing, and trap-destination settings are in place, and using ipgwCmdTable-driven commands to check or change device state. It appears to be a standalone proprietary MIB without an explicit dependency on other standard MIBs mentioned in its source. Deployment context is small-office or remote-access gateway/NAS devices providing IP routing between a LAN and a WAN or dial-up network. Engineers can download the IPGW-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in IPGW-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

US Robotics/3Com NAS IP gateway

Monitoring Examples

An administrator would poll ipgwCfgTable/ipgwCfgEntry, keyed by ipgwCfgIndex, to verify ipgwCfgLocalIpAdrs, ipgwCfgGatewayIpAdrs, and ipgwCfgGatewayNetMask are correctly provisioned for a given gateway instance. Checking ipgwCfgTrapDest and ipgwCfgDefCommStr confirms SNMP trap delivery and community-string configuration are set as expected, which matters when traps stop arriving from a remote gateway. ipgwCfgEthnetFraming and ipgwCfgEthIfaceName would be reviewed if the Ethernet-side interface is not passing traffic correctly, and ipgwCmdTable entries would be used to issue or verify management commands against the device.

What Can Be Monitored

local and gateway IP address configuration
gateway subnet mask
Ethernet framing type
SNMP trap destination
default management station IP and community string
gateway command status

Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
Gauge
IpAddress
TimeTicks
enterprises
experimental

From RFC1213-MIB

DisplayString

OIDs

OID symbolic	OID numeric	Type	Access	Description
usr	1.3.6.1.4.1.429
nas	1.3.6.1.4.1.429.1
ipgw	1.3.6.1.4.1.429.1.13
ipgwCfg	1.3.6.1.4.1.429.1.13.1
ipgwCfgTable	1.3.6.1.4.1.429.1.13.1.1		not-accessible	The IP Gateway Card Configuration Table contains an entry for each of the manageable IP Gateway Card in the chassis. It contains objects that reflect the current configuration of parameters that affect the operation of all the entities that reside on the given card.
ipgwCfgEntry	1.3.6.1.4.1.429.1.13.1.1.1		not-accessible	There is one IP Gateway Card Configuration table entry per IP Gateway Card in the chassis.
INT ipgwCfgIndex	1.3.6.1.4.1.429.1.13.1.1.1.1	INTEGER	read-only	A unique value for each IP Gateway Card in the chassis. The value of ipgwCfgIndex matches the value of the index for the corresponding IP Gateway Card entity in the entity table of the chassis MIB.
IP ipgwCfgLocalIpAdrs	1.3.6.1.4.1.429.1.13.1.1.1.2	IpAddress	read-write	Specifies the local IP address used by the IP Gateway Card for management related access.
IP ipgwCfgGatewayIpAdrs	1.3.6.1.4.1.429.1.13.1.1.1.3	IpAddress	read-write	Specifies the IP address of the gateway for the IP Gateway card.
INT ipgwCfgTrapDest	1.3.6.1.4.1.429.1.13.1.1.1.4	INTEGER	read-write	Specifies whether the IP Gateway Card sends SNMP traps to the NMC or only to its locally configured management stations. Default=local.
IP ipgwCfgGatewayNetMask	1.3.6.1.4.1.429.1.13.1.1.1.5	IpAddress	read-write	Specifies the subnet mask for the IP Gateway Card.
INT ipgwCfgEthnetFraming	1.3.6.1.4.1.429.1.13.1.1.1.6	INTEGER	read-write	Specifies the type of ethernet framing used by the IP Gateway Card.
STR ipgwCfgEthIfaceName	1.3.6.1.4.1.429.1.13.1.1.1.7	DisplayString	read-write	Specifies the name of the ethernet interface that is to be used by the IP Gateway Card.
IP ipgwCfgDefMgmtStationIp	1.3.6.1.4.1.429.1.13.1.1.1.8	IpAddress	read-write	IP address of a management station allowed to manage the IP Gateway Card. Used with the community string for management security. Default =0.0.0.0.
STR ipgwCfgDefCommStr	1.3.6.1.4.1.429.1.13.1.1.1.9	DisplayString	read-write	Specifies the default SNMP community string to be used by a management station in communicating with the IP Gateway Card. Used with the default management station IP address for management security access.
ipgwCmd	1.3.6.1.4.1.429.1.13.3
ipgwCmdTable	1.3.6.1.4.1.429.1.13.3.1		not-accessible	The IP Card Command table contains an entry for each of the manageable IP Gateway Card in the chassis. It provides a means through which to take specific actions on one or more IP Gateway cards in the NAS chassis.
ipgwCmdEntry	1.3.6.1.4.1.429.1.13.3.1.1		not-accessible	There is one IP Gateway Card Command entry per IP Gateway Card in the chassis.
INT ipgwCmdIndex	1.3.6.1.4.1.429.1.13.3.1.1.1	INTEGER	read-only	A unique value for each IP Gateway Card in the chassis. The value of this object matches the value of the index of the correspond1ing IP Gateway Card's entry in the entity table of the chassis MIB.
OCT ipgwCmdMgtStationId	1.3.6.1.4.1.429.1.13.3.1.1.2	OCTET STRING	read-write	This object is a generic read-write variable that a Management Station (MS) can use to guarantee that the results from a given command are the results of a command issued by that specific MS. Each MS must SET a unique value to this object when doing commands and GET the value of this object together with ipgwCmdReqId and ipgwCmdResult to detect interference from other MSs.
INT ipgwCmdReqId	1.3.6.1.4.1.429.1.13.3.1.1.3	INTEGER	read-only	This object contains the value of the request-id field in the SNMP PDU which invoked the current or most recent command or test on this IP Gateway Card. If the request-id is unknown or undefined, this object contains the value zero.
INT ipgwCmdFunction	1.3.6.1.4.1.429.1.13.3.1.1.4	INTEGER	read-write	This object contains a value which describes the command which is being invoked.
INT ipgwCmdForce	1.3.6.1.4.1.429.1.13.3.1.1.5	INTEGER	read-write	In some cases, the IP Gateway Card may be in a state such that certain commands could adversely affect connections. In such cases, a command request with this object not present or set to noForce will result in a warning. If the operator elects to ignore such warnings, this object can be set to force in a subsequent issue of the command to cause the command to be carried out regardless of its potentially hazzardous effects.
OCT ipgwCmdParam	1.3.6.1.4.1.429.1.13.3.1.1.6	OCTET STRING	read-write	This object contains parameters that are specific to the particular command being issued. In some cases, there will be no aditional parameters required.
INT ipgwCmdResult	1.3.6.1.4.1.429.1.13.3.1.1.7	INTEGER	read-only	This object contains the result of the most recently requested command or test, or the value none(1) if no commands have been requested since the last reset.
INT ipgwCmdCode	1.3.6.1.4.1.429.1.13.3.1.1.8	INTEGER	read-only	The value of this object upon command completion indicates a further description of what went wrong if the command was unsuccessful. In the case of tests, a bit mapped result of each of the sub-tests performed can be found in the status table.
ipgwTrap	1.3.6.1.4.1.429.1.13.4
ipgwTrapEnaTable	1.3.6.1.4.1.429.1.13.4.1		not-accessible	Table containing objects to enable traps on the IP Gateway Cards in the chassis.
ipgwTrapEnaEntry	1.3.6.1.4.1.429.1.13.4.1.1		not-accessible	There is one entry for each IP Gateway Card in the chassis.
INT ipgwTrapEnaIndex	1.3.6.1.4.1.429.1.13.4.1.1.1	INTEGER	read-only	A unique index identifying the IP Gateway Card to which the trap enable objects pertain.
INT ipgwTrapEnaUiReset	1.3.6.1.4.1.429.1.13.4.1.1.2	INTEGER	read-write	Enables reporting of traps for card reset requests initiated from the Gateway NAC user interface.

RFC description

IP gateway management MIB; defines objects for monitoring and managing IP gateway functionality and routing operations.

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Download IPGW-MIB

What Is IPGW-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description