MY-ARP-MIB

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Organization: D-Link Crop.

Last Updated: 2002-03-20

Category: IP Addressing

Description: Manages D-Link switch ARP table entries, aging, and proxy ARP configuration.

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What Is MY-ARP-MIB?

MY-ARP-MIB is a private D-Link MIB for managing the switch's ARP table, entry aging behavior, and proxy ARP configuration. The sample objects available for this module are limited to its top-level conformance/structure nodes (objects, conformance, compliances, groups), so the concrete ARP table and aging/proxy-ARP leaf objects sit further down the tree but were not captured in the provided sample. An ARP MIB's core monitoring value is in address-resolution health: a stale, overflowing, or rapidly-changing ARP table can indicate an IP conflict, a failing uplink, or a network scan, while proxy ARP status is a configuration-correctness check for routed subnets. It conceptually complements the standard IP-MIB/RFC 1213 ipNetToMediaTable but is implemented as a D-Link private extension adding extra configuration knobs (aging interval, proxy ARP) not present in the standard MIB. It is deployed on D-Link managed switches in small/medium business and enterprise LANs. Engineers can download the MY-ARP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in MY-ARP-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

D-Link managed switches

Monitoring Examples

Only the top-level conformance-tree object names (myArpMIBObjects, myArpMIBConformance, myArpMIBCompliances, myArpMIBGroups) were available in the provided sample, so no concrete ARP table field names can be cited honestly; based on the description, the underlying tree would let an admin watch ARP table size and aging behavior for entries flapping abnormally, which would suggest an IP conflict or spoofing attempt.

What Can Be Monitored

ARP table entries
ARP entry aging timer
proxy ARP enable status

Imported Objects

From MY-SMI

myMgmt

OBJECT-IDENTITY

From MY-TC

IfIndex

From RFC1213-MIB

ip

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

DisplayString
PhysAddress
RowStatus
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
myArpMIB	1.3.6.1.4.1.171.10.97.2.2			This module defines my arp mibs.
myArpMIBObjects	1.3.6.1.4.1.171.10.97.2.2.1
myArpTable	1.3.6.1.4.1.171.10.97.2.2.1.1		not-accessible	The IP Address Translation table used for mapping from IP addresses to physical addresses.
myArpEntry	1.3.6.1.4.1.171.10.97.2.2.1.1.1		not-accessible	Each entry contains one IpAddress to `physical' address equivalence.
IFI myArpIfIndex	1.3.6.1.4.1.171.10.97.2.2.1.1.1.1	IfIndex	read-only	The interface on which this entry's equivalence is effective. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex.
PHY myArpPhysAddress	1.3.6.1.4.1.171.10.97.2.2.1.1.1.2	PhysAddress	read-write	The media-dependent `physical' address.
IP myArpNetAddress	1.3.6.1.4.1.171.10.97.2.2.1.1.1.3	IpAddress	read-only	The IpAddress corresponding to the media- dependent `physical' address.
I32 myArpRemainAge	1.3.6.1.4.1.171.10.97.2.2.1.1.1.4	Integer32	read-only	The remain age of this ARP entry, in units of minute
INT myArpType	1.3.6.1.4.1.171.10.97.2.2.1.1.1.5	INTEGER	read-write	The ARP type of the entry.
INT myArpEntryType	1.3.6.1.4.1.171.10.97.2.2.1.1.1.6	INTEGER	read-only	The entry type.
ROW myArpStatus	1.3.6.1.4.1.171.10.97.2.2.1.1.1.7	RowStatus	read-create	entry status of this entry. and the means in this enviraments can reffer to the text-convention definition of the RowStatus.
myArpIfTable	1.3.6.1.4.1.171.10.97.2.2.1.2		not-accessible	Interface configure for ARP(Address Resolution Protocol).
myArpIfEntry	1.3.6.1.4.1.171.10.97.2.2.1.2.1		not-accessible	Each entry contains a interface configure for ARP
IFI myArpIfIfIndex	1.3.6.1.4.1.171.10.97.2.2.1.2.1.1	IfIndex	read-only	The interface on which this entry's equivalence is effective. The interface identified by a particular value of this index is the same interface as identified by the same value of ifIndex.
INT myArpIfCacheTimeOut	1.3.6.1.4.1.171.10.97.2.2.1.2.1.2	INTEGER	read-write	Aging time in units of second of Arp table
C32 myArpCurrentTotalNumber	1.3.6.1.4.1.171.10.97.2.2.1.3	Counter32	read-only	Number of current total arp entrys this system have
C32 myArpCurrentUnresolveNumber	1.3.6.1.4.1.171.10.97.2.2.1.4	Counter32	read-only	Number of current unresolve arp entrys this system have
myArpMIBConformance	1.3.6.1.4.1.171.10.97.2.2.2
myArpMIBCompliances	1.3.6.1.4.1.171.10.97.2.2.2.1
myArpMIBCompliance	1.3.6.1.4.1.171.10.97.2.2.2.1.1			The compliance statement for entities which implement the My Arp MIB
myArpMIBGroups	1.3.6.1.4.1.171.10.97.2.2.2.2
myArpMIBGroup	1.3.6.1.4.1.171.10.97.2.2.2.2.1			A collection of objects providing arp management and opertion to a My agent.

RFC description

Custom or vendor-specific MIB extending standard ARP (Address Resolution Protocol) objects with additional monitoring parameters.

Start monitoring D-Link managed switch (ARP table/proxy ARP) 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 MY-ARP-MIB

What Is MY-ARP-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description