ACMIB :: arp1PhysicalAddr

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsACMIBarp1PhysicalAddr

arp1PhysicalAddr

Module: ACMIB

OID (symbolic): ACMIB::arp1PhysicalAddr

OID (numeric): 1.3.6.1.4.1.1751.2.18.20.1.1.4

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-only

Description: Entry physical address.

What is arp1PhysicalAddr?

This OID stores the 6-byte MAC address (physical address) of an ARP table entry on the first port. Network engineers examine this when troubleshooting layer 2 communication problems or verifying that devices are properly registered on the network. A value of '00:1a:2b:3c:4d:5e' represents the MAC address of a device connected to the switch's first interface.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.20.1.1.4
snmpwalk -v2c -c public <target> ACMIB::arp1PhysicalAddr

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.20.1.1.4.1
snmpget -v2c -c public <target> ACMIB::arp1PhysicalAddr.1

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OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
Numeric OIDNameModule
1.3.6.1.4.1.1751lucentACMIB
1.3.6.1.4.1.1751.2mibsACMIB
1.3.6.1.4.1.1751.2.18acMIBACMIB
1.3.6.1.4.1.1751.2.18.20ethernetConfigACMIB
1.3.6.1.4.1.1751.2.18.20.1arp1TableACMIB
1.3.6.1.4.1.1751.2.18.20.1.1arp1EntryACMIB
1.3.6.1.4.1.1751.2.18.20.1.1.4arp1PhysicalAddrACMIB