HM2-INDUSTRIAL-PROTOCOLS-MIB :: hm2EtherNetIPLastConflictDetectedACDActivity

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsHM2-INDUSTRIAL-PROTOCOLS-MIBhm2EtherNetIPLastConflictDetectedACDActivity

hm2EtherNetIPLastConflictDetectedACDActivity

Module: HM2-INDUSTRIAL-PROTOCOLS-MIB

OID (symbolic): HM2-INDUSTRIAL-PROTOCOLS-MIB::hm2EtherNetIPLastConflictDetectedACDActivity

OID (numeric): 1.3.6.1.4.1.248.11.101.1.3.3.5

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-write

Description: The ARP Response PDU (a copy of the ARP message that caused the address conflict) in binary format. Can only be written to a value of zero.

What is hm2EtherNetIPLastConflictDetectedACDActivity?

Holds a 28-byte copy of the ARP response that triggered the most recent IP address-conflict detection (ACD) event on the device; it can only be cleared by writing all zeros, and an admin reads it to investigate which host was contending for this device's IP address.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.248.11.101.1.3.3.5
snmpwalk -v2c -c public <target> HM2-INDUSTRIAL-PROTOCOLS-MIB::hm2EtherNetIPLastConflictDetectedACDActivity

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.248.11.101.1.3.3.5.1
snmpget -v2c -c public <target> HM2-INDUSTRIAL-PROTOCOLS-MIB::hm2EtherNetIPLastConflictDetectedACDActivity.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.248.11.101.1.3.3.5.1 s <value>

Start monitoring Hirschmann HiOS industrial Ethernet switch (IEC 61850 MMS server) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the HM2-INDUSTRIAL-PROTOCOLS-MIB::hm2EtherNetIPLastConflictDetectedACDActivity OID value, configure state conditions and alerts, and monitor any Hirschmann HiOS industrial Ethernet switch (IEC 61850 MMS server) from a single console.

OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.248hirschmannHM2-TC-MIB
1.3.6.1.4.1.248.11hm2ConfigurationMibsHM2-TC-MIB
Numeric OIDNameModule
1.3.6.1.4.1.248.11.101hm2IndustrialProtocolsMibHM2-INDUSTRIAL-PROTOCOLS-MIB
1.3.6.1.4.1.248.11.101.1hm2IndustrialProtocolsMibObjectsHM2-INDUSTRIAL-PROTOCOLS-MIB
1.3.6.1.4.1.248.11.101.1.3hm2EthernetIPGroupHM2-INDUSTRIAL-PROTOCOLS-MIB
1.3.6.1.4.1.248.11.101.1.3.3hm2EthernetIPTCPIPObjectGroupHM2-INDUSTRIAL-PROTOCOLS-MIB
1.3.6.1.4.1.248.11.101.1.3.3.5hm2EtherNetIPLastConflictDetectedACDActivityHM2-INDUSTRIAL-PROTOCOLS-MIB