All MIBs › CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB › ctAgentDaiVlanDstMacFailures
ctAgentDaiVlanDstMacFailures
Module: CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB
OID (symbolic): CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanDstMacFailures
OID (numeric): 1.3.6.1.4.1.52.4.2.36.1.1.6.1.9
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: Number of ARP packets that were dropped by DAI as the target mac address in ARP reply packet didn't match the destination mac in ethernet header.
What is ctAgentDaiVlanDstMacFailures?
This read-only Counter32 tracks ARP reply packets dropped because the target MAC address inside the packet didn't match the destination MAC address in the Ethernet header. An administrator monitors this as a specific indicator of spoofed ARP replies attempting to misdirect traffic. For example, a rising ctAgentDaiVlanDstMacFailures count on a VLAN could indicate an active man-in-the-middle attack attempt being blocked by DAI.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.2.36.1.1.6.1.9 snmpwalk -v2c -c public <target> CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanDstMacFailures
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.2.36.1.1.6.1.9.1 snmpget -v2c -c public <target> CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanDstMacFailures.1
Start monitoring Enterasys/Cabletron FastPath switch (Dynamic ARP Inspection) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanDstMacFailures OID value, configure state conditions and alerts, and monitor any Enterasys/Cabletron FastPath switch (Dynamic ARP Inspection) from a single console.
OID Breakdown
Upper-level ancestors (10 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.52 | cabletron | Cabletron-MIB |
| 1.3.6.1.4.1.52.4 | mibs | CTRON-AP3000-MIB |
| 1.3.6.1.4.1.52.4.2 | ctronExp | CTRON-MIB-NAMES |
| 1.3.6.1.4.1.52.4.2.36 | ctDynamicArpInspectionExpMib | CTRON-MIB-NAMES |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.52.4.2.36.1 | ctFastPathDynamicArpInspectionMIB | CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB |
| 1.3.6.1.4.1.52.4.2.36.1.1 | ctAgentDaiConfigGroup | CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB |
| 1.3.6.1.4.1.52.4.2.36.1.1.6 | ctAgentDaiVlanStatsTable | CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB |
| 1.3.6.1.4.1.52.4.2.36.1.1.6.1 | ctAgentDaiVlanStatsEntry | CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB |
| 1.3.6.1.4.1.52.4.2.36.1.1.6.1.9 | ctAgentDaiVlanDstMacFailures | CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB |