All MIBs › CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB › ctAgentDaiVlanSrcMacFailures
ctAgentDaiVlanSrcMacFailures
Module: CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB
OID (symbolic): CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanSrcMacFailures
OID (numeric): 1.3.6.1.4.1.52.4.2.36.1.1.6.1.8
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: Number of ARP packets that were dropped by DAI as the sender mac address in ARP packet didn't match the source mac in ethernet header.
What is ctAgentDaiVlanSrcMacFailures?
This read-only Counter32 tracks ARP packets dropped because the sender MAC address inside the ARP packet didn't match the source MAC address in the Ethernet header. An administrator monitors this as a specific indicator of ARP packets attempting to spoof their sender identity. For example, a rising ctAgentDaiVlanSrcMacFailures count would point the admin toward investigating a specific device or port for potential ARP spoofing tools.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.2.36.1.1.6.1.8 snmpwalk -v2c -c public <target> CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanSrcMacFailures
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.2.36.1.1.6.1.8.1 snmpget -v2c -c public <target> CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanSrcMacFailures.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::ctAgentDaiVlanSrcMacFailures 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 |
| 1.3.6.1.4.1.52.4.2.36.1.1.6.1.8 | ctAgentDaiVlanSrcMacFailures | CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB |