All MIBs › CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB › ctAgentDaiVlanPktsDropped
ctAgentDaiVlanPktsDropped
Module: CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB
OID (symbolic): CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanPktsDropped
OID (numeric): 1.3.6.1.4.1.52.4.2.36.1.1.6.1.3
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: Number of invalid ARP packets dropped by DAI.
What is ctAgentDaiVlanPktsDropped?
This read-only Counter32 tracks the number of invalid ARP packets that Dynamic ARP Inspection has dropped on a VLAN. An administrator monitors this as the primary indicator of ARP spoofing attempts or misconfigured devices being blocked. For example, a sudden spike in ctAgentDaiVlanPktsDropped on a specific VLAN would prompt the admin to check the more detailed drop-reason counters, like DhcpDrops or AclDrops, to pinpoint the cause.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.2.36.1.1.6.1.3 snmpwalk -v2c -c public <target> CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanPktsDropped
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.2.36.1.1.6.1.3.1 snmpget -v2c -c public <target> CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanPktsDropped.1
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> ctAgentDaiVlanPktsDropped.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::ctAgentDaiVlanPktsDropped 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 |
| 1.3.6.1.4.1.52.4.2.36.1.1.6.1.3 | ctAgentDaiVlanPktsDropped | CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB |