All MIBs › CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB › ctAgentDaiVlanIpValidFailures
ctAgentDaiVlanIpValidFailures
Module: CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB
OID (symbolic): CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanIpValidFailures
OID (numeric): 1.3.6.1.4.1.52.4.2.36.1.1.6.1.10
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: Number of ARP packets that were dropped by DAI as the sender IP address in ARP packet or target IP address in ARP reply packet is invalid. Invalid addresses include 0.0.0.0, 255.255.255.255, IP multicast addresses, class E addresses (240.0.0.0/4), loopback addresses (127.0.0.0/8).
What is ctAgentDaiVlanIpValidFailures?
This read-only Counter32 tracks ARP packets dropped because they carried invalid sender or target IP addresses, such as 0.0.0.0, broadcast, multicast, class E, or loopback addresses. An administrator monitors this to catch malformed or malicious ARP traffic using implausible addresses. For example, a sustained ctAgentDaiVlanIpValidFailures count could indicate a device or attack tool generating malformed ARP packets rather than a simple misconfiguration.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.2.36.1.1.6.1.10 snmpwalk -v2c -c public <target> CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanIpValidFailures
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.2.36.1.1.6.1.10.1 snmpget -v2c -c public <target> CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB::ctAgentDaiVlanIpValidFailures.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::ctAgentDaiVlanIpValidFailures 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 |
| 1.3.6.1.4.1.52.4.2.36.1.1.6.1.10 | ctAgentDaiVlanIpValidFailures | CT-FASTPATH-DYNAMIC-ARP-INSPECTION-MIB |