All MIBs › A3COM-HUAWEI-IP-MIB › ipBadHeadLens
ipBadHeadLens
Module: A3COM-HUAWEI-IP-MIB
OID (symbolic): A3COM-HUAWEI-IP-MIB::ipBadHeadLens
OID (numeric): 1.3.6.1.4.1.43.45.1.1.3.1.6
Node type: OBJECT-TYPE
Type: Counter
Access: read-only
Description: The number of packets with invalid IP header length.
What is ipBadHeadLens?
This counter tracks packets with invalid IP header length fields (typically malformed option processing). Detection helps identify crafted attack packets or devices generating corrupted IP headers. Seeing even a few of these counters increment suggests either security probing or a critical error in how a sender constructs packets.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.43.45.1.1.3.1.6 snmpwalk -v2c -c public <target> A3COM-HUAWEI-IP-MIB::ipBadHeadLens
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.43.45.1.1.3.1.6.1 snmpget -v2c -c public <target> A3COM-HUAWEI-IP-MIB::ipBadHeadLens.1
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OID Breakdown
Upper-level ancestors (11 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 |
| 1.3.6.1.4.1.43 | a3Com | A3COM-AUDL-R1-MIB |
| 1.3.6.1.4.1.43.45 | jv_mib | A3COM-HUAWEI-OID-MIB |
| 1.3.6.1.4.1.43.45.1 | huawei | A3COM-HUAWEI-OID-MIB |
| 1.3.6.1.4.1.43.45.1.1 | hwLocal | A3COM-HUAWEI-OID-MIB |
| 1.3.6.1.4.1.43.45.1.1.3 | hwInternetProtocol | A3COM-HUAWEI-OID-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.43.45.1.1.3.1 | rIp | A3COM-HUAWEI-IP-MIB |
| 1.3.6.1.4.1.43.45.1.1.3.1.6 | ipBadHeadLens | A3COM-HUAWEI-IP-MIB |