All MIBs › HM2-DOS-MITIGATION-MIB › hm2DosMitigationLandAttack
hm2DosMitigationLandAttack
Module: HM2-DOS-MITIGATION-MIB
OID (symbolic): HM2-DOS-MITIGATION-MIB::hm2DosMitigationLandAttack
OID (numeric): 1.3.6.1.4.1.248.11.82.1.1.1.13
Node type: OBJECT-TYPE
Type: HmEnabledStatus
Access: read-write
Description: When enabled all IP frames are checked for equality of src and dst IP address (known as land attack). Packets that contain such a combination are silently discarded when enabled.
What is hm2DosMitigationLandAttack?
Enables detection and silent discard of IP frames where the source and destination IP addresses are identical, the signature of a classic LAND (Local Area Network Denial) attack that can crash or hang vulnerable stacks. Disabled by default, an admin enables this to close off a decades-old but still-effective DoS vector.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.248.11.82.1.1.1.13 snmpwalk -v2c -c public <target> HM2-DOS-MITIGATION-MIB::hm2DosMitigationLandAttack
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.248.11.82.1.1.1.13.1 snmpget -v2c -c public <target> HM2-DOS-MITIGATION-MIB::hm2DosMitigationLandAttack.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.248.11.82.1.1.1.13.1 s <value>
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> hm2DosMitigationLandAttack.1
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OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.248 | hirschmann | HIRSCHMANN-GENERIC-ERROR-MIB |
| 1.3.6.1.4.1.248.11 | hm2ConfigurationMibs | HM2-TC-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.248.11.82 | hm2DosMitigationMib | HM2-DOS-MITIGATION-MIB |
| 1.3.6.1.4.1.248.11.82.1 | hm2DosMitigationObjects | HM2-DOS-MITIGATION-MIB |
| 1.3.6.1.4.1.248.11.82.1.1 | hm2DosMitigationGeneralSettings | HM2-DOS-MITIGATION-MIB |
| 1.3.6.1.4.1.248.11.82.1.1.1 | hm2DosMitigationTcpHdrChecks | HM2-DOS-MITIGATION-MIB |
| 1.3.6.1.4.1.248.11.82.1.1.1.13 | hm2DosMitigationLandAttack | HM2-DOS-MITIGATION-MIB |