AT-DOS-MIB :: dosDefenseSubnetMask

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › AT-DOS-MIB › dosDefenseSubnetMask

dosDefenseSubnetMask

Module: AT-DOS-MIB

OID (symbolic): AT-DOS-MIB::dosDefenseSubnetMask

OID (numeric): 1.3.6.1.4.1.207.8.4.4.4.143.4.1.9

Node type: OBJECT-TYPE

Type: IpAddress

Access: read-only

Description: If dosDefenseAttackType is Smurf(3), the subnet mask is used to determine the local broadcast address.

If dosDefenseAttackType is Land(6), the subnet mask used to determine which addresses are local or remote.

For other values of dosDefenseAttackType, this object returns 0.0.0.0.

What is dosDefenseSubnetMask?

This read-only IP address defines the subnet size when Smurf or Land attack defense is active on this port. It masks the subnet address to determine which IPs are local versus remote. A value of 255.255.255.0 indicates a /24 network; 0.0.0.0 means this defense type is not configured.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.207.8.4.4.4.143.4.1.9
snmpwalk -v2c -c public <target> AT-DOS-MIB::dosDefenseSubnetMask

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.207.8.4.4.4.143.4.1.9.1
snmpget -v2c -c public <target> AT-DOS-MIB::dosDefenseSubnetMask.1

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OID Breakdown

Upper-level ancestors (11 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.207alliedTelesynAT-RG600-MIB
1.3.6.1.4.1.207.8mibObjectAT-RG600-MIB
1.3.6.1.4.1.207.8.4brouterMibAT-SMI-MIB
1.3.6.1.4.1.207.8.4.4atRouterAT-SMI-MIB
1.3.6.1.4.1.207.8.4.4.4modulesAT-SMI-MIB
Numeric OIDNameModule
1.3.6.1.4.1.207.8.4.4.4.143dosDefenseAT-DOS-MIB
1.3.6.1.4.1.207.8.4.4.4.143.4dosDefenseTableAT-DOS-MIB
1.3.6.1.4.1.207.8.4.4.4.143.4.1dosDefenseEntryAT-DOS-MIB
1.3.6.1.4.1.207.8.4.4.4.143.4.1.9dosDefenseSubnetMaskAT-DOS-MIB