AT-DOS-MIB
AI MIB Summary
The AT-DOS-MIB facilitates the monitoring and management of Denial of Service (DoS) defense mechanisms on network devices by exposing metrics related to attack traffic volumes, active mitigation sessions, and the operational status of DoS protection policies.
The Denial of Service defense MIB for managing defenses against denial of service attacks.
Main OID:
dosDefense.1.3.6.1.4.1.207.8.4.4.4.143
21
Objects
Active
Status
3
Dependencies
Imported Objects
Objects
21 total| Object Name |
|---|
dosDefenseThe Denial of Service defense MIB for managing defenses against denial of service attacks. MODULE-IDENTITY .1.3.6.1.4.1.207.8.4.4.4.143 |
dosDefenseStatusWhether or not the DoS defense module is currently enabledro Enumeration .1.3.6.1.4.1.207.8.4.4.4.143.1 |
dosDefenseDebugModeThe debugging options enabled for DoS defense. Output goes to the asynchronous port or telnet session that enabled debugging. The bit 'None(0)' indicates that no debugging is enabled. The bit 'Attack(1)' indicates that information about the start and finish of attacks is displayed. The bit 'Packet(2)' indicates that a hexadecimal dump of the IP header of all suspect packets is displayed. The bit 'Diagnostics(3)' indicates that additional debugging and diagnostic messages may be displayed.ro Bits .1.3.6.1.4.1.207.8.4.4.4.143.2 |
dosDefenseNumDebugPacketsWhen packet debugging is enabled, this is the maximum number of packets that will be displayed before debugging is automatically disabled. A value of 0 means no limit (i.e. continuous).ro Enumeration .1.3.6.1.4.1.207.8.4.4.4.143.3 |
dosDefenseTableA table of configuration and status information for each defense configured on a port. SEQUENCE OF DosDefenseEntry .1.3.6.1.4.1.207.8.4.4.4.143.4 |
dosDefenseEntryThe configuration and status of the defense against a single attack type on a single port. DosDefenseEntry .1.3.6.1.4.1.207.8.4.4.4.143.4.1 |
dosDefensePortThe port index on which the defense is configured.ro INTEGER .1.3.6.1.4.1.207.8.4.4.4.143.4.1.1 |
dosDefenseAttackTypeThe type of attack this defense protects against.ro Enumeration .1.3.6.1.4.1.207.8.4.4.4.143.4.1.2 |
dosDefenseDefenseStatusWhether or not this attack is currently enabled on this port.ro Enumeration .1.3.6.1.4.1.207.8.4.4.4.143.4.1.3 |
dosDefenseThresholdThe threshold, in packets per second, at which an attack is deemed to be in progress. If dosDefenseAttackType is SYNFlood(1), a value of 0 means no threshold has been set and the default thresholds apply. An attack is suspected when the SYN:ACK ratio exceeds 2:1 above 20 packets per second, in any one-second interval. An attack is in progress when the SYN:ACK ratio exceeds 3:1 above 20 packets per second, in any one-second interval, or an attack is suspected more than once within a dosDefenseBlockTime interval. If dosDefenseAttackType is Smurf(3), a value of 0 means the filter will block all broadcast ICMP requests. A threshold greater than 0 will block after that number of ICMP requests are received in a 1 second interval.ro INTEGER .1.3.6.1.4.1.207.8.4.4.4.143.4.1.4 |
dosDefenseBlockTimeThe time, in seconds, that must elapse after the last malicious packet is seen, before an attack is deemed to have finished and the port stops blocking traffic. If dosDefenseAttackType is SYNFlood(1), it is also the maximum time an attack is suspected before it returns to a state of no attack.ro INTEGER .1.3.6.1.4.1.207.8.4.4.4.143.4.1.5 |
dosDefenseMirroringWhether or not suspect traffic received by this port is copied to the pre-configured mirror port.ro TruthValue (SNMPv2-TC) .1.3.6.1.4.1.207.8.4.4.4.143.4.1.6 |
dosDefensePortTypeIf dosDefenseAttackType is Land(6), the type of port. For other values of dosDefenseAttackType, this object returns notapplicable(0). A device connected to a client(1) port should have an IP address in the local subnet, and be the original source or ultimate destination of packets transiting the network. Incoming packets should have a source address in the local subnet. Outgoing packets should have a destination address in the local subnet. A gateway(2) port is connected directly to a gateway device attached to external networks. Apart from a small number of packets from the gateway device itself, all packets arriving at the gateway port should be from other subnets. Incoming packets should have a source address not in the local subnet. Outgoing packets should have a destination address not in the local subnet.ro Enumeration .1.3.6.1.4.1.207.8.4.4.4.143.4.1.7 |
dosDefenseSubnetAddressIf dosDefenseAttackType is Smurf(3), the subnet address is used to determine the local broadcast address. If dosDefenseAttackType is Land(6), the subnet address used to determine which addresses are local or remote. For other values of dosDefenseAttackType, this object returns 0.0.0.0.ro IpAddress .1.3.6.1.4.1.207.8.4.4.4.143.4.1.8 |
dosDefenseSubnetMaskIf 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.ro IpAddress .1.3.6.1.4.1.207.8.4.4.4.143.4.1.9 |
dosDefenseAttackStateWhether or not an attack is currently in progress on the port. None(0) means no attack is in progress. If dosDefenseAttackType is SYNFlood(1), Suspected(1) means a SYN Flood attack is suspected. A threshold has not been set, and the default threshold of a SYN:ACK ratio of 2:1 above 20 packets per second has been reached. If dosDefenseAttackType is PingOfDeath(2), Teardrop(5) or Land(6), Suspected means that some suspect packets have been received but have not yet been analysed to determine if an attack exists. InProgress(2) means an attack is in progress.ro Enumeration .1.3.6.1.4.1.207.8.4.4.4.143.4.1.10 |
dosDefenseAttackCountThe number of attacks (attacked seconds) detected on this port.ro Counter32 .1.3.6.1.4.1.207.8.4.4.4.143.4.1.11 |
dosDefenseRemainingBlockTimeThe time remainingro INTEGER .1.3.6.1.4.1.207.8.4.4.4.143.4.1.12 |
dosDefenseTraps OBJECT IDENTIFIER .1.3.6.1.4.1.207.8.4.4.4.143.5 |
dosDefenseAttackStartTriggered when an attack is detected on a port. NOTIFICATION-TYPE .1.3.6.1.4.1.207.8.4.4.4.143.5.1 |
dosDefenseAttackEndTriggered when an attack is finished on a port. This occurs after an attack packet has not been seen for a complete BlockTime period. NOTIFICATION-TYPE .1.3.6.1.4.1.207.8.4.4.4.143.5.2 |