All MIBs › EIP-DNSBLAST-MIB
Organization: EfficientIP
Last Updated: 2015-11-30
Category: Domain: Security
Description: EIP DNS blast MIB for monitoring DNS amplification and DDoS attack metrics on enterprise internet protection platforms.
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What Is EIP-DNSBLAST-MIB?
EIP-DNSBLAST-MIB is an enterprise MIB for EIP's DNSGUARDIAN platform, a DNS security appliance used to defend against DNS amplification attacks, cache poisoning, and other DNS-based DDoS traffic. It exposes per-view DNS statistics -- cache hit/miss counts, cache size, and the volume of DNS packets and bytes sent and received -- organized in the eipDNSGUARDIANViewStatTable, giving a real-time performance and traffic profile of the DNS resolver. This is fundamentally a software/service-health MIB: a sudden spike in received DNS packets/bytes paired with a rise in cache misses is a strong signal of an active DNS flood or amplification attack against the protected view, while cache-hit ratio trends indicate normal resolver efficiency. It appears to be a standalone product MIB with no explicit dependency on other MIBs, defining its own object tree under products/eipDNSGUARDIAN. It is deployed on EIP DNSGUARDIAN appliances sitting in front of authoritative or recursive DNS infrastructure at enterprises and service providers. Engineers can download the EIP-DNSBLAST-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in EIP-DNSBLAST-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
- EIP DNSGUARDIAN DNS security appliances
Monitoring Examples
An operator would poll eipDNSGUARDIANViewStatTable, indexed by eipDNSGUARDIANViewStatViewID and eipDNSGUARDIANViewStatViewName, watching eipDNSGUARDIANViewStatRecvDNSPacket and eipDNSGUARDIANViewStatRecvDNSByte for sudden spikes. A simultaneous jump in eipDNSGUARDIANViewStatCacheMiss and eipDNSGUARDIANViewStatCacheMissExist alongside falling eipDNSGUARDIANViewStatCacheHit would indicate an ongoing DNS amplification or cache-busting attack against that view. Tracking eipDNSGUARDIANViewStatCacheSize over time also helps confirm the cache isn't being exhausted under load.
What Can Be Monitored
- DNS cache hit/miss counts
- DNS cache size
- DNS packets sent/received
- DNS bytes sent/received
- per-view DNS traffic statistics
Imported Objects
From SNMPv2-SMI
| Counter64 | |
| Gauge32 | |
| Integer32 | |
| MODULE-IDENTITY | |
| OBJECT-TYPE | |
| enterprises |
From SNMPv2-TC
| DisplayString | |
| TEXTUAL-CONVENTION |
How to Use in IPNetwork Monitor
Example using eipDNSGUARDIANStatCacheHit OID:
OIDs
RFC description
DNSGUARDIAN statistics MIB providing DNS view statistics, cache hit/miss metrics, and DNS transaction data.
Start monitoring EfficientIP DNSGUARDIAN DNS security appliance with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.