All MIBs › ZTE-AN-SECURITY-CPUDEFEND-MIB › zxAnSecCpuAclIsnErrorDropTcpPkts
zxAnSecCpuAclIsnErrorDropTcpPkts
Module: ZTE-AN-SECURITY-CPUDEFEND-MIB
OID (symbolic): ZTE-AN-SECURITY-CPUDEFEND-MIB::zxAnSecCpuAclIsnErrorDropTcpPkts
OID (numeric): 1.3.6.1.4.1.3902.1082.70.25.2.4.3.1.4
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The number of dropped TCP packets with ISN error.
What is zxAnSecCpuAclIsnErrorDropTcpPkts?
The number of TCP packets dropped by this ACL rule due to an Initial Sequence Number (ISN) error, typically indicating a spoofed or malformed TCP segment. A nonzero count is a sign of suspicious TCP traffic being filtered out before it reaches the CPU.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.3902.1082.70.25.2.4.3.1.4 snmpwalk -v2c -c public <target> ZTE-AN-SECURITY-CPUDEFEND-MIB::zxAnSecCpuAclIsnErrorDropTcpPkts
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.3902.1082.70.25.2.4.3.1.4.1 snmpget -v2c -c public <target> ZTE-AN-SECURITY-CPUDEFEND-MIB::zxAnSecCpuAclIsnErrorDropTcpPkts.1
Start monitoring ZTE access node (DSLAM/OLT/Ethernet access switch) (CPU-protection rate-limit/drop-counter status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ZTE-AN-SECURITY-CPUDEFEND-MIB::zxAnSecCpuAclIsnErrorDropTcpPkts OID value, configure state conditions and alerts, and monitor any ZTE access node (DSLAM/OLT/Ethernet access switch) (CPU-protection rate-limit/drop-counter status) from a single console.
OID Breakdown
Upper-level ancestors (9 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 |
| 1.3.6.1.4.1.3902 | zte | DPI-MIB |
| 1.3.6.1.4.1.3902.1082 | zxAccessNode | ZTE-AN-SMI |
| 1.3.6.1.4.1.3902.1082.70 | zxAnServiceSecurity | ZTE-AN-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.3902.1082.70.25 | zxAnSecurityCpuDefendMib | ZTE-AN-SECURITY-CPUDEFEND-MIB |
| 1.3.6.1.4.1.3902.1082.70.25.2 | zxAnSecCpuDefendObjects | ZTE-AN-SECURITY-CPUDEFEND-MIB |
| 1.3.6.1.4.1.3902.1082.70.25.2.4 | zxAnSecCpuAclObjects | ZTE-AN-SECURITY-CPUDEFEND-MIB |
| 1.3.6.1.4.1.3902.1082.70.25.2.4.3 | zxAnSecCpuAclTcpPktStatsTable | ZTE-AN-SECURITY-CPUDEFEND-MIB |
| 1.3.6.1.4.1.3902.1082.70.25.2.4.3.1 | zxAnSecCpuAclTcpPktStatsEntry | ZTE-AN-SECURITY-CPUDEFEND-MIB |
| 1.3.6.1.4.1.3902.1082.70.25.2.4.3.1.4 | zxAnSecCpuAclIsnErrorDropTcpPkts | ZTE-AN-SECURITY-CPUDEFEND-MIB |