All MIBs › UDP-MIB › udpNoPorts
udpNoPorts
Module: UDP-MIB
OID (symbolic): UDP-MIB::udpNoPorts
OID (numeric): 1.3.6.1.2.1.7.2
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The total number of received UDP datagrams for which there was no application at the destination port.
Discontinuities in the value of this counter can occur at re-initialization of the management system, and at other times as indicated by discontinuities in the value of sysUpTime.
What is udpNoPorts?
This counter tracks the total number of UDP datagrams received by a system for which no application was listening on the destination port. These are essentially discarded packets because the target port had no active service bound to receive them. An operator monitors this metric to detect if legitimate services are missing or misconfigured, or if the system is receiving port scans or unwanted traffic.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.7.2 snmpwalk -v2c -c public <target> UDP-MIB::udpNoPorts
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.7.2.1 snmpget -v2c -c public <target> UDP-MIB::udpNoPorts.1
Start monitoring vendor-neutral, standards-based MIB, any host/server/network device running a UDP/IP stack (datagram counter/listener-endpoint status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the UDP-MIB::udpNoPorts OID value, configure state conditions and alerts, and monitor any vendor-neutral, standards-based MIB, any host/server/network device running a UDP/IP stack (datagram counter/listener-endpoint status) from a single console.
OID Breakdown
Upper-level ancestors (7 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 |
| 1.3.6.1.2 | mgmt | AXON-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| 1.3.6.1.2.1.7 | udp | CHECKPOINT-MIB-2 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.7.2 | udpNoPorts | UDP-MIB |