TCP-MIB :: tcpListenerTable

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsTCP-MIBtcpListenerTable

tcpListenerTable

Module: TCP-MIB

OID (symbolic): TCP-MIB::tcpListenerTable

OID (numeric): 1.3.6.1.2.1.6.20

Node type: OBJECT-TYPE

Access: not-accessible

Description: A table containing information about TCP listeners. A listening application can be represented in three possible ways:

1. An application that is willing to accept both IPv4 and IPv6 datagrams is represented by

a tcpListenerLocalAddressType of unknown (0) and a tcpListenerLocalAddress of ''h (a zero-length octet-string).

2. An application that is willing to accept only IPv4 or IPv6 datagrams is represented by a tcpListenerLocalAddressType of the appropriate address type and a tcpListenerLocalAddress of '0.0.0.0' or '::' respectively.

3. An application that is listening for data destined only to a specific IP address, but from any remote system, is represented by a tcpListenerLocalAddressType of an appropriate address type, with tcpListenerLocalAddress as the specific local address.

NOTE: The address type in this table represents the address type used for the communication, irrespective of the higher-layer abstraction. For example, an application using IPv6 'sockets' to communicate via IPv4 between ::ffff:10.0.0.1 and ::ffff:10.0.0.2 would use InetAddressType ipv4(1)).

OID Breakdown

Upper-level ancestors (7 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAXON-MIB
1.3.6.1.2.1mib_2AXON-MIB
1.3.6.1.2.1.6tcpCHECKPOINT-MIB-2
Numeric OIDNameModule
1.3.6.1.2.1.6.20tcpListenerTableTCP-MIB