Microsoft-Windows-Kernel-Network

22 events across 1 channel

Event ID	Title	Channel
10	TCPv4: size bytes transmitted from saddr:sport to daddr:dport.	Analytic
11	TCPv4: size bytes received from saddr:sport to daddr:dport.	Analytic
12	TCPv4: Connection attempted between saddr:sport and daddr:dport.	Analytic
13	TCPv4: Connection closed between saddr:sport and daddr:dport.	Analytic
14	TCPv4: size bytes retransmitted from saddr:sport to daddr:dport.	Analytic
15	TCPv4: Connection established between saddr:sport and daddr:dport.	Analytic
16	TCPv4: Reconnect attempt between saddr:sport and daddr:dport.	Analytic
17	TCPv4: Connection attempt failed with error code FailureCode.	Analytic
18	TCPv4: size bytes copied in protocol on behalf of user for connection between …	Analytic
26	TCPv6: size bytes transmitted from saddr:sport to daddr:dport.	Analytic
27	TCPv6: size bytes received from saddr:sport to daddr:dport.	Analytic
28	TCPv6: Connection attempted between saddr:sport and daddr:dport.	Analytic
29	TCPv6: Connection closed between saddr:sport and daddr:dport.	Analytic
30	TCPv6: size bytes retransmitted from saddr:sport to daddr:dport.	Analytic
31	TCPv6: Connection established between saddr:sport and daddr:dport.	Analytic
32	TCPv6: Reconnect attempt between saddr:sport and daddr:dport.	Analytic
34	TCPv6: size bytes copied in protocol on behalf of user for connection between …	Analytic
42	UDPv4: size bytes transmitted from saddr:sport to daddr:dport.	Analytic
43	UDPv4: size bytes received from saddr:sport to daddr:dport.	Analytic
49	UDPv4: Connection attempt failed with error code FailureCode.	Analytic
58	UDPv6: size bytes transmitted from saddr:sport to daddr:dport.	Analytic
59	UDPv6: size bytes received from saddr:sport to daddr:dport.	Analytic

Event ID 10 — TCPv4: size bytes transmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datasent.

Description

TCPv4: size bytes transmitted from saddr:sport to daddr:dport.

Message #

TCPv4: %2 bytes transmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` UInt32	—
`saddr` UInt32	—
`dport` UInt16	—
`sport` UInt16	—
`startime` UInt32	—
`endtime` UInt32	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "10",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "10",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:36.423105900+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4168",
      "thread_id": "6844"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    4168",
    "size": "    1007",
    "daddr": "10.2.20.41",
    "saddr": "10.2.10.21",
    "dport": "5044",
    "sport": "50993",
    "startime": " 5775532",
    "endtime": " 5775532",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 11 — TCPv4: size bytes received from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datareceived.

Description

TCPv4: size bytes received from saddr:sport to daddr:dport.

Message #

TCPv4: %2 bytes received from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` UInt32	—
`saddr` UInt32	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "11",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "11",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:36.423344200+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4168",
      "thread_id": "6844"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    4168",
    "size": "       6",
    "daddr": "10.2.20.41",
    "saddr": "10.2.10.21",
    "dport": "5044",
    "sport": "50993",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 12 — TCPv4: Connection attempted between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionattempted.

Description

TCPv4: Connection attempted between saddr:sport and daddr:dport.

Message #

TCPv4: Connection attempted between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` UInt32	—
`saddr` UInt32	—
`dport` UInt16	—
`sport` UInt16	—
`mss` UInt16	—
`sackopt` UInt16	—
`tsopt` UInt16	—
`wsopt` UInt16	—
`rcvwin` UInt32	—
`rcvwinscale` UInt16	—
`sndwinscale` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "12",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "12",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:40.246626600+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "0",
      "thread_id": "0"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    3688",
    "size": "       0",
    "daddr": "13.89.179.13",
    "saddr": "10.2.10.21",
    "dport": "443",
    "sport": "52999",
    "mss": "1440",
    "sackopt": "1",
    "tsopt": "0",
    "wsopt": "1",
    "rcvwin": "  263520",
    "rcvwinscale": "8",
    "sndwinscale": "8",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 13 — TCPv4: Connection closed between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Disconnectissued.

Description

TCPv4: Connection closed between saddr:sport and daddr:dport.

Message #

TCPv4: Connection closed between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` UInt32	—
`saddr` UInt32	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "13",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "13",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:38.733385600+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4",
      "thread_id": "7444"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "       4",
    "size": "       0",
    "daddr": "10.2.10.11",
    "saddr": "10.2.10.21",
    "dport": "51201",
    "sport": "5985",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 14 — TCPv4: size bytes retransmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Dataretransmitted.

Description

TCPv4: size bytes retransmitted from saddr:sport to daddr:dport.

Message #

TCPv4: %2 bytes retransmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` UInt32	—
`saddr` UInt32	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Event ID 15 — TCPv4: Connection established between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionaccepted.

Description

TCPv4: Connection established between saddr:sport and daddr:dport.

Message #

TCPv4: Connection established between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` UInt32	—
`saddr` UInt32	—
`dport` UInt16	—
`sport` UInt16	—
`mss` UInt16	—
`sackopt` UInt16	—
`tsopt` UInt16	—
`wsopt` UInt16	—
`rcvwin` UInt32	—
`rcvwinscale` UInt16	—
`sndwinscale` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "15",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "15",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:38.720184400+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "0",
      "thread_id": "0"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "       4",
    "size": "       0",
    "daddr": "10.2.10.11",
    "saddr": "10.2.10.21",
    "dport": "51201",
    "sport": "5985",
    "mss": "1460",
    "sackopt": "1",
    "tsopt": "0",
    "wsopt": "1",
    "rcvwin": " 2098020",
    "rcvwinscale": "8",
    "sndwinscale": "8",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 16 — TCPv4: Reconnect attempt between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Reconnectattempted.

Description

TCPv4: Reconnect attempt between saddr:sport and daddr:dport.

Message #

TCPv4: Reconnect attempt between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` UInt32	—
`saddr` UInt32	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "16",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "16",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-15T23:31:42.718082500+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "0",
      "thread_id": "0"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "   10852",
    "size": "       0",
    "daddr": "10.2.10.21",
    "saddr": "10.2.10.11",
    "dport": "389",
    "sport": "51269",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 17 — TCPv4: Connection attempt failed with error code FailureCode.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: TCPconnectionattemptfailed.

Description

TCPv4: Connection attempt failed with error code FailureCode.

Message #

TCPv4: Connection attempt failed with error code %2.

Fields #

Name	Description
`Proto` UInt16	—
`FailureCode` UInt16	— NTSTATUS reference

Event ID 18 — TCPv4: size bytes copied in protocol on behalf of user for connection between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Protocolcopieddataonbehalfofuser.

Description

TCPv4: size bytes copied in protocol on behalf of user for connection between saddr:sport and daddr:dport.

Message #

TCPv4: %2 bytes copied in protocol on behalf of user for connection between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` UInt32	—
`saddr` UInt32	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "18",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "18",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:36.423184700+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4168",
      "thread_id": "6844"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    4168",
    "size": "       6",
    "daddr": "10.2.20.41",
    "saddr": "10.2.10.21",
    "dport": "5044",
    "sport": "50993",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 26 — TCPv6: size bytes transmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datasent.

Description

TCPv6: size bytes transmitted from saddr:sport to daddr:dport.

Message #

TCPv6: %2 bytes transmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` Binary	—
`saddr` Binary	—
`dport` UInt16	—
`sport` UInt16	—
`startime` UInt32	—
`endtime` UInt32	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "26",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "10",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:28:22.399794900+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4",
      "thread_id": "272"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "       4",
    "size": "      73",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "445",
    "sport": "51218",
    "startime": " 6703694",
    "endtime": " 6703694",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 27 — TCPv6: size bytes received from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Datareceived.

Description

TCPv6: size bytes received from saddr:sport to daddr:dport.

Message #

TCPv6: %2 bytes received from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` Binary	—
`saddr` Binary	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "27",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "11",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:27:51.302752300+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "7780",
      "thread_id": "14004"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    7780",
    "size": "       0",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "51180",
    "sport": "1500",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 28 — TCPv6: Connection attempted between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionattempted.

Description

TCPv6: Connection attempted between saddr:sport and daddr:dport.

Message #

TCPv6: Connection attempted between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` Binary	—
`saddr` Binary	—
`dport` UInt16	—
`sport` UInt16	—
`mss` UInt16	—
`sackopt` UInt16	—
`tsopt` UInt16	—
`wsopt` UInt16	—
`rcvwin` UInt32	—
`rcvwinscale` UInt16	—
`sndwinscale` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "28",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "12",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:28:22.399638500+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4",
      "thread_id": "11356"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "       4",
    "size": "       0",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "445",
    "sport": "51218",
    "mss": "65475",
    "sackopt": "1",
    "tsopt": "0",
    "wsopt": "1",
    "rcvwin": " 2160675",
    "rcvwinscale": "8",
    "sndwinscale": "8",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 29 — TCPv6: Connection closed between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Disconnectissued.

Description

TCPv6: Connection closed between saddr:sport and daddr:dport.

Message #

TCPv6: Connection closed between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` Binary	—
`saddr` Binary	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "29",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "13",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:27:51.302774600+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "7780",
      "thread_id": "14004"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    7780",
    "size": "       0",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "51180",
    "sport": "1500",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 30 — TCPv6: size bytes retransmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Dataretransmitted.

Description

TCPv6: size bytes retransmitted from saddr:sport to daddr:dport.

Message #

TCPv6: %2 bytes retransmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` Binary	—
`saddr` Binary	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Event ID 31 — TCPv6: Connection established between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Connectionaccepted.

Description

TCPv6: Connection established between saddr:sport and daddr:dport.

Message #

TCPv6: Connection established between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` Binary	—
`saddr` Binary	—
`dport` UInt16	—
`sport` UInt16	—
`mss` UInt16	—
`sackopt` UInt16	—
`tsopt` UInt16	—
`wsopt` UInt16	—
`rcvwin` UInt32	—
`rcvwinscale` UInt16	—
`sndwinscale` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "31",
    "version": "0",
    "level": "4",
    "task": "10",
    "opcode": "15",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:28:22.399678700+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "4",
      "thread_id": "11356"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "       4",
    "size": "       0",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "51218",
    "sport": "445",
    "mss": "65475",
    "sackopt": "1",
    "tsopt": "0",
    "wsopt": "1",
    "rcvwin": " 2160675",
    "rcvwinscale": "8",
    "sndwinscale": "8",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 32 — TCPv6: Reconnect attempt between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Reconnectattempted.

Description

TCPv6: Reconnect attempt between saddr:sport and daddr:dport.

Message #

TCPv6: Reconnect attempt between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` Binary	—
`saddr` Binary	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Event ID 34 — TCPv6: size bytes copied in protocol on behalf of user for connection between saddr:sport and daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_TCPIP
Opcode: Protocolcopieddataonbehalfofuser.

Description

TCPv6: size bytes copied in protocol on behalf of user for connection between saddr:sport and daddr:dport.

Message #

TCPv6: %2 bytes copied in protocol on behalf of user for connection between %4:%6 and %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` Binary	—
`saddr` Binary	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Event ID 42 — UDPv4: size bytes transmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatasentoverUDPprotocol.

Description

UDPv4: size bytes transmitted from saddr:sport to daddr:dport.

Message #

UDPv4: %2 bytes transmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` UInt32	—
`saddr` UInt32	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "42",
    "version": "0",
    "level": "4",
    "task": "11",
    "opcode": "42",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:40.078247000+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "228",
      "thread_id": "8220"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "     228",
    "size": "      63",
    "daddr": "10.2.10.11",
    "saddr": "10.2.10.21",
    "dport": "53",
    "sport": "53893",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 43 — UDPv4: size bytes received from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatareceivedoverUDPprotocol.

Description

UDPv4: size bytes received from saddr:sport to daddr:dport.

Message #

UDPv4: %2 bytes received from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` UInt32	—
`saddr` UInt32	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "43",
    "version": "0",
    "level": "4",
    "task": "11",
    "opcode": "43",
    "keywords": 9223372036854775824,
    "time_created": "2026-03-16T00:21:40.117095100+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "0",
      "thread_id": "0"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "     228",
    "size": "     186",
    "daddr": "10.2.10.21",
    "saddr": "10.2.10.11",
    "dport": "53893",
    "sport": "53",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 49 — UDPv4: Connection attempt failed with error code FailureCode.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: UDPconnectionattemptfailed.

Description

UDPv4: Connection attempt failed with error code FailureCode.

Message #

UDPv4: Connection attempt failed with error code %2.

Fields #

Name	Description
`Proto` UInt16	—
`FailureCode` UInt16	— NTSTATUS reference

Event ID 58 — UDPv6: size bytes transmitted from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatasentoverUDPprotocol.

Description

UDPv6: size bytes transmitted from saddr:sport to daddr:dport.

Message #

UDPv6: %2 bytes transmitted from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` Binary	—
`saddr` Binary	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "58",
    "version": "0",
    "level": "4",
    "task": "11",
    "opcode": "42",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:32:35.808545200+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "11184",
      "thread_id": "1192"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "   11184",
    "size": "      90",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "53",
    "sport": "52668",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}

Event ID 59 — UDPv6: size bytes received from saddr:sport to daddr:dport.

Provider: Microsoft-Windows-Kernel-Network
Channel: Analytic
Level: Informational
Task: KERNEL_NETWORK_TASK_UDPIP
Opcode: DatareceivedoverUDPprotocol.

Description

UDPv6: size bytes received from saddr:sport to daddr:dport.

Message #

UDPv6: %2 bytes received from %4:%6 to %3:%5.

Fields #

Name	Description
`PID` UInt32	—
`size` UInt32	—
`daddr` Binary	—
`saddr` Binary	—
`dport` UInt16	—
`sport` UInt16	—
`seqnum` UInt32	—
`connid` UInt32	—

Example Event #

{
  "system": {
    "provider": "Microsoft-Windows-Kernel-Network",
    "guid": "{7dd42a49-5329-4832-8dfd-43d979153a88}",
    "event_source_name": "",
    "event_id": "59",
    "version": "0",
    "level": "4",
    "task": "11",
    "opcode": "43",
    "keywords": 9223372036854775840,
    "time_created": "2026-03-15T23:32:35.808665300+00:00",
    "event_record_id": 0,
    "correlation": {
      "ActivityID": "{00000000-0000-0000-0000-000000000000}"
    },
    "execution": {
      "process_id": "11184",
      "thread_id": "1192"
    },
    "channel": "Microsoft-Windows-Kernel-Network/Analytic",
    "computer": "",
    "security": {
      "user_id": ""
    }
  },
  "event_data": {
    "PID": "    2680",
    "size": "      90",
    "daddr": "::1",
    "saddr": "::1",
    "dport": "53",
    "sport": "52668",
    "seqnum": "       0",
    "connid": "       0"
  },
  "message": ""
}