Packet #2042422

Database ID:	2042422
Mesh Packet ID:	`0x7f8c0ebd` Used for correlation across gateways
Timestamp:	2026-04-23 23:51:53 UTC
From Node:	Kokoshell (KOKO)
To Node:	Meshtastic 9cbc (9cbc)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Ghost-Base👻 (SG01)
Channel:	LongFast
RSSI:	-44 dBm
SNR:	6.75 dBm
Hop Info:	1/2 hops Start: 2, Limit: 1
Relay Node:	`02` SG04 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	Kokoshell
Short Name:	KOKO
Node ID:	!1ba14cd4
MAC Address:	AAAAAAAA
Hardware:	HELTEC_V4

Raw Packet Analysis

Complete field breakdown and MQTT privacy/exposure analysis

Packet Structure

MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)

Total Size:	40 bytes
Gateway:	!0ac9e82c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 2

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 2 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!0ac9e82c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (40 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`463555796` Source node ID	uint32
`to`	`3562773692` Target node ID	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`40` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-44.0` dBm Signal strength at gateway	int32
`rx_snr`	`6.75` dB Signal quality at gateway	float
`rx_time`	`1776988313` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	True Acknowledgment requested	bool
`priority`	Not set	enum
`delayed`	Not set	enum
`channel`	`8` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`2` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	Not set	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
✓ Targeted to specific node
✓ Gateway node ID tracked

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Want ack:	`True`
Gateway ID:	`!0ac9e82c`
Signal Metrics:	RSSI: -44.0 dBm SNR: 6.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	40 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!1ba14cd4", "long_name": "Kokoshell", "short_name": "KOKO", "macaddr": "AAAAAAAA", "hw_model": "HELTEC_V4" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 463555796, "to": 3562773692, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhMWJhMTRjZDQSCUtva29zaGVsbBoES09LTyIGAAAAAAAAKG44DA==", "want_response": true, "dest": 3562773692, "request_id": 1566778091, "bitfield": 3 }, "id": 2139885245, "rx_time": 1776988313, "rx_snr": 6.75, "hop_limit": 1, "want_ack": true, "rx_rssi": -44, "hop_start": 2, "relay_node": 2, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!0ac9e82c" }, "mesh_packet": { "from": 463555796, "to": 3562773692, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhMWJhMTRjZDQSCUtva29zaGVsbBoES09LTyIGAAAAAAAAKG44DA==", "want_response": true, "dest": 3562773692, "request_id": 1566778091, "bitfield": 3, "parsed_payload": { "id": "!1ba14cd4", "long_name": "Kokoshell", "short_name": "KOKO", "macaddr": "AAAAAAAA", "hw_model": "HELTEC_V4", "role": "CLIENT_BASE", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 2139885245, "rx_time": 1776988313, "rx_snr": 6.75, "hop_limit": 1, "want_ack": true, "rx_rssi": -44, "hop_start": 2, "relay_node": 2, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (40 bytes)

0a0921316261313463643412094b6f6b6f7368656c6c1a044b4f4b4f2206000000000000286e380c

Hex Analysis:

Size:	40 bytes
Format:	Protobuf (Protocol Buffers)
Encoding:	Binary with varint and length-delimited fields

This is the raw protobuf-encoded payload as received from MQTT. The structure follows the Meshtastic protobuf schema definitions.

Packet #2042422 Success

Packet Information

Payload Data

Decoded Data: