Packet #786733

Database ID:	786733
Mesh Packet ID:	`0x3be91db0` Used for correlation across gateways
Timestamp:	2026-07-18 12:56:50 UTC
From Node:	Marshallton Solar (MARS)
To Node:	BarrelRoll (BR)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Meshtastic 8810 (NtSq)
Channel:	LongFast
RSSI:	-110 dBm
SNR:	-11.25 dBm
Hop Info:	3/3 hops Start: 3, Limit: 0
Relay Node:	None

Long Name:	Marshallton Solar
Short Name:	MARS
Node ID:	!ccd83106
MAC Address:	0ZfM2DEG
Hardware:	SEEED_SOLAR_NODE

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:	84 bytes
Gateway:	!b2a78810
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 3

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...

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

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!b2a78810` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (84 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`3436720390` Source node ID	uint32
`to`	`2814096033` Target node ID	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`84` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-110.0` dBm Signal strength at gateway	int32
`rx_snr`	`-11.25` dB Signal quality at gateway	float
`rx_time`	`1784379402` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK 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`	Not set	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)
✓ Targeted to specific node
✓ Gateway node ID tracked

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!b2a78810`
Signal Metrics:	RSSI: -110.0 dBm SNR: -11.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	84 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!ccd83106", "long_name": "Marshallton Solar", "short_name": "MARS", "macaddr": "0ZfM2DEG", "hw_model": "SEEED_SOLAR_NODE" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 3436720390, "to": 2814096033, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhY2NkODMxMDYSEU1hcnNoYWxsdG9uIFNvbGFyGgRNQVJTIgbRl8zYMQYoXzgMQiBkNrHd1yRCiSBHNh6O818BuMvGSMNAZX8PDRWz+DVqN0gA", "request_id": 1089084929, "bitfield": 1 }, "id": 1005133232, "rx_time": 1784379402, "rx_snr": -11.25, "rx_rssi": -110, "hop_start": 3, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!b2a78810" }, "mesh_packet": { "from": 3436720390, "to": 2814096033, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhY2NkODMxMDYSEU1hcnNoYWxsdG9uIFNvbGFyGgRNQVJTIgbRl8zYMQYoXzgMQiBkNrHd1yRCiSBHNh6O818BuMvGSMNAZX8PDRWz+DVqN0gA", "request_id": 1089084929, "bitfield": 1, "parsed_payload": { "id": "!ccd83106", "long_name": "Marshallton Solar", "short_name": "MARS", "macaddr": "0ZfM2DEG", "hw_model": "SEEED_SOLAR_NODE", "role": "CLIENT_BASE", "public_key": "ZDax3dckQokgRzYejvNfAbjLxkjDQGV/Dw0Vs/g1ajc=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 1005133232, "rx_time": 1784379402, "rx_snr": -11.25, "rx_rssi": -110, "hop_start": 3, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (84 bytes)

0a0921636364383331303612114d61727368616c6c746f6e20536f6c61721a044d4152532206d197ccd83106285f380c42206436b1ddd72442892047361e8ef35f01b8cbc648c340657f0f0d15b3f8356a374800

Hex Analysis:

Size:	84 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 #786733 Success

Packet Information

Payload Data

Decoded Data: