Packet #3739789

Database ID:	3739789
Mesh Packet ID:	`0x08988880` Used for correlation across gateways
Timestamp:	2025-12-17 15:46:17 UTC
From Node:	MahopacVolz_c322 (c322)
To Node:	!698298d8 (98d8)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Cam Mesh Repeater (CAMR)
Channel:	LongFast
RSSI:	-118 dBm
SNR:	-8.5 dBm
Hop Info:	1/3 hops Start: 3, Limit: 2
Relay Node:	`83` 2b83 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	MahopacVolz_c322
Short Name:	c322
Node ID:	!b086c322
MAC Address:	zdewhsMi
Hardware:	RAK4631

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:	83 bytes
Gateway:	!435a8cf4
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 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

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!435a8cf4` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (83 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2961621794` Source node ID	uint32
`to`	`1770166488` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`83` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-118.0` dBm Signal strength at gateway	int32
`rx_snr`	`-8.50` dB Signal quality at gateway	float
`rx_time`	`1765986530` 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`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`131` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765986377.6905222` Unix timestamp	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 (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!435a8cf4`
Signal Metrics:	RSSI: -118.0 dBm SNR: -8.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	83 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!b086c322", "long_name": "MahopacVolz_c322", "short_name": "c322", "macaddr": "zdewhsMi", "hw_model": "RAK4631" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!435a8cf4", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2961621794, "to": 1770166488, "id": 144214144, "rx_time": 1765986530, "rx_snr": -8.5, "rx_rssi": -118, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 131, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921623038366333323212104d61686f706163566f6c7a5f633332321a04633332322206cdd7b086c3222809380b4220ff87f94fa10e9b66db6155198b7b2ea775b9d946ead2274144210377ecaf69214801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b086c322", "long_name": "MahopacVolz_c322", "short_name": "c322", "macaddr": "zdewhsMi", "hw_model": "RAK4631", "role": "ROUTER_LATE", "public_key": "/4f5T6EOm2bbYVUZi3sup3W52Ubq0idBRCEDd+yvaSE=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (83 bytes)

0a0921623038366333323212104d61686f706163566f6c7a5f633332321a04633332322206cdd7b086c3222809380b4220ff87f94fa10e9b66db6155198b7b2ea775b9d946ead2274144210377ecaf69214801

Hex Analysis:

Size:	83 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 #3739789 Success

Packet Information

Payload Data

Decoded Data: