Packet #1971986

Database ID:	1971986
Mesh Packet ID:	`0x79e8aa14` Used for correlation across gateways
Timestamp:	2025-11-12 19:57:59 UTC
From Node:	MtBeaconFoothills (MtB5)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	🦨 corruptedstack🦨 meshtoad 🐸 (dmbp)
Channel:	LongFast
RSSI:	-107 dBm
SNR:	-19.0 dBm
Hop Info:	7/7 hops Start: 7, Limit: 0
Relay Node:	None

Long Name:	MtBeaconFoothills
Short Name:	MtB5
Node ID:	!b2a73094
MAC Address:	gPGypzCU
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:	84 bytes
Gateway:	!feedfeed
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	7 / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

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

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2997301396` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`84` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`7` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-107.0` dBm Signal strength at gateway	int32
`rx_snr`	`-19.00` dB Signal quality at gateway	float
`rx_time`	`1762977559` 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`	Not set	uint32
`tx_after`	Not set	uint32
`timestamp`	`1762977479.3929613` Unix timestamp	uint32

MQTT Privacy & Exposure Analysis

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

Exposure Level: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (7 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!feedfeed`
Signal Metrics:	RSSI: -107.0 dBm SNR: -19.00 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": "!b2a73094", "long_name": "MtBeaconFoothills", "short_name": "MtB5", "macaddr": "gPGypzCU", "hw_model": "HELTEC_V4" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!feedfeed", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997301396, "to": 4294967295, "id": 2045291028, "rx_time": 1762977559, "rx_snr": -19.0, "rx_rssi": -107, "hop_limit": 0, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921623261373330393412114d74426561636f6e466f6f7468696c6c731a044d744235220680f1b2a73094286e380c4220936d177f638ab7b1d16edbb97d9f093247535cc87e851cb33472189b1f827e624800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b2a73094", "long_name": "MtBeaconFoothills", "short_name": "MtB5", "macaddr": "gPGypzCU", "hw_model": "HELTEC_V4", "role": "CLIENT_BASE", "public_key": "k20Xf2OKt7HRbtu5fZ8JMkdTXMh+hRyzNHIYmx+CfmI=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (84 bytes)

0a0921623261373330393412114d74426561636f6e466f6f7468696c6c731a044d744235220680f1b2a73094286e380c4220936d177f638ab7b1d16edbb97d9f093247535cc87e851cb33472189b1f827e624800

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 #1971986 Success

Packet Information

Payload Data

Decoded Data: