Packet #2701866

Database ID:	2701866
Mesh Packet ID:	`0xf3e4f6aa` Used for correlation across gateways
Timestamp:	2026-10-14 17:05:09 UTC
From Node:	EB5JHT_Tracker (JHT4)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Ea7ko_e22 (9943)
Channel:	SFNarrow
RSSI:	-77 dBm
SNR:	-1.0 dBm
Hop Info:	6/7 hops Start: 7, Limit: 1
Relay Node:	`3f` Last byte of the last hop that relayed this packet

Long Name:	EB5JHT_Tracker
Short Name:	JHT4
Node ID:	!5931ce83
MAC Address:	1bBZMc6D
Hardware:	NRF52_PROMICRO_DIY

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:	81 bytes
Gateway:	!d2b59943
Channel:	SFNarrow
Payload Type:	NODEINFO_APP
Hop Count:	6 / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: SFNarrow
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!d2b59943` Node ID format
`channel_id`	`SFNarrow`
`packet`	`MeshPacket` (81 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`1496436355` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`81` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`6` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-77.0` dBm Signal strength at gateway	int32
`rx_snr`	`-1.00` dB Signal quality at gateway	float
`rx_time`	`1791997505` 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`	`32` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`63` 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: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: SFNarrow
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (6 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!d2b59943`
Signal Metrics:	RSSI: -77.0 dBm SNR: -1.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	81 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!5931ce83", "long_name": "EB5JHT_Tracker", "short_name": "JHT4", "macaddr": "1bBZMc6D", "hw_model": "NRF52_PROMICRO_DIY" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 1496436355, "to": 4294967295, "channel": 32, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNTkzMWNlODMSDkVCNUpIVF9UcmFja2VyGgRKSFQ0IgbVsFkxzoMoPzgBQiDbZjhRUPjjRuzaf30od5jgR6dDTAkJR0TbvNJBzJ2/eEgA", "bitfield": 1 }, "id": 4091868842, "rx_time": 1791997505, "rx_snr": -1.0, "hop_limit": 1, "rx_rssi": -77, "hop_start": 7, "relay_node": 63, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "SFNarrow", "gateway_id": "!d2b59943" }, "mesh_packet": { "from": 1496436355, "to": 4294967295, "channel": 32, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNTkzMWNlODMSDkVCNUpIVF9UcmFja2VyGgRKSFQ0IgbVsFkxzoMoPzgBQiDbZjhRUPjjRuzaf30od5jgR6dDTAkJR0TbvNJBzJ2/eEgA", "bitfield": 1, "parsed_payload": { "id": "!5931ce83", "long_name": "EB5JHT_Tracker", "short_name": "JHT4", "macaddr": "1bBZMc6D", "hw_model": "NRF52_PROMICRO_DIY", "role": "CLIENT_MUTE", "public_key": "22Y4UVD440bs2n99KHeY4EenQ0wJCUdE27zSQcydv3g=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 4091868842, "rx_time": 1791997505, "rx_snr": -1.0, "hop_limit": 1, "rx_rssi": -77, "hop_start": 7, "relay_node": 63, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (81 bytes)

0a09213539333163653833120e4542354a48545f547261636b65721a044a4854342206d5b05931ce83283f38014220db66385150f8e346ecda7f7d287798e047a7434c09094744dbbcd241cc9dbf784800

Hex Analysis:

Size:	81 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 #2701866 Success

Packet Information

Payload Data

Decoded Data: