Packet #1736523

Database ID:	1736523
Mesh Packet ID:	`0xedf7517b` Used for correlation across gateways
Timestamp:	2026-04-04 09:32:10 UTC
From Node:	samsa tracker (c0d1)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	samsa tracker (c0d1)
Channel:	samsa
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/1 hops Start: 1, Limit: 1
Relay Node:	`d1` c0d1 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	samsa tracker
Short Name:	c0d1
Node ID:	!f48dc0d1
MAC Address:	5VL0jcDR
Hardware:	TRACKER_T1000_E

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:	80 bytes
Gateway:	!f48dc0d1
Channel:	samsa
Payload Type:	NODEINFO_APP
Hop Count:	0 / 1

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: samsa
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!f48dc0d1` Node ID format
`channel_id`	`samsa`
`packet`	`MeshPacket` (80 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`4102930641` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`80` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`1` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1775295130` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`BACKGROUND` Packet priority level	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`209` 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: samsa
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!f48dc0d1`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	80 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!f48dc0d1", "long_name": "samsa tracker", "short_name": "c0d1", "macaddr": "5VL0jcDR", "hw_model": "TRACKER_T1000_E" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 4102930641, "to": 4294967295, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhZjQ4ZGMwZDESDXNhbXNhIHRyYWNrZXIaBGMwZDEiBuVS9I3A0ShHOAFCIJnC/VpMdQ7IvLyOaq4LNepi9adEkU3GEHn1WvRhNvErSAA=" }, "id": 3992408443, "rx_time": 1775295130, "hop_limit": 1, "priority": "BACKGROUND", "hop_start": 1, "relay_node": 209 }, "channel_id": "samsa", "gateway_id": "!f48dc0d1" }, "mesh_packet": { "from": 4102930641, "to": 4294967295, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhZjQ4ZGMwZDESDXNhbXNhIHRyYWNrZXIaBGMwZDEiBuVS9I3A0ShHOAFCIJnC/VpMdQ7IvLyOaq4LNepi9adEkU3GEHn1WvRhNvErSAA=", "parsed_payload": { "id": "!f48dc0d1", "long_name": "samsa tracker", "short_name": "c0d1", "macaddr": "5VL0jcDR", "hw_model": "TRACKER_T1000_E", "role": "CLIENT_MUTE", "public_key": "mcL9Wkx1Dsi8vI5qrgs16mL1p0SRTcYQefVa9GE28Ss=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 3992408443, "rx_time": 1775295130, "hop_limit": 1, "priority": "BACKGROUND", "hop_start": 1, "relay_node": 209 } }

Raw Packet Data (80 bytes)

0a09216634386463306431120d73616d736120747261636b65721a04633064312206e552f48dc0d128473801422099c2fd5a4c750ec8bcbc8e6aae0b35ea62f5a744914dc61079f55af46136f12b4800

Hex Analysis:

Size:	80 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 #1736523 Success

Packet Information

Payload Data

Decoded Data: