Packet #12451775 Success

NODEINFO_APP packet from Chamartin_Solar🗼☀️ (Chmt) to !ffffffff

22
Total Receptions
22
Unique Gateways
1
Hop Count
88
Payload Bytes
Packet Information
Database ID: 12451775
Mesh Packet ID: 0x1d309cf8
Used for correlation across gateways
Timestamp: 2025-09-27 14:59:04 UTC
From Node: Chamartin_Solar🗼☀️ (Chmt)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Fuenca fijo (c578)
Channel: MediumSlow
RSSI: -118 dBm
SNR: -6.25 dBm
Hop Info: 1/4 hops
Start: 4, Limit: 3
Payload Data
Protocol: NODEINFO_APP
Size: 88 bytes
Decoded: Yes
Decoded Data:
Long Name:Chamartin_Solar🗼☀️
Short Name:Chmt
Node ID:!794c9df5
MAC Address:6RJ5TJ31
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:88 bytes
Gateway:!a0cbc578
Channel:MediumSlow
Payload Type:NODEINFO_APP
Hop Count:1 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !a0cbc578
Node ID format
channel_id MediumSlow
packet MeshPacket (88 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2035064309
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 88 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 4
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 -6.25 dB
Signal quality at gateway 		float
rx_time 1758985142
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 8
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1758985144.0950794
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)
  • ✓ Custom channel: MediumSlow
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !a0cbc578
Signal Metrics: RSSI: -118.0 dBm
SNR: -6.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:88 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!794c9df5", "long_name": "Chamartin_Solar🗼☀️", "short_name": "Chmt", "macaddr": "6RJ5TJ31", "hw_model": "RAK4631" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a0cbc578", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2035064309, "to": 4294967295, "id": 489725176, "rx_time": 1758985142, "rx_snr": -6.25, "rx_rssi": -118, "hop_limit": 3, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 8, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921373934633964663512194368616d617274696e5f536f6c6172f09f97bce29880efb88f1a0443686d742206e912794c9df52809422088fae16ac8f5c25a091f17108bc69d22dee15e653ebaac19b6609af7ee002046", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!794c9df5", "long_name": "Chamartin_Solar🗼☀️", "short_name": "Chmt", "macaddr": "6RJ5TJ31", "hw_model": "RAK4631", "public_key": "iPrhasj1wloJHxcQi8adIt7hXmU+uqwZtmCa9+4AIEY=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (88 bytes)
0a0921373934633964663512194368616d617274696e5f536f6c6172f09f97bce29880efb88f1a0443686d742206e912794c9df52809422088fae16ac8f5c25a091f17108bc69d22dee15e653ebaac19b6609af7ee002046
Hex Analysis:
Size:88 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.
All Receptions
All gateways that received this packet
Correlation: Using Mesh Packet ID
Reception Locations

Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Channel Timestamp Actions
Fuenca fijo (c578) Primary 0.000s
Reference 		-118.0 dBm -6.25 dB 1 MediumSlow 2025-09-27 14:59:04 Current
Venturada2🗼🌐☀️ (Vb2) -1.869s
Before 		-102.0 dBm -5.75 dB 0 MediumSlow 2025-09-27 14:59:02 View
g1bal (g1b0) -1.860s
Before 		-100.0 dBm -1.00 dB 0 MediumSlow 2025-09-27 14:59:02 View
Malasaña Solar ☀️ (🌇) -1.586s
Before 		-118.0 dBm -10.00 dB 0 MediumSlow 2025-09-27 14:59:02 View
Baldur Fijo (BalF) -1.552s
Before 		-115.0 dBm -5.50 dB 0 MediumSlow 2025-09-27 14:59:02 View
Meshtastic 1760 (1760) -1.545s
Before 		-118.0 dBm -3.75 dB 0 MediumSlow 2025-09-27 14:59:02 View
Suop 📡 🌐 (SUOP) -1.538s
Before 		-116.0 dBm -6.25 dB 0 MediumSlow 2025-09-27 14:59:02 View
Kenobi23 QTH (5aec) -1.389s
Before 		-99.0 dBm 1.50 dB 0 MediumSlow 2025-09-27 14:59:02 View
Meshtastic 18a4 (18a4) -1.351s
Before 		Unknown Unknown 1 MediumSlow 2025-09-27 14:59:02 View
Will - Azuqueca (WAzq) -0.275s
Before 		-108.0 dBm -0.50 dB 1 MediumSlow 2025-09-27 14:59:03 View
SkG@Somewhere 🤨 (SkG?) +0.010s
After 		-109.0 dBm -11.75 dB 1 MediumSlow 2025-09-27 14:59:04 View
Machu Pichu (MaPi) +0.025s
After 		-92.0 dBm 2.50 dB 1 MediumSlow 2025-09-27 14:59:04 View
[TLG] 📡🌐🔋🔌 (tlg0) +0.071s
After 		-110.0 dBm -5.75 dB 1 MediumSlow 2025-09-27 14:59:04 View
Naranjo C191 🌐 (FNL) +0.080s
After 		-113.0 dBm -4.25 dB 1 MediumSlow 2025-09-27 14:59:04 View
Rodashtastic🗼🌐 (RDSt) +0.091s
After 		-114.0 dBm -5.50 dB 1 MediumSlow 2025-09-27 14:59:04 View
SkG@Home 📡🌐 (SkGH) +0.102s
After 		-123.0 dBm -13.25 dB 1 MediumSlow 2025-09-27 14:59:04 View
EA5GHE-09 (58a8) +0.157s
After 		-107.0 dBm -13.75 dB 1 MediumSlow 2025-09-27 14:59:04 View
Mec Rocket Meco (MRM) +0.955s
After 		-101.0 dBm 1.25 dB 2 MediumSlow 2025-09-27 14:59:05 View
C191 🌐 (C191) +1.574s
After 		-122.0 dBm -13.75 dB 1 MediumSlow 2025-09-27 14:59:05 View
Monolito (MoN) +1.733s
After 		-64.0 dBm 8.75 dB 2 MediumSlow 2025-09-27 14:59:05 View
Meshtastic c498📡🌐 (C498) +2.477s
After 		-118.0 dBm -16.00 dB 2 MediumSlow 2025-09-27 14:59:06 View
Wis 7d99 (7d99) +244.751s
After 		-33.0 dBm 8.00 dB 1 MediumSlow 2025-09-27 15:03:08 View
22

Total Receptions

22

Unique Gateways