Packet #2915758 Success

NODEINFO_APP packet from Meshtastic c27c - 868 (DSU) to Meshtastic 15f4 (15f4)

17
Total Receptions
8
Unique Gateways
3
Hop Count
85
Payload Bytes
Packet Information
Database ID: 2915758
Mesh Packet ID: 0xb10caed5
Used for correlation across gateways
Timestamp: 2025-07-05 18:51:17 UTC
From Node: Meshtastic c27c - 868 (DSU)
To Node: Meshtastic 15f4 (15f4)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Meshtastic 5c40🌐📱 (M5)
Channel: Iberia
RSSI: -95 dBm
SNR: 6.75 dBm
Hop Info: 3/4 hops
Start: 4, Limit: 1
Payload Data
Protocol: NODEINFO_APP
Size: 85 bytes
Decoded: Yes
Decoded Data:
Long Name:Meshtastic c27c - 868
Short Name:DSU
Node ID:!b03dc27c
MAC Address:NM2wPcJ8
Hardware:HELTEC_V3
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:85 bytes
Gateway:!849a5c40
Channel:Iberia
Payload Type:NODEINFO_APP
Hop Count:3 / 4
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !849a5c40
Node ID format
channel_id Iberia
packet MeshPacket (85 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2956837500
Source node ID 		uint32
to 2697663988
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 85 bytes size
hop_limit 1
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -95.0 dBm
Signal strength at gateway 		int32
rx_snr 6.75 dB
Signal quality at gateway 		float
rx_time 1751714964
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 176
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1751741477.0190995
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
  • ✓ Custom channel: Iberia
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !849a5c40
Signal Metrics: RSSI: -95.0 dBm
SNR: 6.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:85 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!b03dc27c", "long_name": "Meshtastic c27c - 868", "short_name": "DSU", "macaddr": "NM2wPcJ8", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!849a5c40", "channel_id": "Iberia", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2956837500, "to": 2697663988, "id": 2970398421, "rx_time": 1751714964, "rx_snr": 6.75, "rx_rssi": -95, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 176, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921623033646332376312154d6573687461737469632063323763202d203836381a03445355220634cdb03dc27c282b4220679974316aa4544fe710825df9ea3cecc6ad53bf8c28eef1d19e2011404813794800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b03dc27c", "long_name": "Meshtastic c27c - 868", "short_name": "DSU", "macaddr": "NM2wPcJ8", "hw_model": "HELTEC_V3", "public_key": "Z5l0MWqkVE/nEIJd+eo87MatU7+MKO7x0Z4gEUBIE3k=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (85 bytes)
0a0921623033646332376312154d6573687461737469632063323763202d203836381a03445355220634cdb03dc27c282b4220679974316aa4544fe710825df9ea3cecc6ad53bf8c28eef1d19e2011404813794800
Hex Analysis:
Size:85 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
Meshtastic 5c40🌐📱 (M5) Primary 0.000s
Reference 		-95.0 dBm 6.75 dB 3 Iberia 2025-07-05 18:51:17 Current
Meshtastic c27c - 868 (DSU) -26530.203s
Before 		Unknown Unknown 0 Iberia 2025-07-05 11:29:06 View
Meshtastic c27c - 868 (DSU) -26529.159s
Before 		Unknown Unknown 0 Iberia 2025-07-05 11:29:07 View
SkG@Home 🗼🌐 (SkGH) -26516.535s
Before 		-107.0 dBm -3.50 dB 1 Iberia 2025-07-05 11:29:20 View
SkG@Home 🗼🌐 (SkGH) -26516.474s
Before 		-107.0 dBm -3.50 dB 1 Iberia 2025-07-05 11:29:20 View
Venturada2🗼🌐☀️ (Vb2) -26513.234s
Before 		-85.0 dBm 5.25 dB 2 Iberia 2025-07-05 11:29:23 View
Venturada2🗼🌐☀️ (Vb2) -26513.188s
Before 		-85.0 dBm 5.25 dB 2 Iberia 2025-07-05 11:29:23 View
GRN1-Base📡🌐 (GRN1) -26512.891s
Before 		-117.0 dBm -7.75 dB 2 Iberia 2025-07-05 11:29:24 View
Venturada base🗼🌐 (Vb) -26512.317s
Before 		-99.0 dBm 4.25 dB 2 Iberia 2025-07-05 11:29:24 View
GRN1-Base📡🌐 (GRN1) -26511.836s
Before 		-117.0 dBm -7.75 dB 2 Iberia 2025-07-05 11:29:25 View
Venturada base🗼🌐 (Vb) -26510.830s
Before 		-99.0 dBm 4.25 dB 2 Iberia 2025-07-05 11:29:26 View
Quixote_BBS_5🗼🌐 (QXT5) -26510.633s
Before 		-106.0 dBm 2.00 dB 3 Iberia 2025-07-05 11:29:26 View
Quixote_BBS_5🗼🌐 (QXT5) -26508.807s
Before 		-106.0 dBm 2.00 dB 3 Iberia 2025-07-05 11:29:28 View
Meshtastic 5c40🌐📱 (M5) +3.082s
After 		-95.0 dBm 6.75 dB 3 Iberia 2025-07-05 18:51:20 View
2zzGe 📶 (3160) +17238.462s
After 		-127.0 dBm -18.50 dB 3 Iberia 2025-07-05 23:38:35 View
2zzGe 📶 (3160) +17240.581s
After 		-127.0 dBm -18.50 dB 3 Iberia 2025-07-05 23:38:37 View
2zzGe 📶 (3160) +17255.501s
After 		-127.0 dBm -18.50 dB 3 Iberia 2025-07-05 23:38:52 View
17

Total Receptions

8

Unique Gateways