Packet #28345051 Success

NODEINFO_APP packet from Meshtastic d4a8 (d4a8) to LM c12c (LM)

2
Total Receptions
2
Unique Gateways
2
Hop Count
80
Payload Bytes
Packet Information
Database ID: 28345051
Mesh Packet ID: 0xcda2c9c7
Used for correlation across gateways
Timestamp: 2025-12-17 21:23:09 UTC
From Node: Meshtastic d4a8 (d4a8)
To Node: LM c12c (LM)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Meshtastic e958 (e958)
Channel: Zaragoza
RSSI: -121 dBm
SNR: -15.75 dBm
Hop Info: 2/4 hops
Start: 4, Limit: 2
Relay Node: 48 EA2Z
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: NODEINFO_APP
Size: 80 bytes
Decoded: Yes
Decoded Data:
Long Name:Meshtastic d4a8
Short Name:d4a8
Node ID:!ba61d4a8
MAC Address:ECC6YdSo
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:80 bytes
Gateway:!433be958
Channel:Zaragoza
Payload Type:NODEINFO_APP
Hop Count:2 / 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 (2 hops)
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !433be958
Node ID format
channel_id Zaragoza
packet MeshPacket (80 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3126973608
Source node ID 		uint32
to 2661400876
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 80 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -121.0 dBm
Signal strength at gateway 		int32
rx_snr -15.75 dB
Signal quality at gateway 		float
rx_time 1766006584
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 72
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766006589.203357
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: Zaragoza
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !433be958
Signal Metrics: RSSI: -121.0 dBm
SNR: -15.75 dB
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": "!ba61d4a8", "long_name": "Meshtastic d4a8", "short_name": "d4a8", "macaddr": "ECC6YdSo", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!433be958", "channel_id": "Zaragoza", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3126973608, "to": 2661400876, "id": 3449997767, "rx_time": 1766006584, "rx_snr": -15.75, "rx_rssi": -121, "hop_limit": 2, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 72, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216261363164346138120f4d65736874617374696320643461381a046434613822061020ba61d4a8282b4220738334716c60149bd85d56c9eeb953a8cd0fba6c127cb74d830ab7b0b92b3e6e4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!ba61d4a8", "long_name": "Meshtastic d4a8", "short_name": "d4a8", "macaddr": "ECC6YdSo", "hw_model": "HELTEC_V3", "public_key": "c4M0cWxgFJvYXVbJ7rlTqM0PumwSfLdNgwq3sLkrPm4=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (80 bytes)
0a09216261363164346138120f4d65736874617374696320643461381a046434613822061020ba61d4a8282b4220738334716c60149bd85d56c9eeb953a8cd0fba6c127cb74d830ab7b0b92b3e6e4800
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.
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 Relay Channel Timestamp Actions
Meshtastic e958 (e958) Primary 0.000s
Reference 		-121.0 dBm -15.75 dB 2 48 EA2Z Zaragoza 2025-12-17 21:23:09 UTC Current
Meshtastic 0f00 (0f00) -3.552s
Before 		-114.0 dBm -13.25 dB 2 48 EA2Z Zaragoza 2025-12-17 21:23:05 UTC View
2

Total Receptions

2

Unique Gateways