Packet #17818278 Success

NODEINFO_APP packet from Meshtastic 1cd3 (1cd3) to !ffffffff

45
Total Receptions
1
Unique Gateways
0
Hop Count
80
Payload Bytes
Packet Information
Database ID: 17818278
Mesh Packet ID: 0xffaa9a5b
Used for correlation across gateways
Timestamp: 2026-03-27 10:35:57 UTC
From Node: Meshtastic 1cd3 (1cd3)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Meshtastic b018 (b018)
Channel: LongFast
RSSI: -32 dBm
SNR: 6.5 dBm
Hop Info: 0/7 hops
Start: 7, Limit: 7
Relay Node: d3 1cd3
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 1cd3
Short Name:1cd3
Node ID:!f83b1cd3
MAC Address:5Av4OxzT
Hardware:HELTEC_MESH_NODE_T114
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:!db51b018
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !db51b018
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (80 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 4164623571
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 80 bytes size
hop_limit 7
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -32.0 dBm
Signal strength at gateway 		int32
rx_snr 6.50 dB
Signal quality at gateway 		float
rx_time 1774607756
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 211
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774607757.7685783
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)
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !db51b018
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -32.0 dBm
SNR: 6.50 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": "!f83b1cd3", "long_name": "Meshtastic 1cd3", "short_name": "1cd3", "macaddr": "5Av4OxzT", "hw_model": "HELTEC_MESH_NODE_T114" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db51b018", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4164623571, "to": 4294967295, "id": 4289370715, "rx_time": 1774607756, "rx_snr": 6.5, "rx_rssi": -32, "hop_limit": 7, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 211, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216638336231636433120f4d65736874617374696320316364331a04316364332206e40bf83b1cd32845422063905cc44c68f95a0c01863431f3fc728ab7a910d4a8c9199f9129d9e1ce49644800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!f83b1cd3", "long_name": "Meshtastic 1cd3", "short_name": "1cd3", "macaddr": "5Av4OxzT", "hw_model": "HELTEC_MESH_NODE_T114", "public_key": "Y5BcxExo+VoMAYY0MfP8coq3qRDUqMkZn5Ep2eHOSWQ=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (80 bytes)
0a09216638336231636433120f4d65736874617374696320316364331a04316364332206e40bf83b1cd32845422063905cc44c68f95a0c01863431f3fc728ab7a910d4a8c9199f9129d9e1ce49644800
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 b018 (b018) Primary 0.000s
Reference 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:57 UTC Current
Meshtastic b018 (b018) -0.230s
Before 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) -0.187s
Before 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) -0.162s
Before 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) -0.127s
Before 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) -0.098s
Before 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) -0.074s
Before 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) -0.050s
Before 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) -0.022s
Before 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) +0.022s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) +0.049s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) +0.082s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 MediumFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) +0.118s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 MediumFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) +0.141s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 MediumFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) +0.165s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 MediumFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) +0.187s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 MediumFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) +0.208s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 MediumFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) +0.230s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 MediumFast 2026-03-27 10:35:57 UTC View
Meshtastic b018 (b018) +0.256s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 MediumFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.280s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 MediumFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.304s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 MediumFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.333s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 MediumFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.356s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.381s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.403s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.424s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.447s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.472s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.496s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.521s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.544s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.566s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.588s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortFast 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.610s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortTurbo 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.641s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortTurbo 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.667s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortTurbo 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.692s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortTurbo 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.715s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortTurbo 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.740s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortTurbo 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.763s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortTurbo 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.784s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortTurbo 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.806s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortTurbo 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.829s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortTurbo 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.854s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 ShortTurbo 2026-03-27 10:35:58 UTC View
Meshtastic b018 (b018) +0.879s
After 		-32.0 dBm 6.50 dB 0 d3 1cd3 LongFast 2026-03-27 10:35:58 UTC View
45

Total Receptions

1

Unique Gateways