Packet #18163708 Success

NODEINFO_APP packet from VE3LJU2_base (LJU2) to !ffffffff

45
Total Receptions
1
Unique Gateways
2
Hop Count
79
Payload Bytes
Packet Information
Database ID: 18163708
Mesh Packet ID: 0x3586b59c
Used for correlation across gateways
Timestamp: 2026-03-28 05:56:05 UTC
From Node: VE3LJU2_base (LJU2)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: AH001 (0d74)
Channel: LongFast
RSSI: -117 dBm
SNR: -8.5 dBm
Hop Info: 2/5 hops
Start: 5, Limit: 3
Relay Node: 7c PBSE
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: 79 bytes
Decoded: Yes
Decoded Data:
Long Name:VE3LJU2_base
Short Name:LJU2
Node ID:!0ac9e854
MAC Address:6PYKyehU
Hardware:HELTEC_V4
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:79 bytes
Gateway:!b03d0d74
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:2 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !b03d0d74
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (79 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 181004372
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 79 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -117.0 dBm
Signal strength at gateway 		int32
rx_snr -8.50 dB
Signal quality at gateway 		float
rx_time 1774677364
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 124
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774677365.423941
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
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b03d0d74
Signal Metrics: RSSI: -117.0 dBm
SNR: -8.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:79 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!0ac9e854", "long_name": "VE3LJU2_base", "short_name": "LJU2", "macaddr": "6PYKyehU", "hw_model": "HELTEC_V4" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b03d0d74", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 181004372, "to": 4294967295, "id": 898020764, "rx_time": 1774677364, "rx_snr": -8.5, "rx_rssi": -117, "hop_limit": 3, "hop_start": 5, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 124, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213061633965383534120c5645334c4a55325f626173651a044c4a55322206e8f60ac9e854286e380c4220ad71b1a03a8963e0cf2c3b621fd4b1e08bcf93532bbcf03c7148c0c79c083f444800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!0ac9e854", "long_name": "VE3LJU2_base", "short_name": "LJU2", "macaddr": "6PYKyehU", "hw_model": "HELTEC_V4", "role": "CLIENT_BASE", "public_key": "rXGxoDqJY+DPLDtiH9Sx4IvPk1MrvPA8cUjAx5wIP0Q=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (79 bytes)
0a09213061633965383534120c5645334c4a55325f626173651a044c4a55322206e8f60ac9e854286e380c4220ad71b1a03a8963e0cf2c3b621fd4b1e08bcf93532bbcf03c7148c0c79c083f444800
Hex Analysis:
Size:79 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
AH001 (0d74) Primary 0.000s
Reference 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:05 UTC Current
AH001 (0d74) -0.198s
Before 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) -0.173s
Before 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) -0.150s
Before 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) -0.126s
Before 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) -0.103s
Before 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) -0.078s
Before 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) -0.057s
Before 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) -0.022s
Before 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.023s
After 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.048s
After 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.072s
After 		-117.0 dBm -8.50 dB 2 7c PBSE MediumFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.097s
After 		-117.0 dBm -8.50 dB 2 7c PBSE MediumFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.123s
After 		-117.0 dBm -8.50 dB 2 7c PBSE MediumFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.146s
After 		-117.0 dBm -8.50 dB 2 7c PBSE MediumFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.169s
After 		-117.0 dBm -8.50 dB 2 7c PBSE MediumFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.195s
After 		-117.0 dBm -8.50 dB 2 7c PBSE MediumFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.221s
After 		-117.0 dBm -8.50 dB 2 7c PBSE MediumFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.248s
After 		-117.0 dBm -8.50 dB 2 7c PBSE MediumFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.274s
After 		-117.0 dBm -8.50 dB 2 7c PBSE MediumFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.301s
After 		-117.0 dBm -8.50 dB 2 7c PBSE MediumFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.323s
After 		-117.0 dBm -8.50 dB 2 7c PBSE MediumFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.346s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.367s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.392s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.417s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.447s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.469s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.492s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.515s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.535s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.560s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortFast 2026-03-28 05:56:05 UTC View
AH001 (0d74) +0.580s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortFast 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.603s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortTurbo 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.626s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortTurbo 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.649s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortTurbo 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.672s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortTurbo 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.694s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortTurbo 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.715s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortTurbo 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.736s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortTurbo 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.757s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortTurbo 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.778s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortTurbo 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.802s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortTurbo 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.826s
After 		-117.0 dBm -8.50 dB 2 7c PBSE ShortTurbo 2026-03-28 05:56:06 UTC View
AH001 (0d74) +0.851s
After 		-117.0 dBm -8.50 dB 2 7c PBSE LongFast 2026-03-28 05:56:06 UTC View
45

Total Receptions

1

Unique Gateways