Packet #55574 Success

NODEINFO_APP packet from Catalpa (Clpa) to !ffffffff

10
Total Receptions
10
Unique Gateways
1
Hop Count
70
Payload Bytes
Packet Information
Database ID: 55574
Mesh Packet ID: 0x538f0b02
Used for correlation across gateways
Timestamp: 2025-09-19 12:47:43 UTC
From Node: Catalpa (Clpa)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Meshtastic 1ca3 (1ca3)
Channel: LongFast
RSSI: -119 dBm
SNR: -9.75 dBm
Hop Info: 1/3 hops
Start: 3, Limit: 2
Relay Node: 7b 4b7b
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: 70 bytes
Decoded: Yes
Decoded Data:
Long Name:Catalpa
Short Name:Clpa
Node ID:!f99c5a16
MAC Address:4LD5nFoW
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:70 bytes
Gateway:!8ac01ca3
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:1 / 3
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 !8ac01ca3
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (70 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 4187773462
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 70 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi -119.0 dBm
Signal strength at gateway 		int32
rx_snr -9.75 dB
Signal quality at gateway 		float
rx_time 1758286357
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 123
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1758286063.299223
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 (1 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !8ac01ca3
Signal Metrics: RSSI: -119.0 dBm
SNR: -9.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:70 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!f99c5a16", "long_name": "Catalpa", "short_name": "Clpa", "macaddr": "4LD5nFoW", "hw_model": "RAK4631" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!8ac01ca3", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4187773462, "to": 4294967295, "id": 1401883394, "rx_time": 1758286357, "rx_snr": -9.75, "rx_rssi": -119, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 123, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092166393963356131361207436174616c70611a04436c70612206e0b0f99c5a16280942208d9d6bf38300276352a229615746de36b846a9a2a7eb8646fc2b99f627dd487b", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!f99c5a16", "long_name": "Catalpa", "short_name": "Clpa", "macaddr": "4LD5nFoW", "hw_model": "RAK4631", "public_key": "jZ1r84MAJ2NSoilhV0beNrhGqaKn64ZG/CuZ9ifdSHs=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (70 bytes)
0a092166393963356131361207436174616c70611a04436c70612206e0b0f99c5a16280942208d9d6bf38300276352a229615746de36b846a9a2a7eb8646fc2b99f627dd487b
Hex Analysis:
Size:70 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 1ca3 (1ca3) Primary 0.000s
Reference 		-119.0 dBm -9.75 dB 1 7b 4b7b LongFast 2025-09-19 12:47:43 UTC Current
Steiner Studios Tower (SST) -4.331s
Before 		-121.0 dBm -14.50 dB 2 - LongFast 2025-09-19 12:47:38 UTC View
dkTowerBot (dkTB) -2.390s
Before 		-99.0 dBm -9.50 dB 1 7b 4b7b LongFast 2025-09-19 12:47:40 UTC View
Claudiopolis-440c (440c) +1.820s
After 		-91.0 dBm -5.25 dB 2 63 XAPn , b063 LongFast 2025-09-19 12:47:45 UTC View
Harlem Relay (HR) +2.337s
After 		-112.0 dBm -5.25 dB 3 e4 LongFast 2025-09-19 12:47:45 UTC View
drp mobile (drpm) +3.623s
After 		-98.0 dBm 4.50 dB 3 a8 JOS2 , ETNA LongFast 2025-09-19 12:47:46 UTC View
DRP1 Chelsea (DRP1) +3.803s
After 		-78.0 dBm 5.25 dB 3 a8 2ea8 , MPH1 , ETNA LongFast 2025-09-19 12:47:47 UTC View
SDT f481 (f481) +7.350s
After 		-105.0 dBm -14.25 dB 3 - LongFast 2025-09-19 12:47:50 UTC View
PartyWagon | nyme.sh (PDD8) +201.113s
After 		-111.0 dBm -10.00 dB 3 - LongFast 2025-09-19 12:51:04 UTC View
https://nyme.sh | Xoder (MERB) +1962.240s
After 		-87.0 dBm 5.00 dB 3 ba JLO4 LongFast 2025-09-19 13:20:25 UTC View
10

Total Receptions

10

Unique Gateways