Packet #951926 Success

TEXT_MESSAGE_APP packet from Lv4 - Heltec V4 Green (Lv4) to !ffffffff

9
Total Receptions
8
Unique Gateways
5
Hop Count
11
Payload Bytes
Packet Information
Database ID: 951926
Mesh Packet ID: 0xa2486e37
Used for correlation across gateways
Timestamp: 2025-10-18 17:23:53 UTC
From Node: Lv4 - Heltec V4 Green (Lv4)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TEXT_MESSAGE_APP
Port: 1
Gateway: drp mobile (drpm)
Channel: LongFast
RSSI: -30 dBm
SNR: 6.25 dBm
Hop Info: 5/5 hops
Start: 5, Limit: 0
Relay Node: ac BFY , A3WS , FF1
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: TEXT_MESSAGE_APP
Size: 11 bytes
Decoded: Yes
Text Content:
Lefrak City
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:11 bytes
Gateway:!ce9e7b6e
Channel:LongFast
Payload Type:TEXT_MESSAGE_APP
Hop Count:5 / 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 !ce9e7b6e
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (11 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2997325024
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 1
TEXT_MESSAGE_APP 		enum
decoded.payload_length 11 bytes size
hop_limit Not set uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi -30.0 dBm
Signal strength at gateway 		int32
rx_snr 6.25 dB
Signal quality at gateway 		float
rx_time 1760808254
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 172
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1760808233.3806796
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 (5 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !ce9e7b6e
Signal Metrics: RSSI: -30.0 dBm
SNR: 6.25 dB
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!ce9e7b6e", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997325024, "to": 4294967295, "id": 2722655799, "rx_time": 1760808254, "rx_snr": 6.25, "rx_rssi": -30, "hop_limit": 0, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 172, "tx_after": 0, "decoded": { "portnum": 1, "payload": "4c656672616b2043697479", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "Lefrak City", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }
Raw Packet Data (11 bytes)
4c656672616b2043697479
Hex Analysis:
Size:11 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
drp mobile (drpm) Primary 0.000s
Reference 		-30.0 dBm 6.25 dB 5 ac BFY , A3WS , FF1 LongFast 2025-10-18 17:23:53 UTC Current
JLY2 - Throggs Neck Solar (JLY2) -21.709s
Before 		-66.0 dBm 2.25 dB 2 35 JLX5 LongFast 2025-10-18 17:23:31 UTC View
GSI Portable (GSIP) -18.963s
Before 		-111.0 dBm -11.00 dB 3 94 LongFast 2025-10-18 17:23:34 UTC View
JLY2 - Throggs Neck Solar (JLY2) -17.793s
Before 		-96.0 dBm -2.00 dB 1 f4 JLO6 LongFast 2025-10-18 17:23:35 UTC View
K2XAP G2 (XAP2) -3.512s
Before 		-93.0 dBm -1.75 dB 5 - LongFast 2025-10-18 17:23:49 UTC View
Claudiopolis-440c (440c) -3.147s
Before 		-110.0 dBm -14.50 dB 5 - LongFast 2025-10-18 17:23:50 UTC View
K2XAP / nyme.sh (XAP) -3.038s
Before 		-128.0 dBm -15.75 dB 5 - LongFast 2025-10-18 17:23:50 UTC View
DRP0 Astoria (DRP0) -0.553s
Before 		-71.0 dBm 6.50 dB 5 ac JJ00 , swam , 🌀 , A3WS , FF1 , 🌃 , 09ac , feac , 98ac LongFast 2025-10-18 17:23:52 UTC View
SIVA (a5fb) +17.762s
After 		-112.0 dBm -17.00 dB 5 3d PDD0 , P1NY LongFast 2025-10-18 17:24:11 UTC View
9

Total Receptions

8

Unique Gateways