Packet #203029 Success

TEXT_MESSAGE_APP packet from IronGiant (IRON) to !ffffffff

1
Total Receptions
1
Unique Gateways
5
Hop Count
53
Payload Bytes
Packet Information
Database ID: 203029
Mesh Packet ID: 0xcf4fd6bf
Used for correlation across gateways
Timestamp: 2026-04-25 12:17:12 UTC
From Node: IronGiant (IRON)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TEXT_MESSAGE_APP
Port: 1
Gateway: MIB Node 0 - nepamesh (MIB0)
Channel: LongFast
RSSI: -98 dBm
SNR: -9.0 dBm
Hop Info: 5/5 hops
Start: 5, Limit: 0
Relay Node: d7 bbd7 , SVMI , 75d7 , VOLT , c8d7 , 7cd7 , NVVV
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: 53 bytes
Decoded: Yes
Text Content:
Good morning all from the York hamfest. Come join us!
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:53 bytes
Gateway:!b2a72e48
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

FieldValue
gateway_id !b2a72e48
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (53 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

FieldValueType
from 1236696288
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum TEXT_MESSAGE_APP
TEXT_MESSAGE_APP 		enum
decoded.payload_length 53 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 -98.0 dBm
Signal strength at gateway 		int32
rx_snr -9.00 dB
Signal quality at gateway 		float
rx_time 1777111385
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 215
Relay node ID 		uint32
tx_after Not set uint32
timestamp Not set 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: !b2a72e48
Signal Metrics: RSSI: -98.0 dBm
SNR: -9.00 dB
Complete Protobuf Decode (JSON)
{ "service_envelope": { "packet": { "from": 1236696288, "to": 4294967295, "decoded": { "portnum": "TEXT_MESSAGE_APP", "payload": "R29vZCBtb3JuaW5nIGFsbCBmcm9tIHRoZSBZb3JrIGhhbWZlc3QuIENvbWUgam9pbiB1cyE=", "bitfield": 0 }, "id": 3478116031, "rx_time": 1777111385, "rx_snr": -9.0, "rx_rssi": -98, "hop_start": 5, "relay_node": 215, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!b2a72e48" }, "mesh_packet": { "from": 1236696288, "to": 4294967295, "decoded": { "portnum": "TEXT_MESSAGE_APP", "payload": "R29vZCBtb3JuaW5nIGFsbCBmcm9tIHRoZSBZb3JrIGhhbWZlc3QuIENvbWUgam9pbiB1cyE=", "bitfield": 0, "parsed_payload": { "text": "Good morning all from the York hamfest. Come join us!", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } }, "id": 3478116031, "rx_time": 1777111385, "rx_snr": -9.0, "rx_rssi": -98, "hop_start": 5, "relay_node": 215, "transport_mechanism": "TRANSPORT_LORA" } }
Raw Packet Data (53 bytes)
476f6f64206d6f726e696e6720616c6c2066726f6d2074686520596f726b2068616d666573742e20436f6d65206a6f696e20757321
Hex Analysis:
Size:53 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
Gateway Time Offset RSSI SNR Hops Relay Channel Timestamp Actions
MIB Node 0 - nepamesh (MIB0) Primary 0.000s
Reference 		-98.0 dBm -9.00 dB 5 d7 bbd7 , SVMI , 75d7 , VOLT , c8d7 , 7cd7 , NVVV LongFast 2026-04-25 12:17:12 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways