Packet #28142024 Success

TRACEROUTE_APP packet from DLCr Leganes ☀ (DLCr) to PQP78 (49bf)

1
Total Receptions
1
Unique Gateways
0
Hop Count
12
Payload Bytes
Packet Information
Database ID: 28142024
Mesh Packet ID: 0x27e46c9b
Used for correlation across gateways
Timestamp: 2025-12-16 22:28:44 UTC
From Node: DLCr Leganes ☀ (DLCr)
To Node: PQP78 (49bf)
Success: Processed
Protocol: TRACEROUTE_APP
Port: 70
Gateway: Meshtastic b2b4📡🌐 (b2b4)
Channel: MediumFast
RSSI: -116 dBm
SNR: -14.25 dBm
Hop Info: 0/2 hops
Start: 2, Limit: 2
Relay Node: 28 DLCr
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: TRACEROUTE_APP
Size: 12 bytes
Decoded: Yes
Decoded Data:
Route Information
SNR Towards: -9.25 dB
Combined Traceroute Graph
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Legend & Paths
Nodes
🔄 Router Node
📡 Gateway Node
🚀 Source Node
🎯 Target Node
Connections
RF Link
Gateway Connection
Direct Reception (0 hops)
Packet Paths
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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:12 bytes
Gateway:!433db2b4
Channel:MediumFast
Payload Type:TRACEROUTE_APP
Hop Count:Unknown / 2
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 4 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !433db2b4
Node ID format
channel_id MediumFast
packet MeshPacket (12 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3255758376
Source node ID 		uint32
to 1588414911
Target node ID 		uint32
decoded.portnum 70
TRACEROUTE_APP 		enum
decoded.payload_length 12 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 2
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -116.0 dBm
Signal strength at gateway 		int32
rx_snr -14.25 dB
Signal quality at gateway 		float
rx_time 1765924122
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack True
Acknowledgment 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 40
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765924124.7225325
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Acknowledgment requested
  • ✓ Targeted to specific node
  • ✓ Custom channel: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Want ack: True
Gateway ID: !433db2b4
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -116.0 dBm
SNR: -14.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:TRACEROUTE_APP
Size:12 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "route_nodes": [], "snr_towards": [ -9.25 ], "route_back": [], "snr_back": [], "route_node_names": { "3255758376": "DLCr Leganes ☀ (DLCr)", "1588414911": "PQP78 (49bf)" }, "traceroute_packet": { "packet_data": { "id": 28142024, "timestamp": 1765924124.7225325, "from_node_id": 3255758376, "to_node_id": 1588414911, "portnum": 70, "portnum_name": "TRACEROUTE_APP", "gateway_id": "!433db2b4", "channel_id": "MediumFast", "mesh_packet_id": 669281435, "rssi": -116, "snr": -14.25, "hop_limit": 2, "hop_start": 2, "payload_length": 12, "processed_successfully": 1, "raw_payload": "120adbffffffffffffffff01", "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "rx_time": 1765924122, "pki_encrypted": 0, "next_hop": 0, "relay_node": 40, "tx_after": 0, "timestamp_str": "2025-12-16 22:28:44 UTC", "hop_count": 0, "has_payload": true, "success": 1, "from_node_name": "DLCr Leganes ☀ (DLCr)", "to_node_name": "PQP78 (49bf)", "relay_hex": "28", "relay_candidates": [ { "node_id": 3255758376, "node_name": "DLCr Leganes ☀", "hex_id": "!c20eee28", "short_name": "DLCr", "last_byte": "28" } ], "gateway_name": "Meshtastic b2b4📡🌐 (b2b4)", "gateway_location": { "node_id": 1128116916, "latitude": 40.337408, "longitude": -3.7158912, "altitude": 640, "timestamp": 1766079308.6376185, "timestamp_str": "2025-12-18 17:35:08", "display_name": "Meshtastic b2b4📡🌐", "long_name": "Meshtastic b2b4📡🌐", "short_name": "b2b4", "hw_model": "HELTEC_WSL_V3" } }, "resolve_names": true, "packet_id": 28142024, "from_node_id": 3255758376, "to_node_id": 1588414911, "timestamp": 1765924124.7225325, "gateway_id": "!433db2b4", "raw_payload": "120adbffffffffffffffff01", "hop_limit": 2, "hop_start": 2, "from_node_name": "DLCr Leganes ☀ (DLCr)", "to_node_name": "PQP78 (49bf)", "route_data": { "route_nodes": [], "snr_towards": [ -9.25 ], "route_back": [], "snr_back": [] }, "forward_path": { "path_type": "forward", "node_ids": [ 3255758376 ], "node_names": [ "DLCr Leganes ☀ (DLCr)" ], "snr_values": [ -9.25 ], "hops": [], "is_complete": false, "total_hops": 0 }, "return_path": null, "actual_rf_path": { "path_type": "forward_rf", "node_ids": [ 3255758376, 1588414911 ], "node_names": [ "DLCr Leganes ☀ (DLCr)", "PQP78 (49bf)" ], "snr_values": [ -9.25 ], "hops": [ { "hop_number": 1, "from_node_id": 3255758376, "to_node_id": 1588414911, "from_node_name": "DLCr Leganes ☀ (DLCr)", "to_node_name": "PQP78 (49bf)", "snr": -9.25, "direction": "forward_rf", "is_target_hop": false, "distance_meters": 1317.155079606484, "from_location_timestamp": 1765902710.3817627, "to_location_timestamp": 1765923874.741004, "from_location_age_warning": "from 5.9h ago", "to_location_age_warning": "from 0.1h ago" } ], "is_complete": true, "total_hops": 1 } }, "has_return_path": false, "is_complete": false, "forward_path_display": "DLCr Leganes ☀ (DLCr)", "return_path_display": null, "actual_rf_path_display": "DLCr Leganes ☀ (DLCr) → PQP78 (49bf)", "forward_hops": [], "return_hops": [], "total_forward_distance": null, "total_return_distance": null }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!433db2b4", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3255758376, "to": 1588414911, "id": 669281435, "rx_time": 1765924122, "rx_snr": -14.25, "rx_rssi": -116, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 40, "tx_after": 0, "decoded": { "portnum": 70, "payload": "120adbffffffffffffffff01", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "snr_towards": [ -37 ], "type": "protobuf", "portnum": "TRACEROUTE_APP", "message_class": "RouteDiscovery" } } } }
Raw Packet Data (12 bytes)
120adbffffffffffffffff01
Hex Analysis:
Size:12 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
Meshtastic b2b4📡🌐 (b2b4) Primary 0.000s
Reference 		-116.0 dBm -14.25 dB 0 28 DLCr MediumFast 2025-12-16 22:28:44 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways