Packet #28283682 Success

TRACEROUTE_APP packet from Castalla Castillo (CAST) to Castalla Vilches CHT01 (CHT1)

1
Total Receptions
1
Unique Gateways
0
Hop Count
3
Payload Bytes
Packet Information
Database ID: 28283682
Mesh Packet ID: 0x3542dff0
Used for correlation across gateways
Timestamp: 2025-12-17 14:48:55 UTC
From Node: Castalla Castillo (CAST)
To Node: Castalla Vilches CHT01 (CHT1)
Success: Processed
Protocol: TRACEROUTE_APP
Port: 70
Gateway: Castalla Vilches CHT01 (CHT1)
Channel: LongFast
RSSI: -99 dBm
SNR: -7.0 dBm
Hop Info: 0/2 hops
Start: 2, Limit: 2
Relay Node: 94 CAST
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: 3 bytes
Decoded: Yes
Decoded Data:
Route Information
SNR Towards: 3.25 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:3 bytes
Gateway:!a0cbbb68
Channel:LongFast
Payload Type:TRACEROUTE_APP
Hop Count:Unknown / 2
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 3 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !a0cbbb68
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (3 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 874614420
Source node ID 		uint32
to 2697706344
Target node ID 		uint32
decoded.portnum 70
TRACEROUTE_APP 		enum
decoded.payload_length 3 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 -99.0 dBm
Signal strength at gateway 		int32
rx_snr -7.00 dB
Signal quality at gateway 		float
rx_time 1765958569
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 104
Next hop node ID 		uint32
relay_node 148
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765982935.512783
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
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Want ack: True
Gateway ID: !a0cbbb68
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -99.0 dBm
SNR: -7.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:TRACEROUTE_APP
Size:3 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "route_nodes": [], "snr_towards": [ 3.25 ], "route_back": [], "snr_back": [], "route_node_names": { "2697706344": "Castalla Vilches CHT01 (CHT1)", "874614420": "Castalla Castillo (CAST)" }, "traceroute_packet": { "packet_data": { "id": 28283682, "timestamp": 1765982935.512783, "from_node_id": 874614420, "to_node_id": 2697706344, "portnum": 70, "portnum_name": "TRACEROUTE_APP", "gateway_id": "!a0cbbb68", "channel_id": "LongFast", "mesh_packet_id": 893575152, "rssi": -99, "snr": -7.0, "hop_limit": 2, "hop_start": 2, "payload_length": 3, "processed_successfully": 1, "raw_payload": "12010d", "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "rx_time": 1765958569, "pki_encrypted": 0, "next_hop": 104, "relay_node": 148, "tx_after": 0, "timestamp_str": "2025-12-17 14:48:55 UTC", "hop_count": 0, "has_payload": true, "success": 1, "from_node_name": "Castalla Castillo (CAST)", "to_node_name": "Castalla Vilches CHT01 (CHT1)", "relay_hex": "94", "relay_candidates": [ { "node_id": 874614420, "node_name": "Castalla Castillo", "hex_id": "!34218e94", "short_name": "CAST", "last_byte": "94" } ], "gateway_name": "Castalla Vilches CHT01 (CHT1)", "gateway_location": { "node_id": 2697706344, "latitude": 38.59456, "longitude": -0.6680576, "altitude": 678, "timestamp": 1766027963.7661579, "timestamp_str": "2025-12-18 03:19:23", "display_name": "Castalla Vilches CHT01", "long_name": "Castalla Vilches CHT01", "short_name": "CHT1", "hw_model": "HELTEC_WIRELESS_PAPER" } }, "resolve_names": true, "packet_id": 28283682, "from_node_id": 874614420, "to_node_id": 2697706344, "timestamp": 1765982935.512783, "gateway_id": "!a0cbbb68", "raw_payload": "12010d", "hop_limit": 2, "hop_start": 2, "from_node_name": "Castalla Castillo (CAST)", "to_node_name": "Castalla Vilches CHT01 (CHT1)", "route_data": { "route_nodes": [], "snr_towards": [ 3.25 ], "route_back": [], "snr_back": [] }, "forward_path": { "path_type": "forward", "node_ids": [ 874614420 ], "node_names": [ "Castalla Castillo (CAST)" ], "snr_values": [ 3.25 ], "hops": [], "is_complete": false, "total_hops": 0 }, "return_path": null, "actual_rf_path": { "path_type": "forward_rf", "node_ids": [ 874614420, 2697706344 ], "node_names": [ "Castalla Castillo (CAST)", "Castalla Vilches CHT01 (CHT1)" ], "snr_values": [ 3.25 ], "hops": [ { "hop_number": 1, "from_node_id": 874614420, "to_node_id": 2697706344, "from_node_name": "Castalla Castillo (CAST)", "to_node_name": "Castalla Vilches CHT01 (CHT1)", "snr": 3.25, "direction": "forward_rf", "is_target_hop": false, "distance_meters": 560.2827257941258, "from_location_timestamp": 1765876238.1154878, "to_location_timestamp": 1765907837.2435963, "from_location_age_warning": "from 1.2d ago", "to_location_age_warning": "from 20.9h ago" } ], "is_complete": true, "total_hops": 1 } }, "has_return_path": false, "is_complete": false, "forward_path_display": "Castalla Castillo (CAST)", "return_path_display": null, "actual_rf_path_display": "Castalla Castillo (CAST) → Castalla Vilches CHT01 (CHT1)", "forward_hops": [], "return_hops": [], "total_forward_distance": null, "total_return_distance": null }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a0cbbb68", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 874614420, "to": 2697706344, "id": 893575152, "rx_time": 1765958569, "rx_snr": -7.0, "rx_rssi": -99, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 104, "relay_node": 148, "tx_after": 0, "decoded": { "portnum": 70, "payload": "12010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "snr_towards": [ 13 ], "type": "protobuf", "portnum": "TRACEROUTE_APP", "message_class": "RouteDiscovery" } } } }
Raw Packet Data (3 bytes)
12010d
Hex Analysis:
Size:3 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
Castalla Vilches CHT01 (CHT1) Primary 0.000s
Reference 		-99.0 dBm -7.00 dB 0 94 CAST LongFast 2025-12-17 14:48:55 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways