Packet #646526 Success

TRACEROUTE_APP packet from Meshtastic 9dfc (9dfc) to EB7FHW 🌐📱 (MQTT). (FJJY)

2
Total Receptions
2
Unique Gateways
0
Hop Count
28
Payload Bytes
Packet Information
Database ID: 646526
Mesh Packet ID: 0x5a1dcf69
Used for correlation across gateways
Timestamp: 2025-06-12 19:48:41 UTC
From Node: Meshtastic 9dfc (9dfc)
To Node: EB7FHW 🌐📱 (MQTT). (FJJY)
Success: Processed
Protocol: TRACEROUTE_APP
Port: 70
Gateway: B1cm🌐📱(MQTT) (B1cm)
Channel: LongFast
RSSI: -37 dBm
SNR: 6.25 dBm
Hop Info: 0/3 hops
Start: 3, Limit: 3
Payload Data
Protocol: TRACEROUTE_APP
Size: 28 bytes
Decoded: Yes
Decoded Data:
Route Information
Route Path: Meshtastic f2ec (f2ec)
Hop Count: 0 hops
Status: Forward complete, Return in progress
SNR Towards: -18.75 dB 9.25 dB
Return Path: B1cm🌐📱(MQTT) (B1cm)
SNR Back: 6.25 dB
Traceroute Steps
Hop From Node To Node Distance SNR (dB) Direction Analysis
1 EB7FHW 🌐📱 (MQTT). (FJJY) Meshtastic f2ec (f2ec) 1.79 km -18.75 dB Origin Hops
2 Meshtastic f2ec (f2ec) Meshtastic 9dfc (9dfc) 1.62 km 9.25 dB Destination Hops
Return Path Steps
Hop From Node To Node Distance SNR (dB) Direction Analysis
1 Meshtastic 9dfc (9dfc) B1cm🌐📱(MQTT) (B1cm) 1.62 km 6.25 dB Return Start Hops
Total Forward Distance
3.41 km
Total Return Distance
1.62 km
Combined Traceroute Graph
Controls: Drag nodes to rearrange • Mouse wheel to zoom • Click and drag background to pan • Hover for details

Building graph...

Legend & Paths
Nodes
🔄 Router Node
📡 Gateway Node
🚀 Source Node
🎯 Target Node
Connections
RF Link
Gateway Connection
Direct Reception (0 hops)
Packet Paths
Loading paths...
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:28 bytes
Gateway:!a0cb0fd4
Channel:LongFast
Payload Type:TRACEROUTE_APP
Hop Count:Unknown / 3
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 !a0cb0fd4
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (28 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 409968124
Source node ID 		uint32
to 2697729524
Target node ID 		uint32
decoded.portnum 70
TRACEROUTE_APP 		enum
decoded.payload_length 28 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -37.0 dBm
Signal strength at gateway 		int32
rx_snr 6.25 dB
Signal quality at gateway 		float
rx_time 1749757700
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 252
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1749757721.169123
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: !a0cb0fd4
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -37.0 dBm
SNR: 6.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:TRACEROUTE_APP
Size:28 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "route_nodes": [ 1128133356 ], "snr_towards": [ -18.75, 9.25 ], "route_back": [ 2697662420 ], "snr_back": [ 6.25 ], "route_node_names": { "2697729524": "EB7FHW 🌐📱 (MQTT). (FJJY)", "2697662420": "B1cm🌐📱(MQTT) (B1cm)", "1128133356": "Meshtastic f2ec (f2ec)", "409968124": "Meshtastic 9dfc (9dfc)" }, "traceroute_packet": { "packet_data": { "id": 646526, "timestamp": 1749757721.169123, "from_node_id": 409968124, "to_node_id": 2697729524, "portnum": 70, "portnum_name": "TRACEROUTE_APP", "gateway_id": "!a0cb0fd4", "channel_id": "LongFast", "mesh_packet_id": 1511903081, "rssi": -37, "snr": 6.25, "hop_limit": 3, "hop_start": 3, "payload_length": 28, "processed_successfully": 1, "raw_payload": "0a04ecf23d43120bb5ffffffffffffffff01251a04d40fcba0220119", "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "rx_time": 1749757700, "pki_encrypted": 0, "next_hop": 0, "relay_node": 252, "tx_after": 0, "timestamp_str": "2025-06-12 19:48:41", "hop_count": 0, "has_payload": true, "success": 1, "from_node_name": "Meshtastic 9dfc (9dfc)", "to_node_name": "EB7FHW 🌐📱 (MQTT). (FJJY)", "gateway_name": "B1cm🌐📱(MQTT) (B1cm)", "gateway_location": { "node_id": 2697662420, "latitude": 38.2520414, "longitude": -2.8933859, "altitude": 570, "timestamp": 1751033944.5074186, "timestamp_str": "2025-06-27 14:19:04", "display_name": " B1cm🌐📱(MQTT)", "long_name": " B1cm🌐📱(MQTT)", "short_name": "B1cm", "hw_model": "HELTEC_V3" } }, "resolve_names": true, "packet_id": 646526, "from_node_id": 409968124, "to_node_id": 2697729524, "timestamp": 1749757721.169123, "gateway_id": "!a0cb0fd4", "raw_payload": "0a04ecf23d43120bb5ffffffffffffffff01251a04d40fcba0220119", "hop_limit": 3, "hop_start": 3, "from_node_name": "Meshtastic 9dfc (9dfc)", "to_node_name": "EB7FHW 🌐📱 (MQTT). (FJJY)", "route_data": { "route_nodes": [ 1128133356 ], "snr_towards": [ -18.75, 9.25 ], "route_back": [ 2697662420 ], "snr_back": [ 6.25 ] }, "forward_path": { "path_type": "forward_with_return", "node_ids": [ 2697729524, 1128133356, 409968124 ], "node_names": [ "EB7FHW 🌐📱 (MQTT). (FJJY)", "Meshtastic f2ec (f2ec)", "Meshtastic 9dfc (9dfc)" ], "snr_values": [ -18.75, 9.25 ], "hops": [ { "hop_number": 1, "from_node_id": 2697729524, "to_node_id": 1128133356, "from_node_name": "EB7FHW 🌐📱 (MQTT). (FJJY)", "to_node_name": "Meshtastic f2ec (f2ec)", "snr": -18.75, "direction": "forward", "is_target_hop": false, "distance_meters": 1787.4638910802746, "from_location_timestamp": 1750882797.9873335, "to_location_timestamp": 1749757661.715094, "from_location_age_warning": "from 1.9w later", "to_location_age_warning": "from 0.0h ago" }, { "hop_number": 2, "from_node_id": 1128133356, "to_node_id": 409968124, "from_node_name": "Meshtastic f2ec (f2ec)", "to_node_name": "Meshtastic 9dfc (9dfc)", "snr": 9.25, "direction": "forward", "is_target_hop": false, "distance_meters": 1617.604359299874, "from_location_timestamp": 1749757661.715094, "to_location_timestamp": 1749757719.4851844, "from_location_age_warning": "from 0.0h ago", "to_location_age_warning": "from 0.0h ago" } ], "is_complete": false, "total_hops": 2 }, "return_path": { "path_type": "return", "node_ids": [ 409968124, 2697662420 ], "node_names": [ "Meshtastic 9dfc (9dfc)", "B1cm🌐📱(MQTT) (B1cm)" ], "snr_values": [ 6.25 ], "hops": [ { "hop_number": 1, "from_node_id": 409968124, "to_node_id": 2697662420, "from_node_name": "Meshtastic 9dfc (9dfc)", "to_node_name": "B1cm🌐📱(MQTT) (B1cm)", "snr": 6.25, "direction": "return", "is_target_hop": false, "distance_meters": 1619.0145045669046, "from_location_timestamp": 1749757719.4851844, "to_location_timestamp": 1749757662.7026887, "from_location_age_warning": "from 0.0h ago", "to_location_age_warning": "from 0.0h ago" } ], "is_complete": false, "total_hops": 1 }, "actual_rf_path": { "path_type": "combined_rf", "node_ids": [ 2697729524, 1128133356, 409968124, 2697662420 ], "node_names": [ "EB7FHW 🌐📱 (MQTT). (FJJY)", "Meshtastic f2ec (f2ec)", "Meshtastic 9dfc (9dfc)", "B1cm🌐📱(MQTT) (B1cm)" ], "snr_values": [ -18.75, 9.25, 6.25 ], "hops": [ { "hop_number": 1, "from_node_id": 2697729524, "to_node_id": 1128133356, "from_node_name": "EB7FHW 🌐📱 (MQTT). (FJJY)", "to_node_name": "Meshtastic f2ec (f2ec)", "snr": -18.75, "direction": "forward_rf", "is_target_hop": false, "distance_meters": 1787.4638910802746, "from_location_timestamp": 1750882797.9873335, "to_location_timestamp": 1749757661.715094, "from_location_age_warning": "from 1.9w later", "to_location_age_warning": "from 0.0h ago" }, { "hop_number": 2, "from_node_id": 1128133356, "to_node_id": 409968124, "from_node_name": "Meshtastic f2ec (f2ec)", "to_node_name": "Meshtastic 9dfc (9dfc)", "snr": 9.25, "direction": "forward_rf", "is_target_hop": false, "distance_meters": 1617.604359299874, "from_location_timestamp": 1749757661.715094, "to_location_timestamp": 1749757719.4851844, "from_location_age_warning": "from 0.0h ago", "to_location_age_warning": "from 0.0h ago" }, { "hop_number": 3, "from_node_id": 409968124, "to_node_id": 2697662420, "from_node_name": "Meshtastic 9dfc (9dfc)", "to_node_name": "B1cm🌐📱(MQTT) (B1cm)", "snr": 6.25, "direction": "return_rf", "is_target_hop": false, "distance_meters": 1619.0145045669046, "from_location_timestamp": 1749757719.4851844, "to_location_timestamp": 1749757662.7026887, "from_location_age_warning": "from 0.0h ago", "to_location_age_warning": "from 0.0h ago" } ], "is_complete": false, "total_hops": 3 } }, "has_return_path": true, "is_complete": true, "forward_path_display": "EB7FHW 🌐📱 (MQTT). (FJJY) → Meshtastic f2ec (f2ec) → Meshtastic 9dfc (9dfc)", "return_path_display": "Meshtastic 9dfc (9dfc) → B1cm🌐📱(MQTT) (B1cm)", "actual_rf_path_display": "EB7FHW 🌐📱 (MQTT). (FJJY) → Meshtastic f2ec (f2ec) → Meshtastic 9dfc (9dfc) → B1cm🌐📱(MQTT) (B1cm)", "forward_hops": [ { "hop_number": 1, "from_node_id": 2697729524, "to_node_id": 1128133356, "from_node_name": "EB7FHW 🌐📱 (MQTT). (FJJY)", "to_node_name": "Meshtastic f2ec (f2ec)", "snr": -18.75, "direction": "forward", "is_target_hop": false, "distance_meters": 1787.4638910802746, "from_location_timestamp": 1750882797.9873335, "to_location_timestamp": 1749757661.715094, "from_location_age_warning": "from 1.9w later", "to_location_age_warning": "from 0.0h ago" }, { "hop_number": 2, "from_node_id": 1128133356, "to_node_id": 409968124, "from_node_name": "Meshtastic f2ec (f2ec)", "to_node_name": "Meshtastic 9dfc (9dfc)", "snr": 9.25, "direction": "forward", "is_target_hop": false, "distance_meters": 1617.604359299874, "from_location_timestamp": 1749757661.715094, "to_location_timestamp": 1749757719.4851844, "from_location_age_warning": "from 0.0h ago", "to_location_age_warning": "from 0.0h ago" } ], "return_hops": [ { "hop_number": 1, "from_node_id": 409968124, "to_node_id": 2697662420, "from_node_name": "Meshtastic 9dfc (9dfc)", "to_node_name": "B1cm🌐📱(MQTT) (B1cm)", "snr": 6.25, "direction": "return", "is_target_hop": false, "distance_meters": 1619.0145045669046, "from_location_timestamp": 1749757719.4851844, "to_location_timestamp": 1749757662.7026887, "from_location_age_warning": "from 0.0h ago", "to_location_age_warning": "from 0.0h ago" } ], "total_forward_distance": 3405.0682503801486, "total_return_distance": 1619.0145045669046 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a0cb0fd4", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 409968124, "to": 2697729524, "id": 1511903081, "rx_time": 1749757700, "rx_snr": 6.25, "rx_rssi": -37, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 252, "tx_after": 0, "decoded": { "portnum": 70, "payload": "0a04ecf23d43120bb5ffffffffffffffff01251a04d40fcba0220119", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "route": [ 1128133356 ], "snr_towards": [ -75, 37 ], "route_back": [ 2697662420 ], "snr_back": [ 25 ], "type": "protobuf", "portnum": "TRACEROUTE_APP", "message_class": "RouteDiscovery" } } } }
Raw Packet Data (28 bytes)
0a04ecf23d43120bb5ffffffffffffffff01251a04d40fcba0220119
Hex Analysis:
Size:28 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 Channel Timestamp Actions
B1cm🌐📱(MQTT) (B1cm) Primary 0.000s
Reference 		-37.0 dBm 6.25 dB 0 LongFast 2025-06-12 19:48:41 Current
EB7FHW 🌐📱 (MQTT). (FJJY) +2.942s
After 		-119.0 dBm -15.00 dB 1 LongFast 2025-06-12 19:48:44 View
2

Total Receptions

2

Unique Gateways