Packet #271835 Success

TRACEROUTE_APP packet from Meshtastic 351a (351a) to Bryn Mawr Base (BRYN)

1
Total Receptions
1
Unique Gateways
3
Hop Count
51
Payload Bytes
Packet Information
Database ID: 271835
Mesh Packet ID: 0xb2f35ac0
Used for correlation across gateways
Timestamp: 2026-04-10 06:52:38 UTC
From Node: Meshtastic 351a (351a)
To Node: Bryn Mawr Base (BRYN)
Success: Processed
Protocol: TRACEROUTE_APP
Port: 70
Gateway: Bryn Mawr Base (BRYN)
Channel: LongFast
RSSI: -109 dBm
SNR: -8.5 dBm
Hop Info: 3/4 hops
Start: 4, Limit: 1
Relay Node: 95 HWTb
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: 51 bytes
Decoded: Yes
Decoded Data:
Route Information
Route Path: Bryn Mawr Base (BRYN) → Meshtastic 351a (351a)
Hop Count: 1 hops
Status: Forward incomplete, Return in progress
SNR Towards: 0.0 dB -19.5 dB
Return Path: Meshtastic 750c (750c) → !433e5774 → Hazelwood Treebeard (HWTb)
SNR Back: 7.0 dB -20.0 dB 6.0 dB
Route Visualization

Loading route map...

Map shows the geographic path if nodes have shared location data.
Traceroute Steps
Hop From Node To Node Distance SNR (dB) Direction Analysis
1 Bryn Mawr Base (BRYN) Bryn Mawr Base (BRYN) 0 m 0.0 dB Origin Hops
2 Bryn Mawr Base (BRYN) Meshtastic 351a (351a) 3.67 km -19.5 dB Relay Hops
3 Meshtastic 351a (351a) Meshtastic 351a (351a) 0 m Unknown Relay Hops
Traceroute incomplete - Final destination not reached
Return Path Steps
Hop From Node To Node Distance SNR (dB) Direction Analysis
1 Meshtastic 351a (351a) Meshtastic 750c (750c) 918 m 7.0 dB Return Start Hops
2 Meshtastic 750c (750c) !433e5774 Unknown -20.0 dB Return Relay Hops
3 !433e5774 Hazelwood Treebeard (HWTb) Unknown 6.0 dB Return End Hops
Total Forward Distance
3.67 km
Total Return Distance
918 m
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:51 bytes
Gateway:!16ced548
Channel:LongFast
Payload Type:TRACEROUTE_APP
Hop Count:3 / 4
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !16ced548
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (51 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 246035738
Source node ID 		uint32
to 382653768
Target node ID 		uint32
decoded.portnum 70
TRACEROUTE_APP 		enum
decoded.payload_length 51 bytes size
hop_limit 1
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -109.0 dBm
Signal strength at gateway 		int32
rx_snr -8.50 dB
Signal quality at gateway 		float
rx_time 1775803958
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 149
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1775803958.5940526
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)
  • ✓ Targeted to specific node
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !16ced548
Signal Metrics: RSSI: -109.0 dBm
SNR: -8.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:TRACEROUTE_APP
Size:51 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "route_nodes": [ 382653768, 246035738 ], "snr_towards": [ 0.0, -19.5 ], "route_back": [ 80049420, 1128159092, 440449685 ], "snr_back": [ 7.0, -20.0, 6.0 ], "route_node_names": { "382653768": "Bryn Mawr Base (BRYN)", "80049420": "Meshtastic 750c (750c)", "1128159092": "!433e5774", "440449685": "Hazelwood Treebeard (HWTb)", "246035738": "Meshtastic 351a (351a)" }, "traceroute_packet": { "packet_data": { "id": 271835, "timestamp": 1775803958.5940526, "from_node_id": 246035738, "to_node_id": 382653768, "portnum": 70, "portnum_name": "TRACEROUTE_APP", "gateway_id": "!16ced548", "channel_id": "LongFast", "mesh_packet_id": 3002292928, "rssi": -109, "snr": -8.5, "hop_limit": 1, "hop_start": 4, "payload_length": 51, "processed_successfully": 1, "raw_payload": "0a0848d5ce161a35aa0e120b00b2ffffffffffffffff011a0c0c75c50474573e4395ba401a220c1cb0ffffffffffffffff0118", "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "rx_time": 1775803958, "pki_encrypted": 0, "next_hop": 0, "relay_node": 149, "tx_after": 0, "timestamp_str": "2026-04-10 06:52:38 UTC", "hop_count": 3, "has_payload": true, "success": 1, "from_node_name": "Meshtastic 351a (351a)", "to_node_name": "Bryn Mawr Base (BRYN)", "relay_hex": "95", "relay_candidates": [ { "node_id": 440449685, "node_name": "Hazelwood Treebeard", "hex_id": "!1a40ba95", "short_name": "HWTb", "last_byte": "95" } ], "gateway_name": "Bryn Mawr Base (BRYN)", "gateway_location": { "node_id": 382653768, "latitude": 40.0228352, "longitude": -75.3205248, "altitude": 130, "timestamp": 1775754584.368795, "timestamp_str": "2026-04-09 17:09:44", "display_name": "Bryn Mawr Base", "long_name": "Bryn Mawr Base", "short_name": "BRYN", "hw_model": "STATION_G2" } }, "resolve_names": true, "packet_id": 271835, "from_node_id": 246035738, "to_node_id": 382653768, "timestamp": 1775803958.5940526, "gateway_id": "!16ced548", "raw_payload": "0a0848d5ce161a35aa0e120b00b2ffffffffffffffff011a0c0c75c50474573e4395ba401a220c1cb0ffffffffffffffff0118", "hop_limit": 1, "hop_start": 4, "from_node_name": "Meshtastic 351a (351a)", "to_node_name": "Bryn Mawr Base (BRYN)", "route_data": { "route_nodes": [ 382653768, 246035738 ], "snr_towards": [ 0.0, -19.5 ], "route_back": [ 80049420, 1128159092, 440449685 ], "snr_back": [ 7.0, -20.0, 6.0 ] }, "forward_path": { "path_type": "forward_with_return", "node_ids": [ 382653768, 382653768, 246035738, 246035738 ], "node_names": [ "Bryn Mawr Base (BRYN)", "Bryn Mawr Base (BRYN)", "Meshtastic 351a (351a)", "Meshtastic 351a (351a)" ], "snr_values": [ 0.0, -19.5 ], "hops": [ { "hop_number": 1, "from_node_id": 382653768, "to_node_id": 382653768, "from_node_name": "Bryn Mawr Base (BRYN)", "to_node_name": "Bryn Mawr Base (BRYN)", "snr": 0.0, "direction": "forward", "is_target_hop": false, "distance_meters": 0.0, "from_location_timestamp": 1775754584.368795, "to_location_timestamp": 1775754584.368795, "from_location_age_warning": "from 13.7h ago", "to_location_age_warning": "from 13.7h ago" }, { "hop_number": 2, "from_node_id": 382653768, "to_node_id": 246035738, "from_node_name": "Bryn Mawr Base (BRYN)", "to_node_name": "Meshtastic 351a (351a)", "snr": -19.5, "direction": "forward", "is_target_hop": false, "distance_meters": 3671.69331657241, "from_location_timestamp": 1775754584.368795, "to_location_timestamp": 1775660058.630278, "from_location_age_warning": "from 13.7h ago", "to_location_age_warning": "from 1.7d ago" }, { "hop_number": 3, "from_node_id": 246035738, "to_node_id": 246035738, "from_node_name": "Meshtastic 351a (351a)", "to_node_name": "Meshtastic 351a (351a)", "snr": null, "direction": "forward", "is_target_hop": false, "distance_meters": 0.0, "from_location_timestamp": 1775660058.630278, "to_location_timestamp": 1775660058.630278, "from_location_age_warning": "from 1.7d ago", "to_location_age_warning": "from 1.7d ago" } ], "is_complete": false, "total_hops": 3 }, "return_path": { "path_type": "return", "node_ids": [ 246035738, 80049420, 1128159092, 440449685 ], "node_names": [ "Meshtastic 351a (351a)", "Meshtastic 750c (750c)", "!433e5774", "Hazelwood Treebeard (HWTb)" ], "snr_values": [ 7.0, -20.0, 6.0 ], "hops": [ { "hop_number": 1, "from_node_id": 246035738, "to_node_id": 80049420, "from_node_name": "Meshtastic 351a (351a)", "to_node_name": "Meshtastic 750c (750c)", "snr": 7.0, "direction": "return", "is_target_hop": false, "distance_meters": 918.0047956665175, "from_location_timestamp": 1775660058.630278, "to_location_timestamp": 1775784280.1859188, "from_location_age_warning": "from 1.7d ago", "to_location_age_warning": "from 5.5h ago" }, { "hop_number": 2, "from_node_id": 80049420, "to_node_id": 1128159092, "from_node_name": "Meshtastic 750c (750c)", "to_node_name": "!433e5774", "snr": -20.0, "direction": "return", "is_target_hop": false, "distance_meters": null, "from_location_timestamp": null, "to_location_timestamp": null, "from_location_age_warning": "No location data available", "to_location_age_warning": "No location data available" }, { "hop_number": 3, "from_node_id": 1128159092, "to_node_id": 440449685, "from_node_name": "!433e5774", "to_node_name": "Hazelwood Treebeard (HWTb)", "snr": 6.0, "direction": "return", "is_target_hop": false, "distance_meters": null, "from_location_timestamp": null, "to_location_timestamp": null, "from_location_age_warning": "No location data available", "to_location_age_warning": "No location data available" } ], "is_complete": false, "total_hops": 3 }, "actual_rf_path": { "path_type": "combined_rf", "node_ids": [ 382653768, 246035738, 80049420, 1128159092, 440449685 ], "node_names": [ "Bryn Mawr Base (BRYN)", "Meshtastic 351a (351a)", "Meshtastic 750c (750c)", "!433e5774", "Hazelwood Treebeard (HWTb)" ], "snr_values": [ 0.0, -19.5, 7.0, -20.0, 6.0 ], "hops": [ { "hop_number": 1, "from_node_id": 382653768, "to_node_id": 382653768, "from_node_name": "Bryn Mawr Base (BRYN)", "to_node_name": "Bryn Mawr Base (BRYN)", "snr": 0.0, "direction": "forward_rf", "is_target_hop": false, "distance_meters": 0.0, "from_location_timestamp": 1775754584.368795, "to_location_timestamp": 1775754584.368795, "from_location_age_warning": "from 13.7h ago", "to_location_age_warning": "from 13.7h ago" }, { "hop_number": 2, "from_node_id": 382653768, "to_node_id": 246035738, "from_node_name": "Bryn Mawr Base (BRYN)", "to_node_name": "Meshtastic 351a (351a)", "snr": -19.5, "direction": "forward_rf", "is_target_hop": false, "distance_meters": 3671.69331657241, "from_location_timestamp": 1775754584.368795, "to_location_timestamp": 1775660058.630278, "from_location_age_warning": "from 13.7h ago", "to_location_age_warning": "from 1.7d ago" }, { "hop_number": 3, "from_node_id": 246035738, "to_node_id": 80049420, "from_node_name": "Meshtastic 351a (351a)", "to_node_name": "Meshtastic 750c (750c)", "snr": 7.0, "direction": "return_rf", "is_target_hop": false, "distance_meters": 918.0047956665175, "from_location_timestamp": 1775660058.630278, "to_location_timestamp": 1775784280.1859188, "from_location_age_warning": "from 1.7d ago", "to_location_age_warning": "from 5.5h ago" }, { "hop_number": 4, "from_node_id": 80049420, "to_node_id": 1128159092, "from_node_name": "Meshtastic 750c (750c)", "to_node_name": "!433e5774", "snr": -20.0, "direction": "return_rf", "is_target_hop": false, "distance_meters": null, "from_location_timestamp": null, "to_location_timestamp": null, "from_location_age_warning": "No location data available", "to_location_age_warning": "No location data available" }, { "hop_number": 5, "from_node_id": 1128159092, "to_node_id": 440449685, "from_node_name": "!433e5774", "to_node_name": "Hazelwood Treebeard (HWTb)", "snr": 6.0, "direction": "return_rf", "is_target_hop": false, "distance_meters": null, "from_location_timestamp": null, "to_location_timestamp": null, "from_location_age_warning": "No location data available", "to_location_age_warning": "No location data available" } ], "is_complete": false, "total_hops": 5 } }, "has_return_path": true, "is_complete": false, "forward_path_display": "Bryn Mawr Base (BRYN) → Bryn Mawr Base (BRYN) → Meshtastic 351a (351a) → Meshtastic 351a (351a)", "return_path_display": "Meshtastic 351a (351a) → Meshtastic 750c (750c) → !433e5774 → Hazelwood Treebeard (HWTb)", "actual_rf_path_display": "Bryn Mawr Base (BRYN) → Meshtastic 351a (351a) → Meshtastic 750c (750c) → !433e5774 → Hazelwood Treebeard (HWTb)", "forward_hops": [ { "hop_number": 1, "from_node_id": 382653768, "to_node_id": 382653768, "from_node_name": "Bryn Mawr Base (BRYN)", "to_node_name": "Bryn Mawr Base (BRYN)", "snr": 0.0, "direction": "forward", "is_target_hop": false, "distance_meters": 0.0, "from_location_timestamp": 1775754584.368795, "to_location_timestamp": 1775754584.368795, "from_location_age_warning": "from 13.7h ago", "to_location_age_warning": "from 13.7h ago" }, { "hop_number": 2, "from_node_id": 382653768, "to_node_id": 246035738, "from_node_name": "Bryn Mawr Base (BRYN)", "to_node_name": "Meshtastic 351a (351a)", "snr": -19.5, "direction": "forward", "is_target_hop": false, "distance_meters": 3671.69331657241, "from_location_timestamp": 1775754584.368795, "to_location_timestamp": 1775660058.630278, "from_location_age_warning": "from 13.7h ago", "to_location_age_warning": "from 1.7d ago" }, { "hop_number": 3, "from_node_id": 246035738, "to_node_id": 246035738, "from_node_name": "Meshtastic 351a (351a)", "to_node_name": "Meshtastic 351a (351a)", "snr": null, "direction": "forward", "is_target_hop": false, "distance_meters": 0.0, "from_location_timestamp": 1775660058.630278, "to_location_timestamp": 1775660058.630278, "from_location_age_warning": "from 1.7d ago", "to_location_age_warning": "from 1.7d ago" } ], "return_hops": [ { "hop_number": 1, "from_node_id": 246035738, "to_node_id": 80049420, "from_node_name": "Meshtastic 351a (351a)", "to_node_name": "Meshtastic 750c (750c)", "snr": 7.0, "direction": "return", "is_target_hop": false, "distance_meters": 918.0047956665175, "from_location_timestamp": 1775660058.630278, "to_location_timestamp": 1775784280.1859188, "from_location_age_warning": "from 1.7d ago", "to_location_age_warning": "from 5.5h ago" }, { "hop_number": 2, "from_node_id": 80049420, "to_node_id": 1128159092, "from_node_name": "Meshtastic 750c (750c)", "to_node_name": "!433e5774", "snr": -20.0, "direction": "return", "is_target_hop": false, "distance_meters": null, "from_location_timestamp": null, "to_location_timestamp": null, "from_location_age_warning": "No location data available", "to_location_age_warning": "No location data available" }, { "hop_number": 3, "from_node_id": 1128159092, "to_node_id": 440449685, "from_node_name": "!433e5774", "to_node_name": "Hazelwood Treebeard (HWTb)", "snr": 6.0, "direction": "return", "is_target_hop": false, "distance_meters": null, "from_location_timestamp": null, "to_location_timestamp": null, "from_location_age_warning": "No location data available", "to_location_age_warning": "No location data available" } ], "total_forward_distance": 3671.69331657241, "total_return_distance": 918.0047956665175 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!16ced548", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 246035738, "to": 382653768, "id": 3002292928, "rx_time": 1775803958, "rx_snr": -8.5, "rx_rssi": -109, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 149, "tx_after": 0, "decoded": { "portnum": 70, "payload": "0a0848d5ce161a35aa0e120b00b2ffffffffffffffff011a0c0c75c50474573e4395ba401a220c1cb0ffffffffffffffff0118", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "route": [ 382653768, 246035738 ], "snr_towards": [ 0, -78 ], "route_back": [ 80049420, 1128159092, 440449685 ], "snr_back": [ 28, -80, 24 ], "type": "protobuf", "portnum": "TRACEROUTE_APP", "message_class": "RouteDiscovery" } } } }
Raw Packet Data (51 bytes)
0a0848d5ce161a35aa0e120b00b2ffffffffffffffff011a0c0c75c50474573e4395ba401a220c1cb0ffffffffffffffff0118
Hex Analysis:
Size:51 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
Bryn Mawr Base (BRYN) Primary 0.000s
Reference 		-109.0 dBm -8.50 dB 3 95 HWTb LongFast 2026-04-10 06:52:38 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways