Packet #229056

Database ID:	229056
Mesh Packet ID:	`0x18088112` Utilizado para correlação entre gateways
Tempo:	2025-10-07 14:04:42 UTC
Do Node:	BARCELOS-GT-868🇵🇹 (BIG3)
Para o Node:	PNorte_BRG-GT-8 (PNrt)
Successo:	Processado
Protocolo:	TRACEROUTE_APP Port: 70

Gateway:	ℹ️(Meshtastic.pt)-GW-868🇵🇹 (BIG4)
Canal:	LongFast
RSSI:	-120 dBm
SNR:	-7.5 dBm
Info Hop:	0/2 hops Início: 2, Limite: 2

SNR para:	-18.5 dB

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:	!ba61d134
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

Field	Value
`gateway_id`	`!ba61d134` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (12 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`268920437` Source node ID	uint32
`to`	`1999796754` 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`	`-120.0` dBm Signal strength at gateway	int32
`rx_snr`	`-7.50` dB Signal quality at gateway	float
`rx_time`	`1759842280` 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`	`117` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1759842282.1683908` 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:	`!ba61d134`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -120.0 dBm SNR: -7.50 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": [ -18.5 ], "route_back": [], "snr_back": [], "route_node_names": { "1999796754": "PNorte_BRG-GT-8 (PNrt)", "268920437": "BARCELOS-GT-868🇵🇹 (BIG3)" }, "traceroute_packet": { "packet_data": { "id": 229056, "timestamp": 1759842282.1683908, "from_node_id": 268920437, "to_node_id": 1999796754, "portnum": 70, "portnum_name": "TRACEROUTE_APP", "gateway_id": "!ba61d134", "channel_id": "LongFast", "mesh_packet_id": 403210514, "rssi": -120, "snr": -7.5, "hop_limit": 2, "hop_start": 2, "payload_length": 12, "processed_successfully": 1, "raw_payload": "120ab6ffffffffffffffff01", "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "rx_time": 1759842280, "pki_encrypted": 0, "next_hop": 0, "relay_node": 117, "tx_after": 0, "timestamp_str": "2025-10-07 14:04:42", "hop_count": 0, "has_payload": true, "success": 1, "from_node_name": "BARCELOS-GT-868🇵🇹 (BIG3)", "to_node_name": "PNorte_BRG-GT-8 (PNrt)", "gateway_name": "ℹ️(Meshtastic.pt)-GW-868🇵🇹 (BIG4)", "gateway_location": { "node_id": 3126972724, "latitude": 41.537737, "longitude": -8.741698, "altitude": 49, "timestamp": 1761075747.0027575, "timestamp_str": "2025-10-21 20:42:27", "display_name": "ℹ️(Meshtastic.pt)-GW-868🇵🇹", "long_name": "ℹ️(Meshtastic.pt)-GW-868🇵🇹", "short_name": "BIG4", "hw_model": "HELTEC_V3" } }, "resolve_names": true, "packet_id": 229056, "from_node_id": 268920437, "to_node_id": 1999796754, "timestamp": 1759842282.1683908, "gateway_id": "!ba61d134", "raw_payload": "120ab6ffffffffffffffff01", "hop_limit": 2, "hop_start": 2, "from_node_name": "BARCELOS-GT-868🇵🇹 (BIG3)", "to_node_name": "PNorte_BRG-GT-8 (PNrt)", "route_data": { "route_nodes": [], "snr_towards": [ -18.5 ], "route_back": [], "snr_back": [] }, "forward_path": { "path_type": "forward", "node_ids": [ 268920437 ], "node_names": [ "BARCELOS-GT-868🇵🇹 (BIG3)" ], "snr_values": [ -18.5 ], "hops": [], "is_complete": false, "total_hops": 0 }, "return_path": null, "actual_rf_path": { "path_type": "forward_rf", "node_ids": [ 268920437, 1999796754 ], "node_names": [ "BARCELOS-GT-868🇵🇹 (BIG3)", "PNorte_BRG-GT-8 (PNrt)" ], "snr_values": [ -18.5 ], "hops": [ { "hop_number": 1, "from_node_id": 268920437, "to_node_id": 1999796754, "from_node_name": "BARCELOS-GT-868🇵🇹 (BIG3)", "to_node_name": "PNorte_BRG-GT-8 (PNrt)", "snr": -18.5, "direction": "forward_rf", "is_target_hop": false, "distance_meters": 19969.128955359854, "from_location_timestamp": 1759822531.0739834, "to_location_timestamp": 1759791284.0891712, "from_location_age_warning": "from 5.5h ago", "to_location_age_warning": "from 14.2h ago" } ], "is_complete": true, "total_hops": 1 } }, "has_return_path": false, "is_complete": false, "forward_path_display": "BARCELOS-GT-868🇵🇹 (BIG3)", "return_path_display": null, "actual_rf_path_display": "BARCELOS-GT-868🇵🇹 (BIG3) → PNorte_BRG-GT-8 (PNrt)", "forward_hops": [], "return_hops": [], "total_forward_distance": null, "total_return_distance": null }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!ba61d134", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 268920437, "to": 1999796754, "id": 403210514, "rx_time": 1759842280, "rx_snr": -7.5, "rx_rssi": -120, "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": 117, "tx_after": 0, "decoded": { "portnum": 70, "payload": "120ab6ffffffffffffffff01", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "snr_towards": [ -74 ], "type": "protobuf", "portnum": "TRACEROUTE_APP", "message_class": "RouteDiscovery" } } } }

Raw Packet Data (12 bytes)

120ab6ffffffffffffffff01

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.

Gateway	Time Offset	RSSI	SNR	Hops	Channel	Timestamp	Actions
ℹ️(Meshtastic.pt)-GW-868🇵🇹 (BIG4) Primary	0.000s Reference	-120.0 dBm	-7.50 dB	0	LongFast	2025-10-07 14:04:42	Current
Prewashed22-CL-8 (PW22)	+2.690s After	-90.0 dBm	10.50 dB	2	LongFast	2025-10-07 14:04:44	View
Couto-CL-8🏡 (SOL3)	+96.030s After	-105.0 dBm	-21.25 dB	1	LongFast	2025-10-07 14:06:18	View

Pacote #229056 Successo

Informação de Pacotes

Conteúdo dados

Dados:

Info. da Rota

Combined Traceroute Graph

Legend & Paths

Nodes

Connections

Packet Paths