Packet #28303082 Success

NODEINFO_APP packet from Sierra norte Madrid ⛰️🗼🌞 (SNM) to SkG@Tracker 📱 (SkGT)

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	28303082
Mesh Packet ID:	`0x87a53a27` Used for correlation across gateways
Timestamp:	2025-12-17 16:45:46 UTC
From Node:	Sierra norte Madrid ⛰️🗼🌞 (SNM)
To Node:	SkG@Tracker 📱 (SkGT)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	ETH Maverick (ET01)
Channel:	MediumFast
RSSI:	-107 dBm
SNR:	-10.5 dBm
Hop Info:	2/4 hops Start: 4, Limit: 2
Relay Node:	`61` TO1 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Payload Data

Protocol: NODEINFO_APP

Size: 98 bytes

Decoded: Yes

Decoded Data:

Long Name:	Sierra norte Madrid ⛰️🗼🌞
Short Name:	SNM
Node ID:	!43562884
MAC Address:	SMpDViiE
Hardware:	HELTEC_WSL_V3

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:	98 bytes
Gateway:	!2e061241
Channel:	MediumFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 4

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!2e061241` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (98 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1129719940` Source node ID	uint32
`to`	`1555771960` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`98` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-107.0` dBm Signal strength at gateway	int32
`rx_snr`	`-10.50` dB Signal quality at gateway	float
`rx_time`	`1765989945` 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`	`97` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765989946.8025846` 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
✓ Custom channel: MediumFast
✓ Gateway node ID tracked

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!2e061241`
Signal Metrics:	RSSI: -107.0 dBm SNR: -10.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	98 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!43562884", "long_name": "Sierra norte Madrid ⛰️🗼🌞", "short_name": "SNM", "macaddr": "SMpDViiE", "hw_model": "HELTEC_WSL_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!2e061241", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1129719940, "to": 1555771960, "id": 2275752487, "rx_time": 1765989945, "rx_snr": -10.5, "rx_rssi": -107, "hop_limit": 2, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 97, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092134333536323838341222536965727261206e6f727465204d616472696420e29bb0efb88ff09f97bcf09f8c9e1a03534e4d220648ca43562884282c380242207e52862e72b32f44af42b528084eefaa0bee58c0c7cbf44107a3ced8bae4c945", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!43562884", "long_name": "Sierra norte Madrid ⛰️🗼🌞", "short_name": "SNM", "macaddr": "SMpDViiE", "hw_model": "HELTEC_WSL_V3", "role": "ROUTER", "public_key": "flKGLnKzL0SvQrUoCE7vqgvuWMDHy/RBB6PO2LrkyUU=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (98 bytes)

0a092134333536323838341222536965727261206e6f727465204d616472696420e29bb0efb88ff09f97bcf09f8c9e1a03534e4d220648ca43562884282c380242207e52862e72b32f44af42b528084eefaa0bee58c0c7cbf44107a3ced8bae4c945

Hex Analysis:

Size:	98 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	Relay	Channel	Timestamp	Actions
ETH Maverick (ET01) Primary	0.000s Reference	-107.0 dBm	-10.50 dB	2	`61` TO1	MediumFast	2025-12-17 16:45:46 UTC	Current
Venturada2 🗼🌞 (Vb2)	-1.576s Before	-74.0 dBm	11.00 dB	1	`10` Vbt	MediumFast	2025-12-17 16:45:45 UTC	View
[samsepi0l] 📡🌐 (tlg0)	-1.201s Before	-97.0 dBm	-4.00 dB	0	-	MediumFast	2025-12-17 16:45:45 UTC	View
Rodashtastic🗼🌐 (RDSt)	-1.167s Before	-118.0 dBm	-8.50 dB	1	`e8` GRN1	MediumFast	2025-12-17 16:45:45 UTC	View
Ocumare Norte🗼🌐 (RRN)	-1.082s Before	-106.0 dBm	-12.75 dB	2	`b0` Vbm , Vb2	MediumFast	2025-12-17 16:45:45 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	-1.009s Before	-79.0 dBm	8.00 dB	2	`b0` Vbm , Vb2	MediumFast	2025-12-17 16:45:45 UTC	View
JAGO1_Cañaveral (JAGO)	-0.976s Before	-24.0 dBm	10.50 dB	2	`28` JAG3	MediumFast	2025-12-17 16:45:45 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	-0.899s Before	-107.0 dBm	-8.75 dB	0	-	MediumFast	2025-12-17 16:45:45 UTC	View
Villalbilla02 (VBV2)	-0.858s Before	-119.0 dBm	-10.25 dB	2	`b0` Vb2	MediumFast	2025-12-17 16:45:45 UTC	View
Meshtastic 1760 (1760)	-0.752s Before	-130.0 dBm	-10.75 dB	2	`b0` Vb2	MediumFast	2025-12-17 16:45:46 UTC	View
Karabanchel_Baldur (KarB)	-0.620s Before	-94.0 dBm	0.50 dB	2	`1c` 🐷	MediumFast	2025-12-17 16:45:46 UTC	View
Eagle’s Nest (EAGL)	-0.561s Before	-107.0 dBm	3.00 dB	2	`a4` Raq1	MediumFast	2025-12-17 16:45:46 UTC	View
🤖 Nicolas Cage 🌐 (Cage)	-0.392s Before	-94.0 dBm	9.75 dB	2	`1c` 🐷	MediumFast	2025-12-17 16:45:46 UTC	View
Fenix (FENX)	-0.309s Before	-118.0 dBm	-11.50 dB	2	`1c` 🐷	MediumFast	2025-12-17 16:45:46 UTC	View
Meshtastic 18a4 (18a4)	-0.306s Before	Unknown	Unknown	3	`60` 1760	MediumFast	2025-12-17 16:45:46 UTC	View
tizon (Sylv)	-0.304s Before	-107.0 dBm	0.75 dB	2	`1c` 🐷	MediumFast	2025-12-17 16:45:46 UTC	View
Getafe ☀️ (GTF)	-0.301s Before	-124.0 dBm	-14.25 dB	2	`1c` 🐷	MediumFast	2025-12-17 16:45:46 UTC	View
Aldinra_1640_🗼_🌐 (AldB)	+0.267s After	-102.0 dBm	4.75 dB	3	`60` 1760	MediumFast	2025-12-17 16:45:47 UTC	View
Mec Rocket Meco (MRM)	+0.560s After	-111.0 dBm	-11.50 dB	3	`c0` sdAh	MediumFast	2025-12-17 16:45:47 UTC	View
Meshtastic b2b4📡🌐 (b2b4)	+1.085s After	-115.0 dBm	-12.50 dB	3	`88` KarB	MediumFast	2025-12-17 16:45:47 UTC	View
Quass001 ☄️ (Q001)	+1.958s After	-48.0 dBm	10.00 dB	2	`3a` Q005	MediumFast	2025-12-17 16:45:48 UTC	View
P3 iGate 🏠🌐 (P3N2)	+2.175s After	-37.0 dBm	10.75 dB	3	`25` P3N1	MediumFast	2025-12-17 16:45:48 UTC	View

22

Total Receptions

22

Unique Gateways