Packet #3107853

Database ID:	3107853
Mesh Packet ID:	`0xaf346760` Used for correlation across gateways
Timestamp:	2026-04-03 18:42:04 UTC
From Node:	CP Lily-TB 2c18 (2c18)
To Node:	Meshtastic ca70 (ca70)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	AvantGuard (avg1)
Channel:	LongFast
RSSI:	-118 dBm
SNR:	-18.25 dBm
Hop Info:	2/2 hops Start: 2, Limit: 0
Relay Node:	`d4` Last byte of the last hop that relayed this packet

Long Name:	CP Lily-TB 2c18
Short Name:	2c18
Node ID:	!435a2c18
MAC Address:	SMpDWiwY
Hardware:	LILYGO_TBEAM_S3_CORE

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:	80 bytes
Gateway:	!1f48b02a
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 2

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

Field	Value
`gateway_id`	`!1f48b02a` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (80 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`1129983000` Source node ID	uint32
`to`	`2471283312` Target node ID	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`80` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-118.0` dBm Signal strength at gateway	int32
`rx_snr`	`-18.25` dB Signal quality at gateway	float
`rx_time`	`1775241723` 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`	`8` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`212` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	Not set	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 (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!1f48b02a`
Signal Metrics:	RSSI: -118.0 dBm SNR: -18.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	80 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!435a2c18", "long_name": "CP Lily-TB 2c18", "short_name": "2c18", "macaddr": "SMpDWiwY", "hw_model": "LILYGO_TBEAM_S3_CORE" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 1129983000, "to": 2471283312, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNDM1YTJjMTgSD0NQIExpbHktVEIgMmMxOBoEMmMxOCIGSMpDWiwYKAxCIIzc5Ie4CXZ2ekepourKJaMkkR08jagnCZEsHyJQBeh/SAA=", "request_id": 913691443, "bitfield": 1 }, "id": 2939447136, "rx_time": 1775241723, "rx_snr": -18.25, "rx_rssi": -118, "hop_start": 2, "relay_node": 212, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!1f48b02a" }, "mesh_packet": { "from": 1129983000, "to": 2471283312, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNDM1YTJjMTgSD0NQIExpbHktVEIgMmMxOBoEMmMxOCIGSMpDWiwYKAxCIIzc5Ie4CXZ2ekepourKJaMkkR08jagnCZEsHyJQBeh/SAA=", "request_id": 913691443, "bitfield": 1, "parsed_payload": { "id": "!435a2c18", "long_name": "CP Lily-TB 2c18", "short_name": "2c18", "macaddr": "SMpDWiwY", "hw_model": "LILYGO_TBEAM_S3_CORE", "public_key": "jNzkh7gJdnZ6R6mi6soloySRHTyNqCcJkSwfIlAF6H8=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 2939447136, "rx_time": 1775241723, "rx_snr": -18.25, "rx_rssi": -118, "hop_start": 2, "relay_node": 212, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (80 bytes)

0a09213433356132633138120f4350204c696c792d544220326331381a0432633138220648ca435a2c18280c42208cdce487b80976767a47a9a2eaca25a324911d3c8da82709912c1f225005e87f4800

Hex Analysis:

Size:	80 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.

Packet #3107853 Success

Packet Information

Payload Data

Decoded Data: