Packet #2469351

Database ID:	2469351
Mesh Packet ID:	`0x7ab1fa22` Used for correlation across gateways
Timestamp:	2025-07-01 10:44:54 UTC
From Node:	CARD 868MHZ FRAN PORTABLE 🔥🕸📡 (CARD)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Alex (AMG)
Channel:	LongFast
RSSI:	-65 dBm
SNR:	5.5 dBm
Hop Info:	1/7 hops Start: 7, Limit: 6

Long Name:	CARD 868MHZ FRAN PORTABLE 🔥🕸📡
Short Name:	CARD
Node ID:	!2b25400b
MAC Address:	2QcrJUAL
Hardware:	TRACKER_T1000_E

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:	105 bytes
Gateway:	!433ce0c8
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!433ce0c8` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (105 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`723861515` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`105` bytes	size
`hop_limit`	`6` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-65.0` dBm Signal strength at gateway	int32
`rx_snr`	`5.50` dB Signal quality at gateway	float
`rx_time`	`1751366693` 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`	`120` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1751366694.1499898` Unix timestamp	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!433ce0c8`
Signal Metrics:	RSSI: -65.0 dBm SNR: 5.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	105 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!2b25400b", "long_name": "CARD 868MHZ FRAN PORTABLE 🔥🕸📡", "short_name": "CARD", "macaddr": "2QcrJUAL", "hw_model": "TRACKER_T1000_E" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!433ce0c8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 723861515, "to": 4294967295, "id": 2058484258, "rx_time": 1751366693, "rx_snr": 5.5, "rx_rssi": -65, "hop_limit": 6, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 120, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213262323534303062122643415244203836384d485a204652414e20504f525441424c4520f09f94a5f09f95b8f09f93a11a04434152442206d9072b25400b28473805422087c9cd632da2797942a5b2816efc99d828a4d75b4031d3e60fb24f2741b4c4054801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!2b25400b", "long_name": "CARD 868MHZ FRAN PORTABLE 🔥🕸📡", "short_name": "CARD", "macaddr": "2QcrJUAL", "hw_model": "TRACKER_T1000_E", "role": "TRACKER", "public_key": "h8nNYy2ieXlCpbKBbvyZ2Cik11tAMdPmD7JPJ0G0xAU=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (105 bytes)

0a09213262323534303062122643415244203836384d485a204652414e20504f525441424c4520f09f94a5f09f95b8f09f93a11a04434152442206d9072b25400b28473805422087c9cd632da2797942a5b2816efc99d828a4d75b4031d3e60fb24f2741b4c4054801

Hex Analysis:

Size:	105 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 #2469351 Success

Packet Information

Payload Data

Decoded Data: