Packet #268626

Database ID:	268626
Mesh Packet ID:	`0x84565382` Used for correlation across gateways
Timestamp:	2026-04-10 02:55:19 UTC
From Node:	phillymesh.net-01 (PM01)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	homebase.mesh.sdr.lol (SDRB)
Channel:	LongFast
RSSI:	-97 dBm
SNR:	3.0 dBm
Hop Info:	2/3 hops Start: 3, Limit: 1
Relay Node:	`5f` df5f Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	phillymesh.net-01
Short Name:	PM01
Node ID:	!abf8495c
MAC Address:	JGKr+Elc
Hardware:	TBEAM

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:	82 bytes
Gateway:	!43571a2c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 3

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`	`!43571a2c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (82 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2885175644` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`82` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-97.0` dBm Signal strength at gateway	int32
`rx_snr`	`3.00` dB Signal quality at gateway	float
`rx_time`	`1775789718` 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`	`95` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1775789719.0265095` 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 (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!43571a2c`
Signal Metrics:	RSSI: -97.0 dBm SNR: 3.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	82 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!abf8495c", "long_name": "phillymesh.net-01", "short_name": "PM01", "macaddr": "JGKr+Elc", "hw_model": "TBEAM" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!43571a2c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2885175644, "to": 4294967295, "id": 2220249986, "rx_time": 1775789718, "rx_snr": 3.0, "rx_rssi": -97, "hop_limit": 1, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 95, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921616266383439356312117068696c6c796d6573682e6e65742d30311a04504d303122062462abf8495c280442204a6804423e6f6b7ffdafec8bf784d98b74c8ac0b3af32e54d5a46a440d601e584800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!abf8495c", "long_name": "phillymesh.net-01", "short_name": "PM01", "macaddr": "JGKr+Elc", "hw_model": "TBEAM", "public_key": "SmgEQj5va3/9r+yL94TZi3TIrAs68y5U1aRqRA1gHlg=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (82 bytes)

0a0921616266383439356312117068696c6c796d6573682e6e65742d30311a04504d303122062462abf8495c280442204a6804423e6f6b7ffdafec8bf784d98b74c8ac0b3af32e54d5a46a440d601e584800

Hex Analysis:

Size:	82 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 #268626 Success

Packet Information

Payload Data

Decoded Data: