Packet #1730536

Database ID:	1730536
Mesh Packet ID:	`0xe1d473bd` Used for correlation across gateways
Timestamp:	2026-04-04 00:49:20 UTC
From Node:	BruchmaLink-1 (LF) 🇧🇬 (BRC1)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	BruchmaLink-1 (LF) 🇧🇬 (BRC1)
Channel:	Silistra
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/2 hops Start: 2, Limit: 2
Relay Node:	`d4` BRC1 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	BruchmaLink-1 (LF) 🇧🇬
Short Name:	BRC1
Node ID:	!b03c98d4
MAC Address:	NM2wPJjU
Hardware:	HELTEC_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:	94 bytes
Gateway:	!b03c98d4
Channel:	Silistra
Payload Type:	NODEINFO_APP
Hop Count:	0 / 2

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: Silistra
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!b03c98d4` Node ID format
`channel_id`	`Silistra`
`packet`	`MeshPacket` (94 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`2956761300` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`94` 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`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1775263759` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`BACKGROUND` Packet priority level	enum
`delayed`	Not set	enum
`channel`	`41` 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: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: Silistra
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!b03c98d4`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	94 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!b03c98d4", "long_name": "BruchmaLink-1 (LF) 🇧🇬", "short_name": "BRC1", "macaddr": "NM2wPJjU", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 2956761300, "to": 4294967295, "channel": 41, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYjAzYzk4ZDQSG0JydWNobWFMaW5rLTEgKExGKSDwn4en8J+HrBoEQlJDMSIGNM2wPJjUKCs4DEIgW9gi1CWGBia0UwGveYHwPL/s1GTBWtClGfexaljgmCFIAQ==", "bitfield": 1 }, "id": 3788796861, "rx_time": 1775263759, "hop_limit": 2, "priority": "BACKGROUND", "hop_start": 2, "relay_node": 212 }, "channel_id": "Silistra", "gateway_id": "!b03c98d4" }, "mesh_packet": { "from": 2956761300, "to": 4294967295, "channel": 41, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYjAzYzk4ZDQSG0JydWNobWFMaW5rLTEgKExGKSDwn4en8J+HrBoEQlJDMSIGNM2wPJjUKCs4DEIgW9gi1CWGBia0UwGveYHwPL/s1GTBWtClGfexaljgmCFIAQ==", "bitfield": 1, "parsed_payload": { "id": "!b03c98d4", "long_name": "BruchmaLink-1 (LF) 🇧🇬", "short_name": "BRC1", "macaddr": "NM2wPJjU", "hw_model": "HELTEC_V3", "role": "CLIENT_BASE", "public_key": "W9gi1CWGBia0UwGveYHwPL/s1GTBWtClGfexaljgmCE=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 3788796861, "rx_time": 1775263759, "hop_limit": 2, "priority": "BACKGROUND", "hop_start": 2, "relay_node": 212 } }

Raw Packet Data (94 bytes)

0a09216230336339386434121b42727563686d614c696e6b2d3120284c462920f09f87a7f09f87ac1a0442524331220634cdb03c98d4282b380c42205bd822d425860626b45301af7981f03cbfecd464c15ad0a519f7b16a58e098214801

Hex Analysis:

Size:	94 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 #1730536 Success

Packet Information

Payload Data

Decoded Data: