Packet #157283

Database ID:	157283
Mesh Packet ID:	`0xe1b557b6` Used for correlation across gateways
Timestamp:	2026-04-04 23:21:45 UTC
From Node:	!a1cd414c (414c)
To Node:	Kara C (Kara)
Success:	Failed
Protocol:	NODEINFO_APP Port: 4

Gateway:	KS_Local_(hdmesh.org) (KSLN)
Channel:	LongMod
RSSI:	-41 dBm
SNR:	8.0 dBm
Hop Info:	0/6 hops Start: 6, Limit: 6
Relay Node:	`4c` 414c Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	KS_Tehachapi_Mtn_1W
Short Name:	KST1
Node ID:	!a1cd414c
MAC Address:	4HKhzUFM
Hardware:	122

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:	84 bytes
Gateway:	!69850b80
Channel:	LongMod
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 6

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!69850b80` Node ID format
`channel_id`	`LongMod`
`packet`	`MeshPacket` (84 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2714583372` Source node ID	uint32
`to`	`2695202042` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`84` bytes	size
`hop_limit`	`6` Remaining hops allowed	uint32
`hop_start`	`6` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-41.0` dBm Signal strength at gateway	int32
`rx_snr`	`8.00` dB Signal quality at gateway	float
`rx_time`	`1775344904` 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`	`76` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1775344905.8709533` 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: LongMod
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!69850b80`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -41.0 dBm SNR: 8.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	84 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!a1cd414c", "long_name": "KS_Tehachapi_Mtn_1W", "short_name": "KST1", "macaddr": "4HKhzUFM", "hw_model": 122 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!69850b80", "channel_id": "LongMod", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2714583372, "to": 2695202042, "id": 3786758070, "rx_time": 1775344904, "rx_snr": 8.0, "rx_rssi": -41, "hop_limit": 6, "hop_start": 6, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 76, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921613163643431346312134b535f5465686163686170695f4d746e5f31571a044b5354312206e072a1cd414c287a42206e2bd9600bcaf23f51c18574cc7eef0083dd00304d5b2535cda479197599d8654800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!a1cd414c", "long_name": "KS_Tehachapi_Mtn_1W", "short_name": "KST1", "macaddr": "4HKhzUFM", "hw_model": 122, "public_key": "bivZYAvK8j9RwYV0zH7vAIPdADBNWyU1zaR5GXWZ2GU=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (84 bytes)

0a0921613163643431346312134b535f5465686163686170695f4d746e5f31571a044b5354312206e072a1cd414c287a42206e2bd9600bcaf23f51c18574cc7eef0083dd00304d5b2535cda479197599d8654800

Hex Analysis:

Size:	84 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 #157283 Failed

Packet Information

Payload Data

Decoded Data: