Packet #1818431

Database ID:	1818431
Mesh Packet ID:	`0xca117d5f` Used for correlation across gateways
Timestamp:	2026-08-05 00:02:53 UTC
From Node:	CC RRSU (RRSU)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	EA7KO_E22 (7KO/)
Channel:	SFNarrow
RSSI:	-107 dBm
SNR:	-7.5 dBm
Hop Info:	5/5 hops Start: 5, Limit: 0
Relay Node:	`3b` Last byte of the last hop that relayed this packet

Long Name:	CC RRSU
Short Name:	RRSU
Node ID:	!ded6d0da
MAC Address:	ygHe1tDa
Hardware:	M5STACK_RESERVED

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:	74 bytes
Gateway:	!362cca5f
Channel:	SFNarrow
Payload Type:	NODEINFO_APP
Hop Count:	5 / 5

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: SFNarrow
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!362cca5f` Node ID format
`channel_id`	`SFNarrow`
`packet`	`MeshPacket` (74 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`3738620122` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`74` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`5` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-107.0` dBm Signal strength at gateway	int32
`rx_snr`	`-7.50` dB Signal quality at gateway	float
`rx_time`	`1785888169` 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`	`32` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`59` 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: SFNarrow
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (5 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!362cca5f`
Signal Metrics:	RSSI: -107.0 dBm SNR: -7.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	74 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!ded6d0da", "long_name": "CC RRSU", "short_name": "RRSU", "macaddr": "ygHe1tDa", "hw_model": "M5STACK_RESERVED" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 3738620122, "to": 4294967295, "channel": 32, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhZGVkNmQwZGESB0NDIFJSU1UaBFJSU1UiBsoB3tbQ2ihoOAxCIP5FhxXao1fg2FS0+Sxqv8ggZvR6L8htU8bEfOJfifBDSAA=", "bitfield": 1 }, "id": 3390143839, "rx_time": 1785888169, "rx_snr": -7.5, "rx_rssi": -107, "hop_start": 5, "relay_node": 59, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "SFNarrow", "gateway_id": "!362cca5f" }, "mesh_packet": { "from": 3738620122, "to": 4294967295, "channel": 32, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhZGVkNmQwZGESB0NDIFJSU1UaBFJSU1UiBsoB3tbQ2ihoOAxCIP5FhxXao1fg2FS0+Sxqv8ggZvR6L8htU8bEfOJfifBDSAA=", "bitfield": 1, "parsed_payload": { "id": "!ded6d0da", "long_name": "CC RRSU", "short_name": "RRSU", "macaddr": "ygHe1tDa", "hw_model": "M5STACK_RESERVED", "role": "CLIENT_BASE", "public_key": "/kWHFdqjV+DYVLT5LGq/yCBm9HovyG1TxsR84l+J8EM=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 3390143839, "rx_time": 1785888169, "rx_snr": -7.5, "rx_rssi": -107, "hop_start": 5, "relay_node": 59, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (74 bytes)

0a092164656436643064611207434320525253551a04525253552206ca01ded6d0da2868380c4220fe458715daa357e0d854b4f92c6abfc82066f47a2fc86d53c6c47ce25f89f0434800

Hex Analysis:

Size:	74 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 #1818431 Success

Packet Information

Payload Data

Decoded Data: