Packet #2139867

Packet Information

Database ID:	2139867
Mesh Packet ID:	`0x9325c1d9` Used for correlation across gateways
Timestamp:	2025-11-15 15:38:32 UTC
From Node:	Meshtastic cb3c (Rock)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TEXT_MESSAGE_APP Port: 1

Gateway:	YMH 2 @ Your Mom’s House (YMH2)
Channel:	LongFast
RSSI:	-83 dBm
SNR:	-17.75 dBm
Hop Info:	1/4 hops Start: 4, Limit: 3
Relay Node:	`7b` 4b7b Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Payload Data

Protocol: TEXT_MESSAGE_APP

Size: 10 bytes

Decoded: Yes

Text Content:

Ack 5 hops

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:	10 bytes
Gateway:	!b2a6fda8
Channel:	LongFast
Payload Type:	TEXT_MESSAGE_APP
Hop Count:	1 / 4

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`	`!b2a6fda8` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (10 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1128123196` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`1` TEXT_MESSAGE_APP	enum
`decoded.payload_length`	`10` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-83.0` dBm Signal strength at gateway	int32
`rx_snr`	`-17.75` dB Signal quality at gateway	float
`rx_time`	`1763221197` 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`	`123` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1763221112.7124288` 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:	`!b2a6fda8`
Signal Metrics:	RSSI: -83.0 dBm SNR: -17.75 dB

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b2a6fda8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128123196, "to": 4294967295, "id": 2468725209, "rx_time": 1763221197, "rx_snr": -17.75, "rx_rssi": -83, "hop_limit": 3, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 123, "tx_after": 0, "decoded": { "portnum": 1, "payload": "41636b203520686f7073", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "Ack 5 hops", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }

Raw Packet Data (10 bytes)

41636b203520686f7073

Hex Analysis:

Size:	10 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.

All Receptions

All gateways that received this packet
Correlation: Using Mesh Packet ID

Reception Locations

Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.

Gateway	Time Offset	RSSI	SNR	Hops	Relay	Channel	Timestamp	Actions
YMH 2 @ Your Mom’s House (YMH2) Primary	0.000s Reference	-83.0 dBm	-17.75 dB	1	`7b` 4b7b	LongFast	2025-11-15 15:38:32 UTC	Current
Steiner Studios Tower (SST)	-0.017s Before	-113.0 dBm	-6.50 dB	1	`7b` 4b7b	LongFast	2025-11-15 15:38:32 UTC	View
MeshM0xie (M0x)	+0.004s After	-108.0 dBm	-15.00 dB	1	`7b` 4b7b	LongFast	2025-11-15 15:38:32 UTC	View
K2XAP V4 MS (XAP4)	+0.892s After	-68.0 dBm	-0.75 dB	2	`c9` Penn	LongFast	2025-11-15 15:38:33 UTC	View
ClaremontWx.net (CmWx)	+0.916s After	-80.0 dBm	3.25 dB	2	`c9` Penn	LongFast	2025-11-15 15:38:33 UTC	View
SACKMESHv3 \| https://nyme.sh (SMv3)	+1.254s After	-126.0 dBm	-16.25 dB	2	`c9` Penn	LongFast	2025-11-15 15:38:33 UTC	View
DRP1 Chelsea (DRP1)	+1.277s After	-77.0 dBm	6.75 dB	2	`c9` Penn , JLX3	LongFast	2025-11-15 15:38:33 UTC	View
Claudiopolis-440c (440c)	+1.397s After	-99.0 dBm	-11.50 dB	2	`c9` Penn , JLX3	LongFast	2025-11-15 15:38:34 UTC	View
1 MW 1 West Side \| https://nyme.sh (1MW1)	+1.661s After	-104.0 dBm	-1.25 dB	2	`c9` Penn	LongFast	2025-11-15 15:38:34 UTC	View
🦨 corruptedstack🦨 meshtoad 🐸 (dmbp)	+1.871s After	-107.0 dBm	-15.75 dB	3	-	LongFast	2025-11-15 15:38:34 UTC	View
corruptedstack Weather (cswx)	+1.922s After	Unknown	Unknown	4	`ed` dmbp	LongFast	2025-11-15 15:38:34 UTC	View
aurelia (🧚)	+2.090s After	-109.0 dBm	-1.50 dB	2	`c9` Penn	LongFast	2025-11-15 15:38:34 UTC	View
csbot (dmbb)	+2.169s After	Unknown	Unknown	4	`ed` dmbp	LongFast	2025-11-15 15:38:34 UTC	View
Meshtastic 631c (631c)	+2.520s After	-109.0 dBm	-18.75 dB	3	`d4` 85d4	LongFast	2025-11-15 15:38:35 UTC	View
dkTowerBot (dkTB)	+2.829s After	-98.0 dBm	-8.50 dB	3	`28` b028	LongFast	2025-11-15 15:38:35 UTC	View
Gowanus Soda (p1p)	+4.307s After	-111.0 dBm	-12.50 dB	2	-	LongFast	2025-11-15 15:38:37 UTC	View
BeMoreSQUIP 1 (VPP1)	+7.721s After	-117.0 dBm	-15.00 dB	4	`b4` PARK	LongFast	2025-11-15 15:38:40 UTC	View
bit0fun \| nyme.sh (🟠)	+10.749s After	-91.0 dBm	2.50 dB	4	`31` a031 , ν	LongFast	2025-11-15 15:38:43 UTC	View
JLO6 - Corona Solar (JLO6)	+17.192s After	-73.0 dBm	-3.25 dB	3	`35` JLX5	LongFast	2025-11-15 15:38:49 UTC	View
DRP0 Astoria (DRP0)	+18.554s After	-114.0 dBm	-12.00 dB	3	`b2` 😴 , CBZ1	LongFast	2025-11-15 15:38:51 UTC	View

20

Total Receptions

20

Unique Gateways

Packet #2139867 Success