Packet #2877173

Packet Information

Database ID:	2877173
Mesh Packet ID:	`0x432f7143` Used for correlation across gateways
Timestamp:	2025-11-29 04:00:33 UTC
From Node:	K2XAP / nyme.sh (XAP)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TEXT_MESSAGE_APP Port: 1

Gateway:	ClaremontWx.net (CmWx)
Channel:	LongFast
RSSI:	-49 dBm
SNR:	7.0 dBm
Hop Info:	0/5 hops Start: 5, Limit: 5
Relay Node:	`e7` XAP 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: 38 bytes

Decoded: Yes

Text Content:

572 nodes seen since reset 9 days ago.

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:	38 bytes
Gateway:	!27532a57
Channel:	LongFast
Payload Type:	TEXT_MESSAGE_APP
Hop Count:	Unknown / 5

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!27532a57` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (38 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2334104039` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`1` TEXT_MESSAGE_APP	enum
`decoded.payload_length`	`38` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-49.0` dBm Signal strength at gateway	int32
`rx_snr`	`7.00` dB Signal quality at gateway	float
`rx_time`	`1764388821` 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`	`231` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1764388833.3091245` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!27532a57`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -49.0 dBm SNR: 7.00 dB

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!27532a57", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2334104039, "to": 4294967295, "id": 1127182659, "rx_time": 1764388821, "rx_snr": 7.0, "rx_rssi": -49, "hop_limit": 5, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 231, "tx_after": 0, "decoded": { "portnum": 1, "payload": "353732206e6f646573207365656e2073696e6365207265736574203920646179732061676f2e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "572 nodes seen since reset 9 days ago.", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }

Raw Packet Data (38 bytes)

353732206e6f646573207365656e2073696e6365207265736574203920646179732061676f2e

Hex Analysis:

Size:	38 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
ClaremontWx.net (CmWx) Primary	0.000s Reference	-49.0 dBm	7.00 dB	0	`e7` XAP	LongFast	2025-11-29 04:00:33 UTC	Current
K2XAP / nyme.sh (XAP)	-0.518s Before	Unknown	Unknown	0	`e7` XAP	LongFast	2025-11-29 04:00:32 UTC	View
Sunset Soda (p8p)	+1.450s After	-121.0 dBm	-9.50 dB	1	`57` CmWx	LongFast	2025-11-29 04:00:34 UTC	View
Gowanus Soda (p1p)	+1.479s After	-124.0 dBm	-15.75 dB	1	`57` CmWx	LongFast	2025-11-29 04:00:34 UTC	View
dkTowerBot (dkTB)	+2.747s After	-107.0 dBm	-17.50 dB	2	`81` Titi , JLO9	LongFast	2025-11-29 04:00:36 UTC	View
Steiner Studios Tower (SST)	+2.751s After	-113.0 dBm	-9.25 dB	2	`81` Titi , JLO9	LongFast	2025-11-29 04:00:36 UTC	View
Fried Fish 1 \| nyme.sh (FF1)	+2.804s After	-104.0 dBm	-12.00 dB	2	`81` d081 , Titi	LongFast	2025-11-29 04:00:36 UTC	View
MeshM0xie (M0x)	+3.521s After	-94.0 dBm	-0.75 dB	1	`c9` Penn	LongFast	2025-11-29 04:00:36 UTC	View
Psalm 23 (3:16)	+3.715s After	-118.0 dBm	-7.00 dB	2	`81` Titi	LongFast	2025-11-29 04:00:37 UTC	View
DRP1 Chelsea (DRP1)	+3.930s After	-78.0 dBm	6.00 dB	1	`c9` Penn , JLX3	LongFast	2025-11-29 04:00:37 UTC	View
CBZ0 🚕 mobile (CBZ0)	+4.005s After	-116.0 dBm	-8.50 dB	1	`c9` Penn , JLX3	LongFast	2025-11-29 04:00:37 UTC	View
Claudiopolis-440c (440c)	+4.276s After	-90.0 dBm	-5.00 dB	1	`c9` Penn , JLX3	LongFast	2025-11-29 04:00:37 UTC	View
Meshtastic f5c8 (f5c8)	+4.608s After	-102.0 dBm	-10.25 dB	3	`b9` NYCR	LongFast	2025-11-29 04:00:37 UTC	View
Meshtastic 631c (631c)	+4.688s After	-87.0 dBm	1.50 dB	3	`b9` NYCR	LongFast	2025-11-29 04:00:37 UTC	View
YMH 2 @ Your Mom’s House (YMH2)	+6.087s After	-60.0 dBm	2.75 dB	2	`90` NLG1	LongFast	2025-11-29 04:00:39 UTC	View
YMH 1 @ Your Mom’s House (YMH1)	+17.963s After	-122.0 dBm	-13.50 dB	4	`fc`	LongFast	2025-11-29 04:00:51 UTC	View
Cams Rak4631 (CARA)	+37.330s After	-46.0 dBm	6.50 dB	5	`f4` CAMR	LongFast	2025-11-29 04:01:10 UTC	View
Lv4 - Heltec V4 Green (Lv4)	+265.378s After	-54.0 dBm	5.75 dB	3	`35` JLX5	LongFast	2025-11-29 04:04:58 UTC	View

18

Total Receptions

18

Unique Gateways

Packet #2877173 Success