Questions tagged [networking]

For questions about networks of Internet of Things devices and their administration, management and security. Consider using more specific tags instead of this where they apply, since this tag is intended for generic questions about networking itself.

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1answer
48 views

How to setup internet in neighbourhood, completely disconnected from regular internet? [closed]

I read in past (few years back), there is this device which can be installed, like a server and delivers access to websites in certain radius. It also uses WiFi and repeaters to provide access. This ...
8
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1answer
273 views

Automatic link failure detection methods in ZigBee networks

Given a ZigBee mesh network with several nodes in it. There are established links between each node via router nodes. If Node A wants to send a message to Node Z for the first time then Node A must ...
4
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1answer
58 views

How to access internet-connected home when phone moves between LAN Wi-Fi and Cellular?

My 20-year-old home control computer is on my LAN and has incoming port forwards for remote access. My iPhone can access it either way, but I have to stop and think which connection it is using, so ...
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0answers
70 views

Microchip RN2903: TX/RX distance with internal antenna

My question is about the maximum transmission distance achieved with the Microchip SoC RN2903, only using its internal antenna. I've been doing field tests in urban environments, with this module and ...
3
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1answer
67 views

Connect to I/O remote through VPN router

I have two I/O remotes hooked up to a router running as an OpenVPN client. I am trying to connect to the devices from remote, but it is not working. The VPN connection works fine, and I can access ...
3
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1answer
66 views

Is static IP needed if using VPN to connect to IoT devices?

I have an IoT solution that I need to connect to from remote. I don't have access to open ports nor set static IPs on-site where the IoT devices will be hosted so I was looking for other solutions. ...
11
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1answer
1k views

What is the typical network topology for an IoT network?

I see several questions asking about details of an IoT network, including this one about port forwarding for example. I think it would be useful to ask about what might be considered the typical ...
10
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2answers
1k views

Configuring LoraWan Gateway

I'm trying to build a LoRaWan Network using a sensor programmable with Arduino and a Dragino Lora Shield. I have found many solutions for creating a gateway, including an Raspberry Pi connected with ...
4
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1answer
129 views

Efficient Server- and Protocol structure for raspberry, smartphone and 3rd-party-device network

I am new to this forum and this field. I am looking forward to good criticism and tutorials/links/instructing suggestions to build a nice system with as less effort as possible while achieving all ...
8
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2answers
264 views

How can I use End-to-end encryption in sensors network?

I have been reading about XMPP and its extensions. One of them called (XEP-xxxx: Sensor-Over-XMPP) which is really interesting. I have read also about another XMPP extension which is OMEMO protocol ...
4
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1answer
204 views

Remote com (serial) connection through cellular IoT

We need to be able to make a com (serial) connection remotely off site from PLC type device. We have completed a POC for sending some signals to Azure IoT utilizing a Siemens IoT2020 running linux ...
6
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1answer
120 views

Could not ping ESP8266 Wifi module connected to an Arduino

I have been working with a water flow counter which sends data over wifi. I'm using an ESP8266 wifi module. Everything is correctly connected and I've gotten to the point where it's correctly ...
4
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1answer
798 views

How to convert messages between CoAP and MQTT protocols?

I am a master student and my topic is about making protocol conversion among IoT communication protocols for example between CoAP and MQTT in order to make the devices that use MQTT protocol to ...
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2answers
68 views

Sending Data via a Local Network [closed]

I'm sure there is a very easy answer to this but I'm struggling to search for the answer on Google due to missing crucial technical knowledge and terminology. If I have two phones that are 1km ...
8
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2answers
425 views

Embedded C—check internet connection

Is there any way to check if actually my embedded device has a working connection (i.e. can reach the WAN)? My device has no RTOS, so I cannot rely on OS functionalities like ping. I can see that the ...
5
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1answer
132 views

How to connect 1 million devices over Layer 3 IP-protocol

I have edited the question after reading about MAC-to-MAC protocol (RMII/MII) here: https://community.nxp.com/thread/316374. My IOT device looks like a USB stick. I am building a datacenter for 1 ...
6
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1answer
93 views

Synchronized data between Hardware's storage and Server's database

I saw in China's bus system, that there are devices inside the bus which can handle e-payments. The process is something like this: Passengers come in the bus. Passengers use a QR-code in their ...
8
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1answer
14k views

What ports does an LG TV open?

I'm seeing some unexpected ports open on an LG TV model 47LN5750-UH, serial 311MXTC1E969. Below is the result from a nmap scan. Nmap scan report for 172.16.4.4 Host is up (0.00021s latency). Not ...
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4answers
4k views

How can I check if my IoT devices are infected with the Mirai worm?

I've recently heard about the Mirai worm, which infects vulnerable routers, IoT devices and other internet-connected appliances with insecure passwords. Mirai is suspected of being the cause of some ...
7
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1answer
324 views

What do ACK, SB, SF, LG, RES mean in Sigfox network?

I found these abbreviations in an official documentation and I don't know what they are stand for. Can you explain it to me please? I know that it is basic question.
6
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3answers
601 views

How can I push data from car-mounted microcontrollers to a remote server?

Firstly, I'm a newbie in the IoT field. Hardware parts are quite new to me. I want to make a small project. That is creating a box attached into a car that can keep track its location and temperature....
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3answers
2k views

How to access camera feed of Raspberry Pi out of a local broadband network?

BACKGROUND The current setup I have for the Raspberry Pi is: USB Webcam -> Raspberry Pi -> Netgear Router -> Local ISP -> Internet My ISP gives me a captive portal through which I can ...
3
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2answers
362 views

Raspberry Pi outdoor connectivity for large farm [closed]

I have several raspberry pi zeros connected to agricultural sensors in a large farm(1500+ acres). What is my best solution for getting the agricultural data from them wirelessly? I want to get the ...
15
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5answers
6k views

How do I avoid port forwarding when exposing IoT devices to the external Internet?

I received some good answers in the question What do I need to create my own personal cloud for IoT devices? and one of the things that I understood from there is that I need to "expose" my HUB or ...
36
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5answers
2k views

Can I monitor my network for rogue IoT device activity?

In order to mitigate or manage the risk from having some of the devices on my home network compromised, is it feasible to monitor network traffic so as to detect a compromise? I'm specifically ...
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0answers
113 views

How to make node select the least preferable parent as preferred parent in RPL protocol?

I would like to simulate in Cooja the following: one of the nodes selects the worst parent that provides the worst routing information as its preferred parent i.e. it breaks the Objective Function ...
9
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1answer
992 views

Is there any way to access local server from outside without port forwarding? [duplicate]

Situation I need to access an ESP8266's Wi-Fi local server from outside. Like Xiaomi Yeelight (YeeLight Introduction Web Site Link) or LOHAS LED (LOHAS LED Web Site), I have to control it from ...
6
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1answer
105 views

Protocol for over 300 metres and minimum of 20 kbytes datarate?

We are trying to choose the most suitable connection protocol for wearable devices, with the following constraints: 300 - 500 devices will simultaneously connect About 1 km2 site area—coverage is ...
6
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1answer
493 views

SSH into an Orange Pi connected to the internet via 2G GSM module

I wanted to SSH into my Orange Pi remotely. It will be connected to the Internet via a 2G GSM module. How should I go about it? Usually it's ssh username@ip address. The setup isn't implemented yet so ...
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2answers
180 views

Build a “Smart Home”—Lack of Security [closed]

I am preparing to make my home smarter and for some reasons I am not happy. I read several articles about secure the smart home, but there was no clear solution. I don't know why, but it seems that ...
12
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4answers
419 views

Would using a Tor wifi router make IoT more secure?

Would using a Tor wifi router make IoT more secure from attacks etcetera? These routers provide a Tor client, and also tunnel all internet traffic through a VPN. This anonymises your internet access ...
10
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2answers
1k views

Standards for non-Internet-connected WiFi devices?

I'm planning to do a lot of home automation. For that I will host a private isolated WiFi network to which all my devices will be connected to. The devices will be simple lights, RGB LED strips (...
8
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2answers
2k views

Creating an HTTP GET polling service on a Raspberry Pi Client

I have the following hardware: 3 x Particle Photons. Each serve as an HTTP Server 1 x Raspberry Pi 3 which will serve as an HTTP Client Upon requesting an HTTP GET to any of the the Photons, the API ...
5
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0answers
85 views

How will network bootstrapping work for headless embedded-SIM IoT devices?

Is there something akin to the Wi-Fi Alliance DPP (Device Provisioning Protocol) in the world of embedded SIM?1 If so, it would be really nice to get an outline of how it would work at a high level. ...
10
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3answers
576 views

Does XMPP have a large overhead for IoT devices sending short, frequent messages?

I've been reading about XMPP as a potential communications protocol for IoT devices but, after reading one source, I'm unsure whether it's really an appropriate protocol if you're concerned about ...
6
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0answers
706 views

Mobile network on Android Things SoM?

I want to build an Android Things device that can report its location via mobile network (4G LTE, LTE-M if possible, 3G & 2G). How can I plug such a mobile modem and connect it properly down to ...
6
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1answer
121 views

Does 6LowPAN stack helps in requirement of gateway?

After 6LowPAN stack. Every node can have the different internet IPv6 address. So, Is 6LOWPAN stack is present in GATEWAY or sensor mote as well? In a case of sensor mote, is a GATEWAY required? Can't ...
9
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1answer
191 views

Does CoAP depend on IEEE 802.15.4?

In the CoAP specification, it is implied that IEEE 802.15.4 can be used in conjunction with CoAP. Is this a requirement or can CoAP also be used with other OSI layer 1, 2 protocols such as IEEE 802.11,...
15
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2answers
309 views

Is Wi-Fi HaLow unsuitable for IoT applications because it operates in unlicensed frequencies?

The Wi-Fi Alliance's relatively new Wi-Fi HaLow (802.11ah) specification seems to be ideal in some characteristics for IoT devices: Wi-Fi HaLow will enable a variety of new power-efficient use ...
9
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1answer
120 views

How can I synchronise data between devices, avoiding loss of messages and duplication?

I have an IoT network of devices sending data to each other, with data being stored in a database. If I have a device sending 10 packets/API requests in sequence, sometimes only a few reach their ...
11
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2answers
612 views

Are there any applications where blockchain is used with IoT?

Since the emergence of these two Technologies, it can be a near future possibility that blockchain and other forms of crypto-currency will be used more frequently. According to this article: The ...
13
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2answers
599 views

How to select simple light weight IoT server for development?

We are exploring the different IoT use cases and solutions. In order to facilitate the exploration, experimentation, design, development and testing of possible solution, I am investigating the ...
10
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1answer
772 views

Alexa cannot identify Fauxmo and ESP8266

I'm trying to control an ESP8266 using fauxmo. The programme compiles correctly, but when I run the Alexa app to find devices the ESP doesn't show up. The ESP is definitely connected to my home ...
6
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2answers
3k views

Does Arlo Pro communicate via WiFi?

I just setup an Arlo Pro security camera (made by Netgear) and found it interesting that the system didn't explicitly have me configure a WiFi connection. The setup process consists of hard-wiring the ...
7
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2answers
149 views

Connecting your Pi to the internet when mobile

So I am working on a project where I have torn away all the RC related parts of an older 1/10 scale Racing Buggy I had as a kid and replacing said parts with some Arduinos and a GPS to create a super ...
5
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1answer
471 views

How to find remote thing's IP address?

I have a physically remote thing. It's on someone else's network so I can't get a static IP address for it. What is the best way to track its IP address? I can imagine just publishing a "heartbeat" ...
6
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2answers
677 views

Web admin panel for embedded Linux IoT devices

Devices like routers always have a web-based administrative interface that allows you to configure many aspects of the device from a web browser. Obviously, this is essentially a web server running on ...
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3answers
1k views

Communication Between Server and Raspberry Pi

I am working on my home automation project. I have a server on digital ocean. I want to put my php code on that server and that server will connect to my Raspberry Pi. How can I pass messages between ...
2
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1answer
637 views

Connect Onion Omega2 to static ethernet [closed]

I can't get my Onion Omega2 to connect to my ethernet via a static IP address and two DNS addresses. To connect my PC, I have to set the following: IP address: 82.149.xxx.xxx subnet mask: 255.255.255....
9
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3answers
3k views

How to protect Raspberry Pi from attack in an IoT setup connected through a Broadband network?

The Setup: I have a Raspberry Pi as the master node which is connected to the internet through a broadband connection, the raspberry pi connects several sensors and other microcontrollers. The Pi is ...