In this article we are going to analyze the professional app for networks He.net Network Tools that offers a wide variety of tools so that we can study a local network and help to undertake the necessary improvement works.
Below I will summarize some of its most characteristic functions:
- Get current information about the devices connected to the network.
- ARP / NDP: Resolve IPv4 or IPv6 addresses.
- Bonjour Browser.
- DNS lookup.
- IP Calculator: Calculate the netmask, wildcard, network, host range, and broadcast mask for a given subnet.
- One Time Password.
- Ping tests.
- Traceroute: Finding the route packets take to reach their destination.
- Port scanning.
- SSL / TLS Analyzer: Inspect SSL / TLS domain name certificates.
- Whois: Get information about domain registration and more.
Let’s start by downloading the He.net Network Tools app for free from the Play Store:
Once installed the first time we start it, this screen will appear. This is the first part of the main menu.
The sections highlighted with black boxes are the ones that we are going to deal with, although as you can see it has some more sections.
We are going to start with ARP which is a protocol that will show us it will show us local IPv4 devices.
In this case it shows the IP of my router, MAC and manufacturer.
Now it is the turn of Bonjour Browser that it is a is a method to discover services in a local area network.
Here, for example, more things appear, such as two Android phones that I had connected by Wi-Fi.
In DNS I have put the local IP of my second PC and it has offered me the identification name that I have in Windows 10.
If we click on Device Manager we will obtain a list of the devices connected to our local network.
Here there are more teams, DESKTOP which is a desktop PC, two Android smartphones and the HS100 is a smart plug.
The next tool is a very useful IP Calculator for professionals who need to create or expand a large local network.
Now comes the turn of Interface information .
In this section it shows us the intensity in db and the connection speed to which we are connected in this case at 433 Mbps. It also shows our IP, MTU value and MAC address, among others.
With NDP it will show us all the local IPv6 devices. Since they are all in IPv4, none comes out.
With One Time Password we can add our HOTP and TOTP accounts by clicking on the + symbol.
Here we have Ping another classic tool, as an example I have proceeded to make one towards the gateway of my router and I have obtained these results:
If we continue down the main menu we will see new options. As the previous time we will focus on those that are framed in black.
With Ping Sweep I have obtained these results:
It also analyzes the SSL / TLS certificates of our local network if we click on SSL / TLS Analyzer .
Here you can see that my protocol that I am using is TLS.1.2 and also that I have a certificate installed.
With the following TCP Port Scan tool we will be able to do a port scan. Its operation is simple, just enter the desired IP.
This section has two options, one is OPEN where all open ports appear. The other is CLOSED where we have all the ports closed as you can see in the following image.
Another functionality common to various tools such as this, PING and others is that it allows you to put IPv6 addresses that you can do by clicking on where the red box is.
The next function to deal with is Whois, which will give us relevant information about the IP we enter.
I have chosen 8.8.8.8, as you can see it belongs to Google and in case you do not know about its DNS servers.
Finally in Settings you can configure the settings of the app. Here the section that interests us is Edit Port List .
In this screen we can remove or add the ports we want for when we do a port scan.
If we want to add one, click on ADD .