Ip adresse handy hotspot


Specifying ensures that it's Toybox even if you have a GNU or BusyBox in your .

Several subcommands (see ) spit out a burst of lines when the hotspot is turned on or off, as does . The IP address displayed in this field is the gateway IP address of your smartphone hotspot.

Remember to make a note of the gateway IP address for future use.

Method 4: macOS Devices

If you're using a macOS device, the steps to find the gateway IP address are as follows:

  1. Connect your macOS device to your smartphone hotspot.
  2. Click on the Apple menu in the top-left corner of the screen and select "System Preferences".
  3. In the System Preferences window, click on "Network".
  4. Select your smartphone hotspot connection from the list on the left-hand side of the window.
  5. Click on the "Advanced" button in the bottom-right corner of the window.
  6. In the next window, click on the "TCP/IP" tab.
  7. Look for the "Router" or "Router Address" field.

    These are the information sent to the clients, along with some others automatically determined by . (It can be determined, for instance, by running after turning on the hotspot, and looking at which interface has ... Meanwhile, the hotspot will now recognize as an IP address of its own, so any packets sent to that address, it will handle itself.

    You can look at Part III, Step 2 for a way to do this automatically when turning on the hotspot.

    The smartphone treating this address as its own could cause collisions (with a small chance) when it joins another Wi-Fi network as a client, but in my experience Android clears IP addresses when turning the hotspot off or on, so this is not an issue.

    Part I: Steps after turning on the hotspot​

    These commands should be run in a root shell after turning on the hotspot.

    Then tap Wi-Fi and select the connected Wi-Fi network. However, it would result in both and Android's Java implementation trying to start a DHCP server, whichever is started later would fail, and Android would turn hotspot back off. It may be a quirk of Android's (patched?) ; it doesn't use , nor does it get the remote DNS servers on the command line; I suspect it gets them via its standard input from the Android process that starts it, which we can't easily take over, especially in such a way that we get all input sent to it.)

    If you want to configure DNS (perhaps add local hostnames, or do some filtering) you should probably kill the stock instance and do configure the new instance to also act as a DNS server, perhaps using a public DNS server like as a fallback.

Part II: Step(s) when the hotspot is turned off​

  1. Kill the DHCP server you started​

    If it keeps running, when you try to turn on the hotspot again, Android will fail to turn on its own DHCP server implementation which, in my experience, causes it to turn the hotspot off.

    Then, tap the Personal Hotspot option and toggle it on if it isn’t already. But when I made "writable" using Magic Overlayfs (fork of Magisk Overlayfs), the action in the init file I created didn't run, likely because the overlayfs is mounted later than Android processes the init files. If you put them in a script that runs whenever the hotspot is turned on, you should keep them from piling up.

    So if you include this step, kill that instance before or immediately after the command with

  2. Add an IP address/subnet and fix routing​

    Bash:

    if you want the hotspot's subnet to be 192.168.69.y, with the hotspot's own IP address being 192.168.69.1, and the interface is .

    The command automatically adds some routes corresponding to the new network; a plain made it seem like the routing was equivalent to the original setup (after turning on the hotspot, before any changes), just with a different subnet.

    Find the Wi-Fi network you’re currently connected to and tap the “i” icon at the far right of the screen. To remove the subnet while detecting the IP address/subnet automatically, use this command:

    Bash:

    (changing the interface name in both places if it's different on your device).

    In my experience, the instance started by Android to serve as a DNS server starts using 100% CPU when deleting the IP address Android picks.

    Now, when you need a fresh IP, turn on airplane mode and then turn it off to connect to the network again with a new IP.

  3. iOS: It's the same process. I like to assign fixed IPv4 addresses to my devices on my local network, so I can access them from one another at known IP addresses.

    The problem is Android provides no option on its GUI to configure the settings of the hotspot such as the subnet, the phone's WLAN IP address, the address range from which the DHCP server allocates addresses to the clients, or allocating fixed IP addresses to specific devices (MAC addresses).

    And since around Android 10, Android no longer uses as a DHCP server, but uses its own Java-based implementation, so older guides don't work. In this blog post, we will discuss how to find your iPhone’s hotspot IP address, as well as what it is and how it works.

    First of all, let’s discuss what an IP address is. First, open your Settings and tap the Cellular tab.

    But if need be, the commands can be undone by replacing with .

    Part III: Automating it​

    1. Collect the above steps in scripts​

      I like to create a directory to put various stuff as administrator that doesn't belong anywhere else. Both can be found with, for instance, , looking for ...; a sample output is

      Code:

      The interface name (like on my device) shouldn't change on a given device, so it can be left hardcoded in your scripts.

      Your carrier can see which websites you visit, when you visit them, and how much data you use. (The opposite of line-buffered here isn't unbuffered, it's buffered with a big buffer, and only flushed when it's full, or the input ends; it's not suitable for finding events in a monitoring command that runs indefinitely.) Toybox (which Android's stock is) is line-buffered by default.

      Make sure you set a strong password for the network. Each layer adds another degree of separation between you and the websites you visit.

      At first, it might look like carriers are protecting your privacy, but that isn't the goal. The good news is that you don't always need a VPN to bypass these restrictions. With some trial and error, I used the second command above to add the missing route.

    2. Start your own DHCP server.​

      is a program that can act as a DNS server, DHCP server or both.

      disables DNS, so we don't conflict with the stock DNS server. The IP address displayed in this field is the gateway IP address of your smartphone hotspot.

    Ensure to jot down the gateway IP address for future reference.

    Conclusion

    Knowing the gateway IP address of your smartphone hotspot can be beneficial when troubleshooting network issues or configuring network settings on your connected devices.

    ensures that some process has the pipe open for writing as long as is running, so it never gives EOF even though returns immediately. Tap Configure IP, then select “Configure IPV4”. You're simply forcing a rotation on demand.

    This works because mobile carriers use dynamic IP allocation. Finally, it should also be noted that in stock Android devices the default IP of the phone will become 192.168.42.1 and subnet mask of 255.255.255.0 when connected through a Hotspot.

This article may contain affiliate links (disclosure policy).

from within the Termux environment or the chroot respectively; one way to start something in the context of a Termux environment from outside it is to start an ssh server inside it from Termux:Boot.)

Start like this:

Bash:

Some of the options I copied from the stock instance, which still has some vestigal DHCP-related options given to it even though it doesn't actually provide DHCP.

Then put the commands to be run when the hotspot is turned on in , it should look something like this:

Bash:

Here I put the configurable options and the device-dependent interface name at the beginning in variables, so they can be changed easily.

I put some sleep at the beginning to try to make sure the stock DHCP server is started by the time we try to detach it, not afterwards.

In , put

Bash:

Make them executable:

Bash:

  • Run them when the hotspot is turned on or off​

    Create a script like this:

    Bash:

    Substitute where you put the two other scripts; of course you can also just paste the contents of those scripts directly into the branches of the .

    sets the range of automatically allocated IP addresses; this is also the option that tells to actually act as a DHCP server at all. A simple way to do that is to just delete them unconditionally (which will throw an error message if they don't already exist, but otherwise do no harm) like this:

    Bash:

    and then (re-)add them unconditionally.

    Another solution could be not to remove the IP address assigned by Android (in our examples ) in Step 2, and to use that address as the DNS server, by adding this option to :

    (My first attempt at a solution, or rather my first attempt to start a DHCP server in the first place, was to kill the stock instance, and start my own instance to act as both DHCP and DNS server, now listening on the new IP address.

    An IP address stands for Internet Protocol Address and is a numerical label assigned to each device connected to a network. For genuine anonymity and security, even a free VPN does more to protect you than this method ever could.

    Beyond privacy concerns, there are practical limitations too: battery drain, data caps on hotspot usage, and unstable connections that fluctuate with tower congestion.

    So, by turning on your mobile hotspot, you can quickly switch between different IP addresses from the same provider without a VPN.

    This is perfect for testing, research, or getting past temporary restrictions—just don't expect it to fool anyone looking closely.

    • Are you curious to know what the IP address of your iPhone’s hotspot is? is some vendor- (Android-) specific thing (it also has nothing to do with the 192.168.43.y IP address range earlier Android used).

    Of course you can also put options in a config file, and specify it with on the command line.

    If you don't kill the stock instance in Step 2, we'll likely have two instances running: one providing DNS only, and another DHCP only.

    (Another alternative that sounds natural would be to remount read-write (either actually, or virtually using some overlay) put our configuration in the default , and tell the stock instance to act as a DHCP server to our liking.