Is there any way to set a static IP address to Android device if the device is connected to a network via ethernet cable using ethernet to USB adapter?
I tried connecting to device via ADB and then changing IP address using $ ifconfig eth0 x.x.x.x command, but I got ifconfig:ioctl 8916: Permission denied as an answer.
Nope, there is no way to set it on common devices. You need rooted device, which allows you to run ifconfig eth0, thats the only way (valid up to Android 13). By default eth0 will obtain IP using DHCP, if there is no DHCP available - it just won't work. In "your" network you may assign some particular IP for particular MAC (also ensure that MAC address of ethernet isn't randomized like for Wi-Fi starting Android 10, but it shouldn't be on Linux level)
Related
In developer options (Android 7.1.2), I can activate "ADB over network". It automatically sets the IP address where ADB listens to the one of the devices WiFi interface.
For added security and flexibility (I'd like to debug in a cafe with public WiFi), I would like ADB to listen on the IP address of my OpenVPN tunnel. Is there a way to do that?
I had the same query and found your post.
I tried it, and although it doesn't show the IP assigned by the VPN server, you still can get adb to connect with that IP.
Whether or not it can be connected to with the displayed IP, I'm not sure.
I want to send data from a device to an Android Phone.The Android Phone and
device are connected through hotspot. i.e. Device is connected to Android phone through hotspot of Android.The device has capability to send data over sockets provided an IP and port. what destination IP should I provide to the device so that it can connect to my Android device on a given port. I have written the corresponding code on Android device to receive connection on a given port.
The Android phone will act as the gateway for your other device. Therefore, to find the IP of the Android phone from the other device, you have to inspect the routing information to get the IP of the gateway.
Command line
On the device connected to the access point provided by the Android phone:
$ ip route
default via 192.168.43.1 dev wlan0
...
You can validate this information by checking the IP of your Android phone:
$ adb shell ip addr
...
6: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP>
...
inet 192.168.43.1/24 brd 192.168.43.255 scope global wlan0
This should show you the IP assigned to the WiFi interface of your Android phone. It should match the gateway IP seen on your other device.
From code
If you have to obtain the gateway IP automatically, check here for some code examples.
I am attempting to establish point-to-point communication between a Pixel C tablet
and an embedded device.Pixel C tablet is running Marshmallow 6.0.1. I have the devices
physically connected by USB.They will use this usb to communicate using standard web services.
In the configuration, the embedded device is acting as the "server" but unfortunately does not
support DHCP. I need to create a static IP address and disable DHCP on the tablet side.
I was able to establish an ethernet connection with LAN(DHCP) but the Pixel C does not provide the
capability to disable DHCP and modify ethernet settings.This appears to be changed for Marshmallow.
My question is, is there a procedure to create a static IP address and also disable DHCP on
the Pixel C(Marshmallow 6.0.1)? If not, can we restore the settings that were available on
previous versions of Android?
csd
If you long press on the network connection, you can select "Modify the network".
Then, select "Advanced Options" and "Ip parameters". Here you can choose "Static".
I did it on my Pixel C due to Wifi problems but I'm french and menus are in french.
Hope it helps
SamSam
Need root android device:
on android phone:
ifconfig rndis0 192.168.42.129 up
ip route add default via 192.168.42.1 dev rndis0
iptables -t nat -A OUTPUT -p udp --dport 53 -j DNAT --to 192.168.42.1:53
on linux pc do this:
ifconfig usb0 192.168.42.1 up
I found the following post which describes how to assign a static ip to a wifi interface. I am currently developing for a Nexus 7 (4.1.2) and have an OTG cable along with a Linksys 300M usb-to-ethernet adapter. Is there a way I could assign a static ip to the ethernet interface?
Once again, thank you very much.
Assuming your ethernet interface on the device is eth0, this should work :
ifup eth0 192.168.1.2 255.255.255.0
in general
ifup<interface name> <ip-address> <netmask>
You could also do this with ifconfig, but changing the IP address manually still requires root or you'll just get an ioctl error informing you as such.
Is there a way to find the IP address of the desktop machine connected the android phone after USB tethering is turned on?
Does android assign a fixed IP address to the desktop? Or does it assign a dynamic address (dhcp)? Is there a PPP connection created between the phone and machine?
With USB tethering it seems that all android devices use the same static addresses, the android device using tcpdump is 192.168.42.129
The attached device will get a DHCP provided address in the same address range.
I listen to a port on my android app and have a udev rule to push the dhclient address back to that port on my app.
AFAIK, in usb tethering mode the phone is acting as the computer's modem, so the PC's IP would be the phone's IP.