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.
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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)
I have android with two network interface wlan0 and eth0.
Interface eth0 is connected with some private network (without internet).
Interface wlan0 is the source of Internet of my device.
The problem is when activate eth0 ethernet port of the device the internet coming from the wifi stops to work, there are routing problems.
I did some routing configuration command and am able to solve it.
ip route add table eth0 default via 192.168.100.1 dev wlan0 proto static
The issue is, when I restart the kiosk the config disappears so, I have to do it again each time.
Can you tell me how can I change permanently ?
Thank you in advance.
volley is not working when i want to fetch data from a system on my local network.
where URL is like http://192.168.x.x/data.php
it works well on emulator but not on a real device. it show a time our error.
even i tried setting a maximum time our and retry policy. but in vain.
There are two ways to solve this:
a) keep your device connected to the PC which is connected to your local network either using lan or wifi. Keep debugging mode on. Use ipconfig to check your pcs ipv4 address and use that.
forward your server's port on your router and then use the ipv4 address found on your pc's ipconfig command.
c) Best option-> i use this. Forward your pc's server port on your router, Go to your router's DHCP configurations and give your pc mac a preferred DHCP ip to make sure your router always gives that local ip to your pc(global will still be dynamic if you dont have a static ip). Register to a DDNS and use the set ip above and you will be able to access your web service from anywhere in the world. (i use dynudns for the ddns part)
see How can I access my localhost from my Android device? for other ideas
In the first two steps, make sure that the mobile is connected via wifi so that the router can forward it requests. in third, it can be connected to the internet anyway it likes. Also in the first, you will have to change the url everytime your local ip changes.
In second option, the dns will give a tool for auto ip updation :)
Setting static IP Address(192.168.55.155) on android device, results in its WiFi connection not working (no internet).
If its DHCP on the android device, WiFi (internet) works. The Gateway on the device is pointing to Wifi Router.
I have a few android devices on the WiFi router. I need to know the IP Addresses of these devices in advance, so having static IP address is one way.
What configuration is missing?
You cannot give it a fixed address of 192.168.55.### when the router gives you one like 192.168.0.### but only 192.168.0.### also. Try 192.168.0.155.
Its easy, use an APP called Fing this APP allows you to watch all devices connected to your network and their IPs.
My android device has two independent ethernet interfaces.The eth0 is a physical NIC, and it's in a internal network which ip adrress is 192.168.1.100. The eth1 comes from a LTE module in a different network which ip address is 10.10.1.10. Now the android device will be used like a router, any datas which come from 192.168.1.* will be forward to 10.10.1., any datas which come from 10.10.1. also will be forward to 192.168.1.* by my android device.
How to achieve this function on the android device? Are there any opensoure projects can be used? Thank you!
If your device is rooted device you can use linux command, for example
http://www.revsys.com/writings/quicktips/nat.html