[SOLVED] Local static ip while connected to a mobile hotspot

[sahil.bhatnagar909]

Hi, i need help to set up a local static ip on my pc (windows 10) that I use with my android phone's (oneplus 7) hotspot. When I set up my local ip for the first time it worked perfectly. I used the default gateway and dns server that i got from ipconfig. The problem is that every time I reconnect my hotspot, only google websites open, until I change the Dns and gateway in the network settings again. Is there any workaround to this?

Note: i have a TP-Link WN-881ND Wifi Card

 

[kanewolf]

Why not let DHCP set the gateway. You can keep hard coded DNS, but let the DHCP from the hotspot set the gateway.

 

[sahil.bhatnagar909]

Why not let DHCP set the gateway. You can keep hard coded DNS, but let the DHCP from the hotspot set the gateway.

How can I do it? Because if I change the IP i have to put in a gateway

 

[kanewolf]

How can I do it? Because if I change the IP i have to put in a gateway

So you don't use DHCP from the hotspot? Do you have a port forward setup or something that you NEED a static local IP? If you can port forward, you can probably setup a MAC based IP reservation on the hotspot also.

 

[sahil.bhatnagar909]

So you don't use DHCP from the hotspot? Do you have a port forward setup or something that you NEED a static local IP? If you can port forward, you can probably setup a MAC based IP reservation on the hotspot also.

I made an app to send bytes to my pc through TCP sockets, and I need the server (PC) to have a static IP. I'll try to setup a MAC based reservation.

 

[sahil.bhatnagar909]

I made an app to send bytes to my pc through TCP sockets, and I need the server (PC) to have a static IP. I'll try to setup a MAC based reservation.

I don't think you can even change DHCP settings on android. I would need to root my device in order to do that.

 

[kanewolf]

I made an app to send bytes to my pc through TCP sockets, and I need the server (PC) to have a static IP. I'll try to setup a MAC based reservation.

So you have an app on your phone, which is also the hotspot. Have the app do an arp call based on the MAC address to get the IP address. If you do this then you can use DHCP from the hotspot.

Here is a thread talking about getting an IP address from the ARP cache -- https://stackoverflow.com/questions/42660034/access-arp-table-without-root-in-android

 

[sahil.bhatnagar909]

So you have an app on your phone, which is also the hotspot. Have the app do an arp call based on the MAC address to get the IP address. If you do this then you can use DHCP from the hotspot.

Here is a thread talking about getting an IP address from the ARP cache -- https://stackoverflow.com/questions/42660034/access-arp-table-without-root-in-android

Thanks man, I think this should work, I'll try it out and tell you