Give my first (free) Android Play Store app a try: Subnet Scanner

Thanks will check it out. I use an app called Fing to scan IP range & ports (one IP at a time) currently.
 
I tried my app on the local pubs wifi. It found more open ports than the popular Ping Tools. It found an open Telnet port on the router. I downloaded a Telnet client over their wifi. Connected and the router happily identified it's model. A quick Google search gave me the default login for that model. Worked. Full control of said router. Another search gave me detailed command options. Logged off. Test completed, yip scary.

So it's worth checking your network ...


Eish says my router telnet is open

If I trust someone enough to give them access to my wifi I trust them not to try and find a hole... But in any case none of the people I hang out with has a clue about tech so I am probably safe :p
 
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Rather slow if it's not in the foreground (Nexus 7 2012 4.4.2).

Seems to hang when it gets to the device's own IP address. (Yip, definitely hung - had to kill it. Don't know if flitting between the app and Tapatalk had anything to do with it dying.)
 
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New version will be published this morning that fixes the speed and reliability issues.
 
Version 6:

- New layout to suit smaller screens.
- Prompt user if wifi is not enabled.
- Confirmation when cancelling a scan.
- New ping free method of determining if there is a device at an IP address. Removes unresponsiveness and crashes.
- Responsive cancel button.
- Faster scanning.
- Scan each subnet IP address from 1 to 254 (broadcast IP's excluded).

Will be available in the next hour or two.

More to come ...
 
Rather slow if it's not in the foreground (Nexus 7 2012 4.4.2).

Seems to hang when it gets to the device's own IP address. (Yip, definitely hung - had to kill it. Don't know if flitting between the app and Tapatalk had anything to do with it dying.)

It is paused when in the background like regular apps. To make it run in the background I'll need to convert it to a service.
 
If I trust someone enough to give them access to my wifi I trust them not to try and find a hole... But in any case none of the people I hang out with has a clue about tech so I am probably safe :p

True. Only problem with router telnet ports are that the username and password is not the same as the web login so they are usually left at the default. In fact you'll probably have to telnet in to change the password.
 
Some screenshots, Galaxy S2 4.x inch display. Cut off on the sides. The scanning started in landscape, but when I checked something else and returned by long pressing the middle button, it's portrait view.

In portrait view when I cancelled at about 70, the ad started sliding in but stopped as per screenshot, halfway.
 

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Some screenshots, Galaxy S2 4.x inch display. Cut off on the sides. The scanning started in landscape, but when I checked something else and returned by long pressing the middle button, it's portrait view.

In portrait view when I cancelled at about 70, the ad started sliding in but stopped as per screenshot, halfway.

For devices with screens less than 6" I lock it to landscape. When you pause and resume I assumed it will still be locked but I guess not. Will fix, thanks.

Btw I changed the layout. In the left column is only the last value of the IP address e.g. 192.168.1.1 displays only 1. I now always display the 192.168.1.x at the top so it was a duplication.
 
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