How to list all devices on the Windows or Linux home network

[Anda Lucite]

How does my Android phone figure out what's on my network without logging into the home router?

I can see 8 devices on the network when I log into the admin account of the router using a web browser on a laptop.

However, I can see all those devices from my Android phone WITHOUT logging into the router, simply by using "Fing" Android freeware:

My question?

How does the phone see both wired & wireless devices (such as a wired printer & a wired Ooma) without logging into the router?

More importantly, how can I get Windows & Linux to see the same 8 or 9 devices on my network that the phone sees *without* logging into the router's admin account?

[Whiskers]

It seems that there are versions of the Fing app available for desktop operating systems too . The 'Fing for Linux' option lists

RPM 64 Bit or 32 Bit DEB 64 Bit or 32 Bit TGZ 64 Bit or 32 Bit

there may already be a 'build' of the tarball for your distro (possibly in the 'testing' or 'user-contributed' or other 'unofficial' repositories).

[Anda Lucite]

The web page was nicely set up in that it provided the URL: $ wget "

"

$ ls -l

-rw------- 1 anda anda 6813808 Feb 21 12:58 download?plat=lx64&ext=deb

$ file down* download?plat=lx64&ext=deb: Debian binary package (format 2.0)

$ md5sum dow*

438145234207ffd08bb42a808d798eea download?plat=lx64&ext=deb

$ sudo dpkg -i download?plat=lx64 dpkg: error processing archive download?plat=lx64 (--install): cannot access archive: No such file or directory Errors were encountered while processing: download?plat=lx64

$ mv "download?plat=lx64&ext=deb" fing_lx64.deb $ sudo dpkg -i ./fing_lx64.deb Selecting previously unselected package fing. (Reading database ... 363292 files and directories currently installed.) Preparing to unpack ./fing_lx64.deb ... Unpacking fing (3.0) ... Setting up fing (3.0) ...

$ which fing /usr/bin/fing

$ file $(which fing) /usr/bin/fing: POSIX shell script, ASCII text executable

$ cat $(which fing) #!/bin/sh # # Copyright 2015 by Overlook

export LD_LIBRARY_PATH="/usr/local/lib/fing" export DYLD_LIBRARY_PATH=$LD_LIBRARY_PATH

ulimit -n 1024 ulimit -c unlimited

/usr/local/lib/fing/fing.bin $@

$ fing Fing init error while creating folder: boost::filesystem::create_directory: Permission denied: "/var/log/fing" Fing init error while creating folders and conf: boost::filesystem::create_directory: Permission denied: "/etc/fing" [overlook.util.logging.FileHandler] unable to open output file Error: no network interface detected please make sure you have administrative rights.

$ sudo fing

13:08:37 > Discovery profile: Default discovery profile 13:08:37 > Discovery class: data-link (data-link layer) 13:08:37 > Discovery on: 192.168.1.0/24

13:08:37 > Discovery round starting.

13:08:37 > Discovery error: unable to select a valid network interface to use

------ control c -------

$ man fing No manual entry for fing See 'man 7 undocumented' for help when manual pages are not available.

$ fing --help

=== overlook fing 3.0 -

===

Command line options: -h [ --help ] show this help message -v [ --version ] show fing version -i [ --info ] show network informations -n [ --netdiscover ] arg run network discovery -s [ --servicescan ] arg run service scan on host/network -o [ --output ] arg use output setup for discovery/scan/ping -P [ --profile ] arg use specific discovery/scan/ping profile -d [ --rdns ] arg enable/disable reverse DNS lookups -r [ --rounds ] arg number of rounds (network discovery) --session arg use specific discovery session file --silent force to silent mode --interactive start the interactive mode -p [ --ping ] arg run icmp ping on the hosts --sentinel run Fingbox Sentinel -w [ --wol ] arg send wake on lan on targets

Error: no network interface detected please make sure you have administrative rights.

$ sudo fing -n Error: required parameter is missing in 'netdiscover' INFO 2016/02/21 13:14:07 fing graceful exit.

$ sudo fing -I wlan0 Error: unknown option -I INFO 2016/02/21 13:13:37 fing graceful exit.

$ sudo fing -s Error: required parameter is missing in 'servicescan' INFO 2016/02/21 13:15:05 fing graceful exit.

$ sudo fing -s localhost

13:15:51 > Service scan on: localhost (127.0.0.1)

13:15:51 > Service scan starting.

13:15:51 > Detected service: 53 (domain) 13:15:51 > Detected service: 22 (ssh) 13:15:51 > Detected service: 21 (ftp) 13:15:52 > Detected service: 119 (nntp) 13:15:52 > Detected service: 139 (netbios-ssn) 13:15:52 > Detected service: 445 (microsoft-ds) 13:15:52 > Detected service: 631 (ipp) 13:15:52 > Detected service: 953 (rndc) 13:15:52 > Detected service: 8118 (privoxy) 13:15:52 > Service scan completed in 0.049 seconds.

------------------------------------------------------------------------------- | Scan result for localhost (127.0.0.1) | |-----------------------------------------------------------------------------| | Port | Service | Description | |-----------------------------------------------------------------------------| | 21 | ftp | File Transfer Protocol | | 22 | ssh | SSH Secure Shell | | 53 | domain | Domain Name Server | | 119 | nntp | Network News Transfer Protocol | | 139 | netbios-ssn | NETBIOS Session Service | | 445 | microsoft-ds | SMB directly over IP | | 631 | ipp | Internet Printing Protocol -- for one implementat | | 953 | rndc | RNDC is used by BIND 9 (& probably other NS) | | 8118 | privoxy | Privoxy,

|

-------------------------------------------------------------------------------

$ sudo fing -n localhost Error: in provided network: invalid argument Please provide network in format: address/len. E.g.: 192.168.0.1/24 which is a common class C LAN range. E.g.:

which is an internet class C LAN range.

$ sudo fing -n 192.168.1.1/24

13:17:29 > Discovery profile: Default discovery profile 13:17:29 > Discovery class: data-link (data-link layer) 13:17:29 > Discovery on: 192.168.1.0/24

13:17:29 > Discovery round starting.

13:17:29 > Discovery error: unable to select a valid network interface to use

--------control c---------

Well, I'm getting nowhere so, I'll ask how to use it and google some too.

How do I use fing on a typical linux computer on a home network?

[William Unruh]

Many many errors that could have been avoided but he finally learned.

So the key file is in /usr/local/lib/fing/fing.bin

What does route -n tell you? Does network 192.168.1.0/24 exist? What does ifconfig -a say?

It cannot find your network. That could mean many things. It could be incompetently written. It could be you have no network.

Note it worked for me-- wired network

It would be a lot better if it actually had source code. One could figure out what it was doing.

[Anda Lucite]

It works now that I have the syntax figured out!

Windows & Linux FINALLY matches what Android & iOS reported all along for *all* devices attached to the network! Thanks to Whiskers for suggesting Fing on Linux/Windows for listing out all the connected network devices.

Not a single other Linux or Windows command worked to date other than Fing. For example, neither arp-scan nor nmap worked to list *all* the devices on the network that fing on unrooted Android and iOS reported. $ nmap --script broadcast-dhcp-discover -p67 192.168.1.0/24 $ sudo arp-scan --interface=wlan0 --localnet

Yet fing worked perfectly once installed on the desktop computer!

$ sudo fing -n 192.168.1.0/24 -r 1

15:30:03 > Discovery profile: Default discovery profile 15:30:03 > Discovery class: data-link (data-link layer) 15:30:03 > Discovery on: 192.168.1.0/24 15:30:03 > Discovery round starting. 15:30:03 > Host is up: 192.168.1.11 HW Address: 00:80:05:AA:43:55 (CACTUS COMPUTER) Hostname: anda 15:30:03 > Host is up: 192.168.1.1 HW Address: 84:1B:5E:CC:A3:FF (Netgear) Hostname: router 15:30:04 > Discovery progress 25% 15:30:05 > Discovery progress 50% 15:30:06 > Discovery progress 75% 15:30:03 > Host is up: 192.168.1.3 HW Address: 00:18:61:00:A4:CE (Ooma) 15:30:03 > Host is up: 192.168.1.9 HW Address: F8:D0:AC:DD:5A:FF (Sony) 15:30:03 > Host is up: 192.168.1.10 HW Address: 00:14:22:FF:56:31 (Dell) 15:30:03 > Host is up: 192.168.1.5 HW Address: 40:B0:FA:88:33:A1 15:30:03 > Host is up: 192.168.1.8 HW Address: 40:B0:FA:88:33:A1 15:30:03 > Host is up: 192.168.1.2 HW Address: 5C:0A:5B:C4:22:51 (Samsung) 15:30:03 > Host is up: 192.168.1.4 HW Address: 00:1F:3B:AA:D0:4A (Intel) 15:30:04 > Host is up: 192.168.1.116 HW Address: 00:10:83:00:8A:FF (HP) 15:30:04 > Host is up: 192.168.1.200 HW Address: 00:16:B6:53:66:91 (Cisco-Linksys)

--------------------------------------------------------------- | State | Host | MAC Address | Last change | |-------------------------------------------------------------| | UP | 192.168.1.1 | 84:1B:5E:CC:A3:FF | | | UP | 192.168.1.2 | 5C:0A:5B:C4:22:51 | | | UP | 192.168.1.3 | 00:18:61:00:A4:CE | | | UP | 192.168.1.4 | 00:1F:3B:AA:D0:4A | | | UP | 192.168.1.5 | 40:B0:FA:88:33:A1 | | | UP | 192.168.1.8 | 40:B0:FA:88:33:A1 | | | UP | 192.168.1.9 | F8:D0:AC:DD:5A:FF | | | UP | 192.168.1.10 | 00:14:22:FF:56:31 | | | UP | 192.168.1.11 | 00:80:05:AA:43:55 | | | UP | 192.168.1.116 | 00:10:83:00:8A:FF | | | UP | 192.168.1.200 | 00:16:B6:53:66:91 | |

---------------------------------------------------------------

15:30:49 > Discovery round completed in 45.527 seconds. 15:30:49 > Network 192.168.1.0/24 has 11/11 hosts up. 15:30:17 > Host is up: 192.168.1.6 HW Address: 8C:29:37:AA:21:22

Notice that Android phone [phone] & 192.168.1.8) has two IP addresses!

Here is the fing result on the phone at the same time!

Finally computer results match unrooted iOS & Android results!

[Anda Lucite]

Please ignore this thread.

That final report was meant for a different set of newsgroups.

[Lewis]

Since we are talking about fing, is it possible to have fing return a chart like the above but including the vendor (if known) and the Client ID? I've been having to do it manually and it's a pain.

[Frank]

Your name of interest to me as I consult part time for Lucite International. I see you are making products from their monomers and polymer. Nice looking products.

[clare]

How about trying Belarc Advisor??