Network Map on Console

[Scby]

Hi,
I would like to obtain the same list as is shown by the Network Map on the web interface. I already tried arp -a but it does not list all devices. I have to mention that my Asus RT-AC87U runs in AP Mode.

I tried to find the source that generates this list but I got lost. On the device I found ./www/device-map/clients.asp but I did not find it in the merlin source.

I want to use the router to send an HTTP-Querry (IFTTT Webhook) if a specific MAC-adress is detected in the Network and if the MAC-adress has left the Network.
Propably nmap could be a solution but I don't want to put a thumb drive for entware into the router for such a small script.

Any help or hints are greatly appreciated!

 

[JDB]

You could actively arping it every minute.
I use this method to detect if one of my devices is connected.


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[Scby]

I cannot get it to work with the broadcast.
The following command does not get any response.

admin@RT-AC87U-DF68:/# arping -I br0 -b -s 192.168.0.3 192.168.0.255
ARPING to 192.168.0.255 from 192.168.0.3 via br0

I doubt that all my devices block broadcasts.
Pinging a specifc IP works through arping with the argumends I used above. Did I mis something?

 

[JDB]

Yea broadcast doesn’t seem to work for me either.

Can you assign a DHCP reservation for the device so you always know it’s IP, then either ping or arping that unicast address?


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