How to find specific IP address within LAN? With the setup I used to have I was able to control the home-domotica system via the wireless network of the time-capsule (app iPhone).

10.0.1.152

However today I had to move the time-capsule to it's permanent place.
This meant a change in the setup.

Where it used to be that the time-capsule and the domotica system were plugged-in in the same switch there is now a second switch involved.

Internet

|

Router

|

Switch - Domotica system

|

Switch - time-capsule

Now this has of course an influence on all. Yet I cannot find out the IP address the app should contact.

arp -a Gave me a list. Initially I got 9 hits. But none of them work.

A nasty side-effect is that I cannot access some of the lights anymore....
Need to find a way to access the correct address through 2 switches...
So the router is the only DHCP server, right? It is the only device giving out IP addresses, and the switches (including the time-capsule) just redirect the traffic (i.e. bridge mode), right?

If I am not mistaking, the client list in your router should provide you with the list of all connected devices with mac-addresses and ip-addresses (and sometimes device names). Try and see if the mac address of your device is in there.