Quick question - I was learning about subinterfaces and using Cisco Packet Tracer I wanted to create simple network with two computers (every in different networks (192.168.1.1/24 and 192.168.2.1/24 and different VLAN) and using one router connect them. So my problem is that when I was typing the network `R1(config-subif)#ip address 192.168.1.10 255.255.255.0`
 wasn't working while `R1(config-subif)#ip address 192.168.1.1 255.255.255.0`
 was working.
I'm just curious why there is there difference because both 192.168.1.1/24 and 192.168.1.10/24 will give 192.168.1.1 - 192.168.1.254 host adresses.

Edit:
So to be more precise I was just pinging two computers and there was "Request timed out" message.
[![enter image description here][1]][1]


  [1]: https://i.sstatic.net/u0gx5.png