The most appropriate IP address for the router in a SOHO network configured with the private IP address range of 192.168.1.0/24 would be 192.168.1.1.
Here's the reasoning:
- 192.168.1.0/24 defines the range of IP addresses from 192.168.1.1 to 192.168.1.254 for hosts in this subnet.
- 192.168.1.1 is commonly used as the default gateway address for devices in this range, making it a suitable choice for the router.
- 192.168.1.255 is the broadcast address for that subnet and cannot be assigned to a router or any individual device.
- 192.168.2.1 falls outside of the defined subnet (192.168.1.0/24) and would not be appropriate for a router in this network.
- 203.0.113.1 is a public IP address and is not suitable for use in a private network.
Thus, the best choice is 192.168.1.1.