I'm installing a new router on a home network and the new router's routing table is as follows: 
[![enter image description here](https://i.stack.imgur.com/O5fqO.png)](https://i.stack.imgur.com/O5fqO.png)

The gateway shown here is the modem which used to also be used as a router. Now is this a problem that the gateway seems to follow completely different ip subnetting? Are there any disadvantages to this? 

all connected devices on 192.168.0.X have no problems accessing the internet.