I have got a mikrotik router configured with a lan ip address on bridge interface of 10.0.1.1 - 255.255.255.0.

All the devices in the subnet 10.0.1.1-10.0.1.255 are both pinging router and reaching internet.
Now I want to add retrocompatibility for some devices which has got 10.0.5.4 address with subnet 255.255.255.0 and gateway 10.0.5.1

SO i configured an IP address of 10.0.5.1/255.255.255.0 to mikrotik bridge interface and I configured my local pc to fixed IP address of 10.0.5.2/24.
From my pc I can ping both 10.0.5.1 (router) and 10.0.5.4, but I cannot ping google.com or 8.8.8.8 .

How to solve this issue and make the devices in 10.0.5.x goes to internet?