Best way for transfer ipcamera between 2 router

Hi,
We have existing network that connected with two router by fiber and a new ipcamera network and I want to transfer this new network that is connected to one port of a router and receive it in a port from other router.
These networks have to different ip subnet.
What is the best way!

You create an EoIP tunnel between the 2 routers and bridge it with the interfaces you wish to use for IP cameras (on both ends).