How to do IP forwarding in RancherOs

Currently we have node with RancherOs installed and we have two network interface (eth0 and eth1) attached to the node. And we want to do IP forwarding from eth1 to eth0.

Please help me with cloud-config configuration in order to achieve this.

https://rancher.com/docs/os/v1.x/en/installation/configuration/sysctl/