Recently I cannot access my docker container that use network other than host network after every boot or the docker container restart after appdata backup process. After some digging I found out that the problem is ip forwarding being disabled, and i have to type "sysctl net.ipv4.conf.all.forwarding=1" everytime after reboot or after appdata backup process. This is so frustating. Does anyone have solution for this to make the ip forwarding permanent and not revert after every boot?