Yes, you can open all ports in your router. First you have to reach your router’s WebUI.
1- go to Network -> Firewall -> Traffic rules.
2- Scroll to the bottom of the page where you will find a section "Add new instance". Here you need to select an instance type as Open ports on router, enter any name, choose the transport protocol and enter the port range 0 – 65535.
3- Finally, press Add. A configuration window will open where you can specify more details regarding the rule: source, destination IP and MAC addresses, action to be carried out. Once the rule is saved, and press Save & apply.
Kindly check the link for more details: Open Ports on Router
OR you can approach this one by using DMZ: DMZ