It is. If you have an FTP or SSH server running on the destination machine, you can connect via the local IP address.
Running filezilla server this occurs: Please configure the passive mode settings and forward a range of ports in your router.
You need to provide more information about what you’re doing before someone can help you.
Please define “networking stuff”.
I can’t emphasize enough that you have to communicate clearly and not leave any details out. If you are not precise and thorough in your request for help, you cannot expect people to be willing to help you for long.