How can i access my ip:my port [closed]

The first thing you need to do is see if anything is listening on 192.168.1.111:3000. Try a netstat -ntl and see if either 192.168.1.111:3000 or 0.0.0.0:3000 (wildcard) is listed under "local address". If not, you have at least 3 choices:

  1. Configure the application to listen on 192.168.1.111 or 0.0.0.0.
  2. Configure your firewall to forward the application packets to 127.0.0.1:3000
  3. Run a reverse proxy setup (such as apache or nginx) to forward the application traffic to 127.0.0.1:3000

Any of the above should work, but personally I prefer #3 for browser-based apps.