If you are running a minecraft server behind your router then you need to setup a port forward in order to allow your friends to connect.
How to Port Forward a Minecraft Server - Step-by-Step
How to Portforward Minecraft (with Pictures) - wikiHow
How to Port Forward on Your Router : HelloTech How
How to Host and Configure a Minecraft Server with No-IP
Port Forwarding for Minecraft - NETGEAR Communities
Port Forwarding for Minecraft - NETGEAR Communities
How to Portforward Minecraft (with Pictures) - wikiHow
How to Port Forward Minecraft Server? – Here's a Full Guide
How to Port Forward a Minecraft Server - Step-by-Step
How to Port Forward a Minecraft Server - Step-by-Step
Allowing Minecraft Traffic Through the Firewall | Understanding Networking as It Relates to Minecraft | InformIT
How to Setup a Minecraft Java Server + Port Forward Your Router - YouTube
Port forwarding | MC Server Soft Documentation
How to Port Forward on Your Router : HelloTech How
How To Port Forward: Port Forwarding Tutorial With Example
How to Do Port Forwarding for Minecraft
How to Portforward Minecraft (with Pictures) - wikiHow
How to port forward on "My" huawei modem (Minecraft Server) - Super User
How to Port Forward a Minecraft Server - Step-by-Step
How to Portforward Minecraft (with Pictures) - wikiHow
How To Port Forward A Minecraft Server - YouTube
Minecraft server port forwarding on asus router : r/Minecraft
Setting up a Minecraft server
How to Portforward Minecraft (with Pictures) - wikiHow
How to Portforward Minecraft (with Pictures) - wikiHow
