Bukkit server:won't go up help

So, I just got craftbukkit-1.7.2-R0.2 and I installed it completely right, but I feel like its the port because when I try to join it on minecraft it says can't reach server. I will take pictures of screen if needed, unfortunately I only have 4GB of RAM so I use 3.50GB RAM for it to run and the server loads up just I can't join it neither can my friends.

 

@bendragon13 You have to port forward your router to your computer, search either on YouTube for a tutorial. If you did that and your firewall is blocking the server port, then click here:
http://forums.bukkit.org/threads/firewall-issue-fix-windows-7-8.220600/

 

I am trying to open a server and I've done everything needed, but it says can't connect to server I have a Linksys E1200 could it be port forwarding I've done it on the website but I think that it won't let it through the router.

 

Merged similar threads.

 

brendragon13
Do you know how to access your router's firmware so you can set up port forwarding?

 

I have found what you are talking about how do I set it up

I tried to use 25565 but it told me failed to bind port that there might already be a server on it what do I do

 

Remove server-ip from the server.properties and leave it blank.