Before we can forward ports for mIRC, we need to set the ports that Mirc uses. Here is a brief walkthrough on how to do that. Go ahead and open up mIRC.
Click View in the menu at the top of your screen. In the list that drops down click Options.
On the left hand side of this new page click the plus sign in front of Connect. In the list that drops down click the Options link. There should be an Advanced button on this page. Go ahead and click it now.
Make sure there is a checkmark in the DCC checkbox. We will be using 10051 through 10070 as our port range in this example, but you can choose any port range you like. If you decide to choose another port range, you will need to forward the ports you chose instead of 10051 to 10070. The port range we are using in this example gives us plenty of ports for DCC file transfers. Once you have set the ports to use click the OK button all the way out to mIRC's main menu.
To setup port forwarding on this router your computer needs to have a static ip address. Take a look at our Static IP Address guide to setup a static ip address. When you are finished setting up a static ip address, please come back to this page and enter the ip address you setup in the Static IP Address box below.
Click the Applications button near the left side of the page.
Click the Utilities button near the right side of the page.
Click the AirPort Admin Utility button near the right side of the page.
Click the Port Mapping button near the top of the page.
Click the Add button near the right side of the page.
We will list a series of lines here that will show you exactly how to forward the ports you need to forward. mIRC DCC - IRC DCC requires you to forward the 1024-5000 ports. Go ahead and enter the settings shown above into the Port Mapping Add menu and then click Ok.
You should see another page of settings that need to be entered into one of the blank lines on your routers Port Mapping Add page. Go ahead and enter those settings and then click Ok.
When you're finished, click Update near the bottom of the screen to save your changes. And that's it! You're done!