To be able to dcc send froward all the required ports both tcp and udp. Enable DMZ for your ip if you are in a router.
Install irc and then sysreset as shown in this link. http://xoomer.virgilio.it/fipine/mirc.htmlhttp://xoomer.virgilio.it/fipine/sysreset.html
They are in Italian but simply follow the pictures.
In addition in the tools-options-dcc-fserve tick everything.
You do not have to configure your sysreset as if you were setting up an fserve just use it to chat as if it was a simple irc.
or just set up a silent trigger so that you do not get banned from non sharing channels.
Choose sysreset-fileserver manager-serverconfig-and on the right there is a tab where you can choose basic or advanced options. Choose advanced and on the left tick firewall walkaround. this should do it.
Maybe I did not explain well but it should be simple.