You are behind a router which supports Universal Plug and Play (“UPnP”), so you will need to make sure that port %(REMOTE_PORT)d on the router is forwarded to port %(REMOTE_PORT)d on %(default_interface)s.
You can make sure that port %(REMOTE_PORT)d is forwarded by telling the assistant to automatically manage the firewall, or by manually configuring your firewall and the router.
When you have set the router up, please tell the other person that your IP address is: <i>%(external_IP)s</i>
To make sure you're understood, you should pronounce it as:
<i>%(phonetic_external_IP)s</i>
