iChat is an instant messaging program for Apple Mac computers.

Use “Open Ports” on Vigor Router to allow incoming traffic while using iChat.

iChat uses the following ports.

  • 5060 (UDP)
  • 5190 (TCP) File Sharing
  • 16384-16403 (UDP) to video conference with other clients

If you still have trouble with iChat,  select “Accept Incoming Fragmented UDP Packets (for some games, ex. CS)” in Firewall>>General Setup configuration menu