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.
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