iChat Video Chat/Voice Chat/Screen Sharing do not work for me when on my laptop via my router. I'm using OS X 10.5.6 and using Airport Extreme with Firmware version 7.4.1 (the latest). Current settings on Airport Extreme are
1)Enable Nat Port Mapping Protocol(enabled)
2)Give my computer the same IP address based on it's DHCP Client ID (IP Address 192.168.1.100)
3)Forward following TCP/UDP ports to 192.168.1.100: 5060, 5190, 5297, 5298, 5353, 5678, 16384-16403, 5220, 5222, 5223
Everything works when I'm plugged directly into my Westell 6100 DSL Modem (which is currently configured as a bridge. By default it comes configured as a router w/just one ethernet port).
1)Enable Nat Port Mapping Protocol(enabled)
2)Give my computer the same IP address based on it's DHCP Client ID (IP Address 192.168.1.100)
3)Forward following TCP/UDP ports to 192.168.1.100: 5060, 5190, 5297, 5298, 5353, 5678, 16384-16403, 5220, 5222, 5223
Everything works when I'm plugged directly into my Westell 6100 DSL Modem (which is currently configured as a bridge. By default it comes configured as a router w/just one ethernet port).