help!!How can I transfer video stream to internet(not local net work)

(YUN)Hi, I wonder how can I transfer video stream to internet(not local net work), and how can I save the video stream into my microSD card~~

sonnyyu:
...

  1. Sign public ip to arduino tcp/ip shield. direct connect. ( make sure turn firewall at tcp/ip shield)
  2. Put arduino tcp/ip shield into DMZ zone of firewall.
  3. Set port forwarding at firewall, forwarding port number.
  4. Set VPN client at arduino tcp/ip shield.
  5. Set Reverse SSH Tunneling at arduino tcp/ip shield.
  6. If you already have BPG/multi-homing, leave it alone and let Arduino have portable ips.

http://arduino.cc/forum/index.php/topic,144384.msg1113235.html#msg1113235

some kind of bridge, tunneling, porting...

One of above method will bring you Yun to Internet.