Backup diff of NAT vs current(No. 1)

• Backup list
• View the diff.
• View the diff current.
• View the source.
• View the backup.
• Go to NAT.

NAT越え

• Skype

• PART2　Skype、その通信の仕組み (3/4)
  • http://www.itmedia.co.jp/enterprise/articles/0505/30/news070_3.html

• STUN