what’s FON ?

FON is a Global Community of people who share WiFi. Share your WiFi broadband access at home/work and enjoy WiFi all over the world! FON: small cost, great benefit!

官網
台灣中文網
FON blog (台灣)

(創辦人 Martin 手上拿的就是自製的小型router，售價約一千出頭)

簡單講，這是一個大家分享 wifi router 的活動，理想是如果大家都願意開放自已多餘的無線頻寬，那將來每個人走到那裏都也都可享受到無線網路。

這個活動在台灣的主要合作/協力廠商是 Yam, 中研院OSSF與智邦科技，所以可說一開始就有產、學與媒體的參與，成功機率應該頗大。

通常要一個人分享自已的wifi，最常見的問題就是：安全性呢？

安全性的考量主要有兩種：

1、如果人家用我分享出去的網路入侵 [PUT NAME HERE](例如五角大廈) 將來被被查到該怎麼辦？

2、一般的 wifi router 往往也兼俱 NAT 可讓區網內多台電腦分享網路，如果讓外人進來了，那是不是區網內所有電腦也就都*分享*出去了？

第一個問題的答案在FAQ裏有簡單提到：

How secure is FON?

FON is not a community of anonymous users. Every active Fonero will have identified him/herself to FON through the registration process. Remember that connecting to a FON access point is only possible for registered users. This process facilitates security for the users of our WiFi Community.

Am I responsible if a user uses my connection for illicit activities?

No. As long as you have not actively participated in the commission of a crime or do not have knowledge that a particular individual is using your connection to commit a crime or illegal activity, it is our understanding that you are not responsible. Nevertheless, this may vary depending on the laws of each country. Furthermore, FON discourages any inappropriate use of your connection by making sure that each user of the FON Community has registered and is identifiable.

可惜重點在紅色那句。

(FON router, 目前有超級便宜價，約250元 <--比華納電影票便宜喔)

至於第二個問題，據目前的瞭解，FON 用 Linux寫成的 os 做為 router 的 kernel，所以不一定同時俱備 NAT 或分享區網的功能(當然我還見到機器目前只能用猜的)，所以大概不成問題。

所以簡單講，如果二不是問題(例如 FON自製的router完全沒有存取內部網路的能力)，我到是不介意在自用的 router之外，再擺一台靠近窗口給社區用，當然，前提是要先弄到一台