大部分像是Obfs4之類的可插拔式傳輸工具，都仰賴「橋接中繼站」來運行， 橋接中繼站跟普通的洋蔥路由中繼節點一樣，都是由志願者所架設與維護的，但差別在於這些中繼站並未被公開列於清單中，因此網路封鎖者比較不容易發現他們的存在。

雖然說橋接中繼站搭配可插拔式傳輸工具可以隱藏您的洋蔥路由網路連線活動，但是跟直接連上普通洋蔥路由中繼節點相較之下，連線速度會明顯慢上許多。

其他像是meek這種可插拔式傳輸工具，在突破網路審查過濾的技術則較不同，它並不需仰賴橋接中繼站，因此您不需要事先取得橋接中繼站的位址來使用這些傳輸工具。

取得橋接中繼站的位址

由於橋接中繼站的位址並非公開的，所以您必須要自行提出要求索取，取得的方式有下列幾種：

  • 造訪 https://bridges.torproject.org/ 並依照步驟指示進行，或
  • 透過Gmail或是Riseup寄送電子郵件到 bridges@torproject.org
  • 使用Moat在洋蔥路由瀏覽器中抓取橋接中繼站。
  • Send a message to @GetBridgesBot on Telegram. Tap on 'Start' or write /start or /bridges in the chat. Copy the bridge address and on:
    • Tor Browser Desktop: Click on "Settings" in the hamburger menu (≡) and then on "Connection" in the sidebar. In the "Bridges" section, from the option "Enter a bridge address you already know" click on "Add a Bridge Manually" and enter each bridge address on a separate line.
    • Tor Browser Android: Tap on 'Settings' (⚙️) and then on 'Config Bridge'. Toggle on 'Use a Bridge' and select 'Provide a Bridge I know'. Enter the bridge address.

Moat的使用方式

If you're starting Tor Browser for the first time, click on "Configure Connection" to open the Tor settings window. Under the "Bridges" section, locate "Request a bridge from torproject.org" and click on "Request a Bridge..." for BridgeDB to provide a bridge. 在通過Captcha驗證後點擊「送出」。 點擊「連線」以儲存您的設定。

Or, if you have Tor Browser running, click on "Settings" in the hamburger menu (≡) and then on "Connection" in the sidebar. In the "Bridges" section, locate "Request a bridge from torproject.org" and click on "Request a Bridge..." for BridgeDB to provide a bridge. 在通過Captcha驗證後點擊「送出」。 您所作的任何設定，都會在該分頁被關閉時自動儲存。

Request a bridge from torproject.org

輸入橋接中繼站位址

If you're starting Tor Browser for the first time, click on "Configure Connection" to open the Tor settings window. Under the "Bridges" section, from the option "Enter a bridge address you already know" click on "Add a Bridge Manually" and enter each bridge address on a separate line. 點擊「連線」以儲存您的設定。

Or, if you have Tor Browser running, click on "Settings" in the hamburger menu (≡) and then on "Connection" in the sidebar. Under the "Bridges" section, from the option "Enter a bridge address you already know" click on "Add a Bridge Manually" and enter each bridge address on a separate line. 您所作的任何設定，都會在該分頁被關閉時自動儲存。

Enter bridge addresses manually

如果連線失敗，表示您收到的橋接中繼站可能已經被關閉。請使用上述任一方法取得其他橋接中繼站位址並重試。

BRIDGE-MOJI

Each bridge address is represented by a string of emoji characters called Bridge-mojis. The Bridge-mojis can be used to validate that the intended bridge has been added successfully.

Bridge-mojis are human-readable bridge identifiers and do not represent the quality of connection to the Tor network or the state of the bridge. The string of emoji characters cannot be used as input. Users are required to provide the complete bridge address to be able to connect with a bridge.

Bridge-moji

The bridge addresses can be shared using the QR code or by copying the entire address.

Bridge QR code