Svn Access through a Proxy

The Subversion client can go through a proxy, if you configure it to do so.

First, edit your servers configuration file to indicate which proxy to use. The file's location depends on your operating system. On Linux or Unix it is located in the directory ~/.subversion. On Windows it is in %APPDATA%\Subversion (try echo %APPDATA%, note this is a hidden directory).
Example: Edit the servers file and add something like at global session:

[global]
http-proxy-host = your.proxy.name
http-proxy-port = 3128

Check your internet browser setting, if you have only a proxy configuration, for example http://proxyconf.some.name. You can simply open this link using your browser and download the configuration script, I believe you can find the proxy server and the port.