To checkout (or perform any other svn command) svn content from repository outside the proxy, modify ther servers file:
-
Linux/Mac OS X:
vi ~/.subversion/servers
-
Window 7/Window Server 2008:
cd %USERPROFILE%\AppData\Roaming\Subversion
start servers
By uncommenting the following line and add your detail
http-proxy-host = your.proxy.com
http-proxy-port = 8000
http-proxy-username = defaultusername
http-proxy-password = defaultpassword
http-proxy-port = 8000
http-proxy-username = defaultusername
http-proxy-password = defaultpassword