Specify firewall type using CData ADO.NET Provider for SharePoint
Connection string
This CData ADO.NET Provider for SharePoint connection string can be used for connections to SharePoint.
URL=http://sharepointServerName/;User=myUsername;Password=myPassword;
Firewall Server=fireWallIPorDNSname;Firewall User=fwUserName;
Firewall Password=fwPassword;Firewall Type=SOCKS5;
Valid values for "Firewall Type" is TUNNEL, SOCKS4 and SOCKS5. TUNNEL uses port 80 as default. SOCKS4/5 uses port 1080 as default.