You can use ftp.opendesign.com.
Username and password are the same as for logging in to the main member download page. Your default directory will be a private home directory that can be used for uploads. Upload your file(s) here.
Place a link to the newly uploaded file in your JIRA report using the following format:
https://www.eu.opendesign.com/clients/<your username>/<uploaded file name>
Example:
https://www.eu.opendesign.com/clients/myname@mycompany.com/VpError.dwg
Note that this link will not be accessible to you via HTTP, but it will be accessible to our development staff, saving us time when processing the issue.