The VPN of Bluemix Infrastructure may not connect well from site for VPN connection. One of the reasons is Firefox has limited support for NPAPI. (Same for Chrome)
I think there are various target methods, but here I will explain how to connect to a VPN using an application called ** MotionPro ** without using a VPN site on the browser. To be honest, it's really easy to use this without plug-ins.
Go to KnowledgeLayer and follow the instructions http://speedtest.dal05.softlayer.com/array/ArrayMotionProSetup_MacOS_v1.1.2.dmg Download. (For MAC) Extract the downloaded file. (Double-click on "MotionPro.pkg" in the photo and follow the guide Microsoft Remote Desktop is also included, so drag and drop the icon on the left to the right to use it as well.)
A screen like the image below will appear, so click the empty part with two fingers and click "Add" that appears. (The first line of the screen is the setting for VPN connection to the Tokyo data center of Bluemix Infrastructure)
Enter the required information in the profile. You can also save the password by checking the "Save password" check box. Press the save button when you are done. After saving, you can connect to the VPN by double-clicking the site name of the corresponding VPN.
Edit your user profile by pressing your name at the top of Bluemix Infrastructure. Use the VPN Username written there and the password you entered arbitrarily. Don't forget to enable SSL VPN in "Account"-"User"-"VPN Access")
Enter the following command in the terminal
nslookup <vpn site url>
In
vpn.ams01.softlayer.com vpn.ams03.softlayer.com vpn.dal01.softlayer.com vpn.dal05.softlayer.com vpn.dal06.softlayer.com vpn.dal07.softlayer.com vpn.dal09.softlayer.com vpn.sea01.softlayer.com vpn.wdc01.softlayer.com vpn.wdc04.softlayer.com vpn.hou02.softlayer.com vpn.sjc01.softlayer.com vpn.sjc03.softlayer.com vpn.sng01.softlayer.com vpn.atl01.softlayer.com vpn.chi01.softlayer.com vpn.den01.softlayer.com vpn.lax01.softlayer.com vpn.mia01.softlayer.com vpn.nyc01.softlayer.com vpn.hkg02.softlayer.com vpn.lon02.softlayer.com vpn.sao01.softlayer.com vpn.mil01.softlayer.com vpn.mel01.softlayer.com vpn.tor01.softlayer.com vpn.mex01.softlayer.com vpn.fra02.softlayer.com vpn.par01.softlayer.com vpn.syd01.softlayer.com vpn.che01.softlayer.com vpn.mon01.softlayer.com
So far! Thank you for your hard work.