openvpn p12 file creation

openssl pkcs12 -export -in client.crt -inkey client.key -out client.p12 -name MyClient

https://syedali.net/2014/02/17/using-chromebook-to-connect-to-an-openvpn-server/

http://www.frogiswrong.com/blog/articles/8/openvpn-on-openwrt-a-little-more-detail