0- Installing vSRX and SRX

vSRX :  https://www.juniper.net/documentation/en_US/vsrx/topics/concept/security-vsrx-vmware-overview.html

SRX Release 15

https://www.juniper.net/support/downloads/?p=srx320#sw

Download Juniper vSRX – Firefly & Juniper E-Books

http://srijit.com/download-juniper-vsrx-firefly-juniper-e-books/

Old R12 or Firefly

https://www.juniper.net/support/downloads/?p=firefly#sw

or

http://srijit.com/download-juniper-vsrx-firefly-juniper-e-books/

Requirement:

https://www.juniper.net/documentation/en_US/firefly12.1x46-d10/information-products/pathway-pages/pathway-pages-vmware/security-virtual-perimeter-gsg/security-virtual-perimeter-gsg-vmware-pwp.pdf