Thanks guy, it appears that under traffic selector you have an option where you can define A HOST or Network. However what I Did since I need to go out from ONE HOST to A network I did host for source and destination for network.
So when I change it to Network for source and network for destination it started to work. However this is the weird part I had two traffic selector using the same IPSEC policy and they were host for source and destination for network, one was working and other wasnt it.
I dont know whether f5 only allows you to do host to host and network to network ..... does anyone know?
No changes were made to forwarding VIP....