I was trying to encrypt a ftp data using IPSec in RHEL 7 server and client. I have followed this link https://libreswan.org/wiki/Host_to_host_VPN. I'm running 'get' to get a file from server using ftp and capturing packets from both client side and server side using tcpdump. Problem is, the capture in client side is encrypted whereas in server side it is not encrypted. Can anyone please explain? Thanks in Advance.