Hello Everyone,
I was testing VTI tunnel and by default strongswan install routing tables 220 which cause vti tunnel not route traffic correct direction.
Solution to this problem is set the following parameter into strongswan.conf

install_routes = 0

Will be nice to have proper cli flag when we set vpn tunnel vti bind.

As example

#New option
set vpn ipsec site-to-site peer 1.1.1.1 vti install_route  disable

set vpn ipsec site-to-site peer 1.1.1.1 vti bind vti0
set vpn ipsec site-to-site peer 1.1.1.1 vti esp-group LAN2LAN-P2