LinuxVPNtoPfsense-Linux-Firewall

Interface

• cat /etc/network/interfaces

auto lo
iface lo inet loopback

auto ens160
iface ens160 inet static
	address 10.66.252.40 
	netmask	255.255.255.0
	gateway 10.66.252.1

auto ens192
iface ens192 inet static
	address 10.66.254.1
	netmask 255.255.255.0

auto ens224
iface ens224 inet static
	address 10.66.248.1
	netmask 255.255.255.0

VPN

* cat /etc/ipsec.conf
conn linux2pfsense
     authby=secret
     keyexchange=ikev1
     left=10.66.252.40
     leftsubnet=10.66.254.0/24
     right=10.66.252.10
     rightsubnet=10.66.253.0/24
     ike=aes256-sha512-modp4096
     esp=aes256-sha512-modp4096
     ikelifetime=28800
     keylife=3600
     auto=start

• cat /etc/ipsec.conf

10.66.252.40 10.66.252.10 : PSK "sysadm"