Freebsd strongswan

Install

• pkg install strongswan

Enable

• sysrc strongswan_enable=YES

Check

• ipsec restart

Stopping strongSwan IPsec...
Starting strongSwan 5.6.0 IPsec [starter]...
no netkey IPsec stack detected
no KLIPS IPsec stack detected
no known IPsec stack detected, ignoring!

This message should not bother you

• sockstat -4 | grep 500

root     charon     4110  13 udp4   *:500                 *:*
root     charon     4110  14 udp4   *:4500                *:*

Config

• /usr/local/etc

Example to another strongswan

• strongswan zu strongswan