L2tp ipsec on openwrt

i have bough a vpn ipsec client, how i can enable l2tp ipsec on openwrt?
also pptp is possible?

Thanks.

PPTP is technically possible, but should never be used. It is trivially easy to hack and is considered unsafe for use. I would recommend against PPTP (it has been entirely deprecated and removed from common OS's like iOS and Mac OS).

L2TP/IPSec is compartively difficult to setup relative to other more modern VPN solutions.

Does your VPN support WireGuard? Or OpenVPN? I would recommend these two (in that order) insted of LT2P

For L2TP/IPSec, see this section o the wiki:
https://openwrt.org/docs/guide-user/services/vpn/strongswan/start

honestly i want connect using l2tp or pptp, no problem if its not secure

how i can connect using pptp or l2tp ? there is good tutorial for this?

Thanks.