It is necessary to develop (or modify, see below) an interface in OpenWrt standard Luci (latest version 22.03) to configure the VPN IPSec iKEv1 / iKEv2 protocol (L2TP) with PSK or certificates (both must works apart). It must work with CISCO standard IPSec/L2TP in site-to-site mode and with internet redirection mode.
There is a sample implementation of Open Source, but it only supports iKEv1 PSK, it can be modified to support needed modes. More details in private discussion.
Please, start you proposal only if you detailed read project and write at start:
I have read and fully understand your project!
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I have read and fully understand your project! Hi, I can help you in that fields. I am majoring in full stack and I can do it well. I am looking forward to work with you. Regards.
Hello I understood your requirement but I have few doubts, text me so I can clear all my doubts right away, I can help you and i am ready for work. Thank you.