Um, does this help?
When adding the VPN profile, you need to provide your Mac administrator account password to allow the keychain access for NEIKEv2Provider. NEIKEv2Provider is a service responsible for establishing secure VPN connections. It requests the access to the keychain to receive the required authorization data for the VPN connection.
https://support.norton.com/sp/en/us/home/current/solutions/v138741680 - 10/26/2021
PE Rockwell:
Norton support, please read what the dialogs to enable VPN are asking. The advice you are giving is incorrect. They are NOT asking for an administrator password. They are asking for *your* password to access your login keychain.
https://community.norton.com/en/comment/8513810#comment-8513810
NortonLifeLock Employee:
Sorry for the typo,
Yes, you will have to use your keychain password to access the login keychain. Thanks @PE Rockwell for calling it out.
https://community.norton.com/en/comment/8513811#comment-8513811
Caveat: I'm not Mac user.