Hello @Machist ,
Welcome to Microsoft Q&A Platform. Thank you for reaching out & hope you are doing well.
I understand you would like to setup Azure P2S VPN with Azure AD authentication & OpenVPN protocol and would like to confirm your VPN configuration & address pool requirement.
Yes, your understanding is correct. You can use an address pool of 10.1.0.0/24 as long as it does not overlap with the connecting Vnet (which it does not in case of 10.0.0.0/24) and your local network.
You can refer the below doc section for explanation on VPN address pool:
https://learn.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-howto-point-to-site-resource-manager-portal#addresspool
And you can setup your point to site VPN configuration following the steps explained in the below post:
https://learn.microsoft.com/en-us/answers/questions/772937/how-to-set-up-an-azure-vpn-gateway-from-a-remote-u.html
Kindly let us know if the above helps or you need further assistance on this issue.
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