- For Azure Data Lake Storage (ADLS) Gen 1, the VNet Integration capability is only available for virtual networks within the same region. Also note that virtual network integration for ADLS Gen1 uses the virtual network service endpoint security between your virtual network and Azure Active Directory (Azure AD) to generate extra security claims in the access token. These claims are then used to authenticate your virtual network to your Data Lake Storage Gen1 account and allow access. The *Microsoft.AzureActiveDirectory* tag listed under services supporting service endpoints is used only for supporting service endpoints to ADLS Gen 1. Azure AD doesn't support service endpoints natively. For more information about Azure Data Lake Store Gen 1 VNet integration, see [Network security in Azure Data Lake Storage Gen1](../data-lake-store/data-lake-store-network-security.md?toc=%2fazure%2fvirtual-network%2ftoc.json).
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