NFS 4.1 is been supported since vSphere 6.0 and  but now we are looking into providing stronger security. In vSphere 6.5 we have better security  by providing strong cryptographic algorithms with Kerberos (AES). Also, IPV6 is supported but not with Kerberos and that is another area we are looking into along with supporting integrity checks.

Aa we know vSphere 6 NFS client also does not support the more advanced encryption type know is AES. So lets take a look at what is new in vSphere 6.5 NFS in terms of encryption standard :

 Summary:

• NFS 4.1 has been supported since vSphere 6.0 ,
• Currently support stronger cryptographic algorithms with Kerberos authentication using AES ,
• Introducing Kerberos integrity check (SEC_KRB5i) along with Kerberos authentication in vSphere 6.5,
• Adding Support IPV6 with Kerberos ,
• Added Host Profiles support for NFS 4.1 ,
• Better security for customer environments .