Passing User Credentials with Mount Command

My HP-UX server currently mounts a directory on a Windows 2012 server. The Windows server allows anonymous connections for RW and this configuration has worked well for years. Now, due to tightening security requirements I can't use anonymous. I also can't setup Identity Mapping on the Windows side. I'm looking for a way to pass credentials to the Windows server during the Mount operation that would allow RW permissions. Is this possible? I know I can create passwd and group files on the Windows server that would map the Unix identity but I don't know how to specify what identity is used for the Mount.
Thanks,
Joe

How do you mount? e.g. smbmount allows to specify username and password, or a credentials file name.

I am mounting the directory as NFS using the Mount command. dbf shows the mount as follows (sanitized for my protection):

 WinServer:/c:/appshare 52068344 39455488 1260064 76% /apps/live/appshare/shippers

Does this answer the question?
Thanks,
Joe

For this I used to use an NFS Gateway:

https://support.microsoft.com/en-us/kb/324085

I am using MS Services for NFS so I have the NFS share available. Just need to pass credentials from the Unix side to Windows.

https://support.microsoft.com/EN-US/kb/324073

This is what I had to do at the time... as I have no more shares of this sort now...