How to implement access from Linux to the share of a machine that is not in the domain?

Question

Debian

There is a Windows server without a domain with a share (c1)
There is a Windows domain (2008r2) (c2)
there is a debian that is entered into this domain (deb)
The task is as follows:
if I access the shares from the deb that are in the domain, everything is
fine to the c1 share from the deba, then a connection error is issued, it does not even ask for a login / password.
If I cling to the ball c1 from c2 or another screw machine, then it displays an authorization dialog.
How to access c1 share from deba?

Answer 1

mount -t cifs -o username=USER,password=PASS //path/to/share /path/to/folder

password can be skipped, will ask later