The os.environ["REMOTE_ADDR"] will contain the IP address of the user only in case of CGI call. In case of odoo (openerp), the server will start in WSGI mode, in which case the IP address will be in the environ attribute attached to the request object passed to the server. Unfortunatly, there is no simple way to access the request object since it is not part of the global variables. One workaround would be to wrap the wsgi_handler method in wsgi_server.py to intercept the environ variable pass to the method from which you can read the REMOTE_ADDR and store it in a global variable. Once you have this, you can access the global variable from the methods in your model.

Use the following chunk of code , change it according to your need

USER_PRIVATE_FIELDS = ['password']

@api.model
def _check_credentials(self, password):
    result = super(LoginUserDetail, self)._check_credentials(password)
    ip_address = request.httprequest.environ['REMOTE_ADDR']
    vals = {'name': self.name,
            'ip_address': ip_address
            }
    self.env['login.detail'].sudo().create(vals)
    return result

this is good solution.. but if i dont have internet it not work "as i think" there is no any code in openerp to get the IP without any third party?