Use a web server upfront and check it's log.

I use nginx upfront, as a reverse proxy for OpenERP, so that is's accessed through HTTPS. Looking through nginx's log I'm able to check client IP addresses and the signatures for the browsers used.

https://www.odoo.com/forum/help-1/question/how-to-get-openerp-client-ip-74427

Hello. may the best way to modify http.py

looking for : class WebRequest(object):

    def init(self, params):
    self.params = dict(params)
    # OpenERP session setup
    self.session_id = self.params.pop("session_id", None) or uuid.uuid4().hex
    self.session = self.httpsession.get(self.session_id)
    if not self.session:
        self.httpsession[self.session_id] = self.session = session.OpenERPSession()
    self.session.config = self.config
    self.context = self.params.pop('context', None)
    #-----------------------------------------------------------------
    # add client ip to context
    if type(self.context) == dict:
            self.context['remote_addr'] = self.httprequest.remote_addr
    # ----------------------------------------------------------------               
    self.debug = self.params.pop('debug', False) != False

It's work for me on 6.1 Bye.

By default, Odoo supports the variable `request.httprequest.remote_addr` which trace the remote IP address in every single http request. 

So it should be the HTTP request modification which can be found at odoo/http.py file, read the logic business and try by yourself.