I have a variable that I receive from a login.aspx page, on the login page I consult a webservice that returns a token, said token sent it to a masterpage, where it is validated, if it is valid, loads the master page if not redirecciona to the login, this part is already done, the problem is when I want to continue browsing on the site every time I click on a link redirects me back to the login, I guess because it did not send the variable, How to do so bring that variable across the site?