Redirect URL to a controller method

[eluser]himanshuy[/eluser]
I am trying to develop a service using codeigniter.
There are two urls I have to handle to initiate communication with client app.
How would redirect these url's to my controller's method which will return desired response? URL structure is predefined and I can't change it.

URL1: http://EnterpriseEnrollment.mydomain.com...covery.svc (GET)

URL2:https://EnterpriseEnrollment.mydomain.com/EnrollmentServer/Discovery.svc (POST)