If you have marked any disability need in your IGF 2017 registration, you will be contacted by the IGF Secretariat to assist you.
The UN Office at Geneva (UNOG) makes available the following accessibility information for persons with disabilities: Accessibility at UNOG
The UN Office of the High Commissioner for Human Rights (OHCHR) has also produced a very thorough accessibility guide for the Palais des Nations/UNOG: HRC Guide on Accessibility