Url to access the Service is different from the one used to Generate Proxy(IIS7

Good Day All

i have a IIS server. This IIS Server is publicly available , so i have hosted some WCF services in that server , i can access the URL from outside my network, but i can use it. the url that i access it with is

http://196.XX.XXX.XXX:8095/datalayer/

but now looking at the link to generate the metadata is different, it does not use an IP

svcutil.exe http://Mywebserver.mynetwoorkdomain....layer.svc?wsdl

so this makes it not accessible via the wcftestclient or even if i try to make add a reference in my applications in VS

What settings in the IIS do i need to change ?

Thanks