How to add Custom-Headers and send it to Backend Service based-on a Client IP condition?

[Akshay466]

Hi All,

I'm new to Apigee and trying  to achieve the following use-case:

When the request comes to Apigee, if the request from the client belongs to a particular CIRD-Block / IP, then I need to add a Custom-Header and send it to the back-end server. If the condition is not met, then I just need to pass it to the back-end server without any change in the Header.

Is there any option to achieve the following use-case?  Thanks in Advance!!