Forum Discussion
MSK_222682
Nimbostratus
NimbostratusX-Forwarded-For header
Hi All,
My application team requirement is to able to see the actual client ip address whoever accessing the application instead of BIG IP address as SNAT (Auto map) is enabled.
I have read some ...
Yann_Desmarest
Cirrus
CirrusHello,
You can use the following :
when HTTP_REQUEST {
if {[HTTP::header exists X-Forwarded-For]}{
HTTP::header replace X-Forwarded-For "[HTTP::header X-Forwarded-For], [IP::client_addr]"
} else {
HTTP::header insert X-Forwarded-For [IP::client_addr]
}
}
Yann_DesmarestCirrus
CirrusHello,
The irule provided add the client ip to an existing X- header otherwise, it will add a new one with the clientip.
Insert allow you to add a new header.
Replace add a new header if there is no existing header with the same name, otherwise it changes the value of an existing x- header