Forum Discussion
muzammil_88686
Nimbostratus
NimbostratusX-Remote-Addr is showing as 0.0.0.0
Dear Dev Team,
Users are trying to access the URL "www.test.com/connect"
We are seeing X-Remote-Addr as 0.0.0.0 in HTTP header for some requests and we are seeing the "actual client ip addr...
The pvac process (pvac is the WebAccelerator data plane daemon in 9.x and 10.x) will insert the X-Remote-Addr for traffic it processes. If pvac processing is bypassed- for example, when the system is under a lot of load and the request queue is full- then the chunk pvac code that writes the client IP address into the X-Remote-Addr header can be bypassed as well. Hence, you see 0.0.0.0 rather than the real client IP address.
You can use an iRule to change the X-Remote-Addr header's value to what it should be. Something like this:
when HTTP_REQUEST_SEND {
clientside {
if { [HTTP::header exists "X-Remote-Addr"] and [HTTP::header "X-Remote-Addr"] equals "0.0.0.0" } {
HTTP::header replace "X-Remote-Addr" [IP::client_addr]
}
}
}
Addressing the cause of the WebAccelerator bypass or enabling/using the X-Forwarded-For header are other options to do instead of/in addition to the iRule workaround above.
