HTTP Policy Logging

I have an HTTP Policy in place with a big of logging. However I'd like to provide more detail in the log such as Client IP Address. I have attempted to use [IP::CLIENT_ADDR] however that doesn't appear to work. Is there away I can accomplish this. Below is my policy:

ltm policy /QA/API_SERVICES {
    controls { forwarding }
    requires { http }
    rules {
        "DROP_STATUS PAGES" {
            actions {
                0 {
                    log
                    write
                    message "[IP::CLIENT_ADDR] ATTEMPT TO ACCESS STATUS PAGE"
                }
                1 {
                    forward
                    reset
                }
            }
            conditions {
                0 {
                    http-uri
                    path
                    values { /favorites/status }
                }
            }
            ordinal 2
        }
        ALLOWED_SERVICES {
            actions {
                0 {
                    log
                    write
                    message "Attempt to access non-permitted web service"
                }
                1 {
                    forward
                    reset
                }
            }
            conditions {
                0 {
                    http-uri
                    path
                    not
                    starts-with
                    values { /favorites/ }
                }
            }
            ordinal 3
        }
        HOST_HEADER {
            actions {
                0 {
                    log
                    write
                    message "Bad host header."
                }
                1 {
                    forward
                    reset
                }
            }
            conditions {
                0 {
                    http-host
                    not
                    values { blah.foo.bar }
                }
            }
            ordinal 1
        }
    }
    strategy /Common/first-match
}