Your observation is correct. QS_ClientIpFromHeader cannot be used for QS_VipIPHeaderName. The only direktives which work with QS_ClientIpFromHeader #USERAGENT_IP are QS_ClientEventRequestLimit, QS_ClientEventLimitCount, and QS_ClientSerialize,
close tag
h2 bytes/sec
updated h2 disclaimer
h2
h2ssl
h2
mod_reqtimeout