Use HTTP_Referer to select pool

Hi, URI::host does not include that protocol, so you could try this way:

 when HTTP_REQUEST {
    if { [HTTP::header value Referer] starts_with "http://remotepay-pt.test.com" } {
        pool REMOTEPAY_7080
    } else {
        pool REMOTEPAY_80
    }
}

You may not need two iRules by checking VS port:

when HTTP_REQUEST {
    if { [URI::host [HTTP::header value Referer]] eq "remotepay-pt.test.com" } {
        if { [TCP::local_port] eq 80 } {
            pool REMOTEPAY_7080
        } else {
            pool REMOTEPAY_7443
        }
    } else {
        if { [TCP::local_port] eq 80 } {
            pool REMOTEPAY_80
        } else {
            pool REMOTEPAY_443
        }
    }
}

Also, you might want to validate that the Referer header exists, e.g.

if { [HTTP::header exists Referer] and 
        [HTTP::header value Referer] starts_with "http://remotepay-pt.test.com" }    

To get the protocol from Referer:

set proto [URI::protocol [HTTP::header value Referer]]

https://devcentral.f5.com/wiki/iRules.URI.ashx

Respectfully,