irule to permit url by external host,

This is a short replacement for a URI ACL. This iRule has one iRule Data Group List which contains the URI in question with a value of the allowed IP Addresses. So each listed URI can have predefined number of IP Addresses allowed.

when HTTP_REQUEST { 
    if { [class match [string tolower [HTTP::path]] starts_with URL_paths] } { 
        set ip_access_datagroup [class match -value [string tolower [HTTP::path]] starts_with URL_paths]
        log local0. " filter $ip_access_datagroup"
    if { ![class match [IP::client_addr] equals $ip_access_datagroup]} { 
        log local0. " IP Adress deny" 
         HTTP::redirect "https://mysite.com" 
    }
    return
    }
}