//  Copyright © 2016 Magento. All rights reserved.
//  See COPYING.txt for license details.
    example.com:8080

    by ips:
    "127.0.0.1";
    "192.168.0.1";
    "127.0.0.2";

    if (req.http.user-agent ~ "(?pattern)?i") {
        hash_data("value_for_pattern");
    }