@UnstableApi
    public ClientFactoryBuilder ipAddressFilter(Predicate<? super InetSocketAddress> ipAddressFilter) {
        option(ClientFactoryOptions.IP_ADDRESS_FILTER, ipAddressFilter);
        return this;
    }
Sets the specified {@link Predicate} to validate the IP address of a remote server.
If the predicate returns {@code false}, the request to the server will be rejected.
By default, all IP addresses are accepted.
core/src/main/java/com/linecorp/armeria/client/ClientFactoryBuilder.java