public ServerBuilder clientAddressFilter(Predicate<? super InetAddress> clientAddressFilter) {
        this.clientAddressFilter = requireNonNull(clientAddressFilter, "clientAddressFilter");
        return this;
    }
Sets a filter which evaluates whether an {@link InetAddress} can be used as a client address.
core/src/main/java/com/linecorp/armeria/server/ServerBuilder.java