@Salah Ghalloussi, Many thanks for publishing in Q&A. With the Remote deal with environment, it only accepts some distinct format value. If you want to block the inbound or outbound from 1 area, you can enter the IP handle or number of the area you should block. In this case, https://devinzpbku.mdkblog.com/42477832/the-5-second-trick-for-block-breaker-strategy-tips