Not-impossible, but it would be a whole lot simpler to just not respond to pings in the first place.
But also, as mentioned in https://news.ycombinator.com/item?id=46836803 , someone can still probe the second-last hop and get pretty close.
alt Hacker News
But also, as mentioned in https://news.ycombinator.com/item?id=46836803 , someone can still probe the second-last hop and get pretty close.