After the discovery of NAT Slipstreaming 2.0 attack this week, Google says it will block Chrome traffic on ports 69, 137, 161, 1719, 1720, 1723, 6566, and 10080.
Article Link: https://www.zdnet.com/article/google-deploys-new-chrome-mitigations-against-new-nat-slipstreaming-attack/#ftag=RSSbaffb68