Toot

Written by The Shadowserver Foundation on 2025-01-29 at 20:47

Added 4in6 & 6in4 scans to our Open IP-Tunnel reporting (hosts that accepted unauthenticated packets from an arbitrary source, which can be abused for DoS/other attacks) https://shadowserver.org/what-we-do/network-reporting/open-ip-tunnel-report/

~150K 4in6 open tunnels found (most in Germany)

~1.07M 6in4 open tunnels found

4in6 open tunnel map (2025-01-28:

https://dashboard.shadowserver.org/statistics/combined/map/?map_type=std&day=2025-01-28&source=ip_tunnel&source=ip_tunnel6&tag=4in6&geo=all&data_set=count&scale=log

6in4 open tunnel map (2025-01-28):

https://dashboard.shadowserver.org/statistics/combined/map/?map_type=std&day=2025-01-28&source=ip_tunnel&source=ip_tunnel6&tag=6in4&geo=all&data_set=count&scale=log

4in6 open tunnel tracker:

https://dashboard.shadowserver.org/statistics/combined/time-series/?date_range=30&source=ip_tunnel&source=ip_tunnel6&tag=4in6&dataset=unique_ips&style=stacked

6in4 open tunnel tracker:

https://dashboard.shadowserver.org/statistics/combined/time-series/?date_range=30&source=ip_tunnel&source=ip_tunnel6&tag=6in4&dataset=unique_ips&style=stacked

Background and more details:

https://github.com/vanhoefm/tunneltester

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