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cuu508 | 4 days ago

There was no UDP connectivity from any of our servers for ~10 minutes, but TCP was working fine, I could SSH into them.

Even Hetzner's Robot interface was down.

Edit: https://status.hetzner.com/incident/5e901309-0873-42af-90c5-...

discuss

Bender|4 days ago

Very interesting. That would suggest to me that all traffic is passing through a stateful device vs. direct connectivity from a router. Routers can give simple bandwidth metrics. A stateful device or mirrored ports to a netflow analyzer would be required to create detailed connection logs though mirrored ports wont break state such as UDP virtual tables being full. Are they doing detailed logging of traffic?

alcazar|4 days ago

> We are currently experiencing a fault with UDP forwarding.

Exactly right.

From our logs, the main outage went from 21:01 to 21:10 UTC.

EDIT: Also https://status.hetzner.com/incident/affecfea-fd04-41a1-a680-... (Fault report on Cloud API and Hetzner Console)