Intermittent IPv6 reachability in Frankfurt (FRA1)

Affected:

Network · FRA1

Duration

16 min

Reference

inc-20260802-1

Timeline

1. Resolved2 Aug 2026, 09:24 UTC

   Resolved. IPv6 reachability is fully restored; the filter change process now requires a second review.

2. Monitoring2 Aug 2026, 09:21 UTC

   All IPv6 prefixes are back in the routing table. We are verifying reachability from every rack.

3. Identified2 Aug 2026, 09:11 UTC

   A route filter update dropped a set of IPv6 prefixes learned at DE-CIX Frankfurt. The filter has been corrected and sessions are being re-announced.

4. Investigating2 Aug 2026, 09:08 UTC

   Some customers report IPv6 destinations being unreachable from Frankfurt (FRA1). IPv4 is unaffected.

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