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September 2020

Post-Mortem on Tuesdays BGP Hijack

By CloudSingularity, Datacentre One Comment

What happened?

Today at 10:46 AM PDT our monitoring system detected a hijack of two of our six IPv4 prefixes. This would have affected some traffic to/from networks who are not yet RPKI filtering invalids. (hint: for those who have no idea what we are talking about, some great resources are listed at the bottom of this page)

Shortly after the automated alert, we started our investigation and determined that Telstra Wholesale Australia (AS1221) had hijacked the two prefixes. Only customers who have IPs assigned from those two prefixes (as in above screenshot) would have been affected. Read More