Hi Robert, NANOG,
On Mon, Apr 26, 2021 at 09:29:27AM -0400, Robert Blayzor via NANOG wrote:
> According to Cloudflares isbgpsafeyet.com, Cogent has been considered "safe"
> and is filtering invalids.
>
> But I have found that to be untrue (mostly). It appears that some days they
> filter IPv4,
According to Cloudflares isbgpsafeyet.com, Cogent has been considered
"safe" and is filtering invalids.
But I have found that to be untrue (mostly). It appears that some days
they filter IPv4, sometimes not, and IPv6 invalids are always coming
through. I know it's Cogent, but curious as to
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