[afnog] strange AS_PATH

[Mark Tinka]

On 3/Aug/17 06:41, Frank Habicht wrote:

> Hi,
>
> quick show of hands. who thinks this is "right" ?
>
> 154.73.252.0/24    *[BGP/170] 1w1d 19:30:14, localpref 100, from
> 196.223.21.66
>                       AS path: 4558 6939 37105 37105 37105 3741 37100
> 37314 327840 I, validation-state: unverified

Yep, this looks like a leak from Neology (AS37105) to HE (AS6939).

I think IS (AS3741) are right to forward the route to Neology if that is
a provider-customer relationship. But while Neology should not be
leaking it to HE, I wonder why HE are accepting it in the first place.

Mark.
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