Mailing List Archive: AS701 anycasts any IP?

On Fri, Aug 26, 2022 at 5:49 AM Bjoern Franke via NANOG <nanog@nanog.org> wrote:
>
> Hi,
> while investigating an issue I was wondering a german IP was only 1-2
> hops away from some RIPE Atlas Probes connected via AS701.
>
> It seems at least probe #50235 and #54508 see any IP directly as next
> hop, as an example here with the IP of mailop.org:
>

the 2 probes are in boston, mass vs new york, new york.
The endpoint appears to be closer to the boston probe (54508).
From virginia/wdc the endpoint is ~100ms away and in ~germany.
(the last hop I see says anx84, which might be norway... 'not boston' though)

Is it possible that 701's seeing a local copy of the /24?

looking at their lookingglass for ping/bgp data from billerica, ma
(boston adjacent):
91.132.144.0/22 (2 entries, 1 announced)
*BGP Preference: 170/-96
Age: 2w2d 6:44:09 Metric: 10 Metric2: 500502
Announcement bits (4): 0-KRT 3-RT 10-BGP_RT_Background
11-Resolve tree 5
AS path: 1299 47147 197540 I (Originator)

PING 91.132.147.157 (91.132.147.157): 56 data bytes
64 bytes from 91.132.147.157: icmp_seq=0 ttl=55 time=102.899 ms

curious results though :)

> https://atlas.ripe.net/measurements/44133927/
>
> Regards
> Bjoern
>
>
>