One of the most common reasons we see this is from ‘redist connected’ without any sanity check or prefix filter.
On Mar 30, 2020, at 5:49 PM, Jeremy Lumby <jlumby@MNVOIP.COM> wrote:
Abhi,
It is not as much a question about filtering prefixes, it is more a question of why your network would originate 206.108.255.0/24 <https://radar.qrator.net/as53740/graph#206.108.255.0/24>
Jeremy Lumby Minnesota VoIP 9217 17th Ave S #216 Bloomington, MN 55425 M: 612-355-7740 D: 612-392-6814 F: 952-873-7425 jlumby@mnvoip.com <mailto:jlumby@mnvoip.com>
From: MICE Discuss [mailto:MICE-DISCUSS@LISTS.IPHOUSE.NET <mailto:MICE-DISCUSS@LISTS.IPHOUSE.NET>] On Behalf Of Abhi Devireddy Sent: Monday, March 30, 2020 5:29 PM To: MICE-DISCUSS@LISTS.IPHOUSE.NET <mailto:MICE-DISCUSS@LISTS.IPHOUSE.NET> Subject: Re: [MICE-DISCUSS] BGP alerts about AS 53740 (OPTBIT)
Frank, That's really interesting. I'm sending QRator an unfiltered BGP feed and that might be triggering the error(?). I'll try to filter my feed to QRator to deny the MICE prefix and see if that fixes it.
Open to suggestions as well. Abhi From: MICE Discuss <MICE-DISCUSS@LISTS.IPHOUSE.NET <mailto:MICE-DISCUSS@LISTS.IPHOUSE.NET>> on behalf of Frank Bulk <fbulk@MYPREMIERONLINE.COM <mailto:fbulk@MYPREMIERONLINE.COM>> Sent: Monday, March 30, 2020 5:11 PM To: MICE-DISCUSS@LISTS.IPHOUSE.NET <mailto:MICE-DISCUSS@LISTS.IPHOUSE.NET> <MICE-DISCUSS@LISTS.IPHOUSE.NET <mailto:MICE-DISCUSS@LISTS.IPHOUSE.NET>> Subject: [MICE-DISCUSS] BGP alerts about AS 53740 (OPTBIT)
Curious if anyone can make sense of this alert from QRator. Are they suggesting OPTBIT is advertising MICE’s /24?
I’ve seen this come and go since Sunday night at 10:09 pm Central.
Frank
From: Radar by Qrator <no-reply@qrator.net <mailto:no-reply@qrator.net>> Sent: Monday, March 30, 2020 2:49 AM
Subject: [BGP ALERT] [HIGH] <AS18883> Created Hijacks
Time: 30.03.2020 07:42:00 UTC Created Hijacks New IPv4 incidents: Target Prefix Target ASN Affected prefix Affected ASN Severity Propagation 206.108.255.0/24 <https://radar.qrator.net/as18883/graph#206.108.255.0/24> 18883 (FIBERNET-NETWORK-OPERATIONS-CENTER) <https://radar.qrator.net/as18883> 206.108.255.0/24 <https://radar.qrator.net/as53740/graph#206.108.255.0/24> 53740 (OPTBIT) <https://radar.qrator.net/as53740> High 1 AS Names involved in the incident: AS18883 (FIBERNET-NETWORK-OPERATIONS-CENTER), AS53740 (OPTBIT) Active IPv4 incident count: 16 Radar by Qrator <https://radar.qrator.net/>
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