[AusNOG] Anyone put their hand up?

Dmitry Konchanin dmitry.konchanin at dtsanz.com
Wed Jun 9 15:19:46 EST 2021


Seems like v6 this time, also big counters on ddos-protection protocols 
ndpv6/neighb-sol and ndpv6/aggregate. Tho it does not save routing 
engine. I guess it's time to have a good look on ipv6 RE input policer, 
they usually got lack of attention..

Kind regards,

Dmitry Konchanin
Senior Network Engineer
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On 9/06/2021 4:54 pm, Binh Lam wrote:
> All,
>
> For junos.. check the output of
>
> "show ddos-protection protocols statistics terse"
>
> will give you some hints what happened..
> It appears ttl, ndpv6 hit via ix?
>
> On Wed, 9 Jun 2021, 2:48 pm Luke Iggleden, <luke at iggleden.com 
> <mailto:luke at iggleden.com>> wrote:
>
>     Hi All,
>
>     I too would like to see what the traffic was that hit our Junipers
>     with this issue.
>
>     We changed the default arp policer last time a similar event
>     happened on Megaport, but still this played havoc on our routing
>     engines. Is there some other traffic we have to filter to protect
>     our networks from broadcast storms on this peering fabric?
>
>
>
>     On 9/6/21 2:06 pm, Stavros Patiniotis wrote:
>>
>>     Hi,
>>
>>     Does anyone have a sample pcap of the erroneous traffic seen from
>>     their port that they would be able to share?
>>
>>     *From:*AusNOG <ausnog-bounces at lists.ausnog.net>
>>     <mailto:ausnog-bounces at lists.ausnog.net> *On Behalf Of *Dave Browning
>>     *Sent:* Wednesday, 9 June 2021 1:27 PM
>>     *To:* ausnog at lists.ausnog.net <mailto:ausnog at lists.ausnog.net>
>>     *Subject:* Re: [AusNOG] Anyone put their hand up?
>>
>>     The storm came in from fe80::82e0:1dff:fe27:b440
>>     Which is 80:e0:1d:27:b4:40
>>     Which is 103.26.68.204 in v4 land
>>     Which is AS38858
>>
>>     :)
>>
>>     On 9/06/2021 1:38 pm, Edward Um wrote:
>>
>>         Can anyone confirm an outage at 1pm ish today?
>>
>>         Thanks in advance!
>>
>>         -- 
>>
>>         Edward Um
>>         Mobile: +61 449 051 894
>>
>>         Sent on the run!
>>
>>
>>
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>>
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