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Subject: CPU Hog Date: Mon Aug 08 2022 02:11 pm
From: deon To: Stephen Walsh

  Re: CPU Hog
  By: Stephen Walsh to deon on Mon Aug 08 2022 11:11 am

 > 08 Aug 22 09:54, you wrote to Tracker1:
 >
 >  de> What's also strange, I've learnt that his side is also PPPoE, and I
 >  de> was only having this issue with his system - my other IPv6 connections w
ere not affected.
 >
 > Correction: This hub system sits in a data centre as a VM. So no PPoE.

Ahh, OK - I understood that incorrectly. Not sure what the issue is between your
 sytem and mine then.

I've done lots of reading regarding PPPoE and IPv6 and challenges are known. The
y are exacerbated by firewall rules that drop ICMP messages - since IPv6 routers
 are not allowed to defrag packets (if I have read that correctly), so send back
 an ICMP packet too big, which some intermediatories drop.

A common thread that I've also read, especially if your "data center" has multip
le inbound paths (ECMP) is the ICMP packet comes back via a different path and i
snt matched to the source, so is dropped.

Anyway, IPv4 works, so we can stick with that I guess.


...δεσ∩

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