Re: Azure Looking Glass

[Lincoln Dale <ltd () interlink com au>]

Presumably nothing stops you spinning up an instance in Azure and doing
pings/traceroutes yourself.
But perhaps you could be doing this from your own IPs towards <whomever>.

Have you configured your end in a manner that doesn't do MTU 1500 or that
relies on PMTUD to function?
If yes, well perhaps start there... you're not on a solid foundation.


On Sat, Jun 29, 2024 at 7:46 AM John Alcock <john () alcock org> wrote:

> I have gotten pretty close to figuring out my issue with the Azure Cloud.
> When I advertise my routes through one specific upstream provider, I have
> an issue. If I pull my routes from them, all works well.
>
> I believe this is some type of MTU issue.  Could be filtering, but I doubt
> it.
>
> Is there an Azure Looking glass that I can use to originate pings and
> traceroutes?  My googlefu is weak and I haven't found it yet.
>
> With that information, I think I can help my upstream provider know where
> the problem lies.
>
> John Acock
> AS395437