AWS contact?
Andras Toth
diosbejgli at gmail.com
Sat Feb 20 22:15:57 UTC 2021
Could have been but that's why I tested with a lower MTU sending back ICMP packet too big to prove that the packet sizes from the server decrease as a result.
Andras
> On 21 Feb 2021, at 08:27, William Herrin <bill at herrin.us> wrote:
>
> On Fri, Feb 19, 2021 at 4:18 PM Andras Toth <diosbejgli at gmail.com> wrote:
>> Given the fact that the TCP 3-way handshake is established, sounds like some Path MTU blackholing happening. Due to it happening during TLS handshake it's likely from the server towards you.
>
>
> Could also be another case of botched anycast TCP where packet #2
> arrived at a different server than packet #1.
>
> -Bill
>
>
>
> --
> William Herrin
> bill at herrin.us
> https://bill.herrin.us/
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