[ih] Memories of Flag Day?

Brian E Carpenter brian.e.carpenter at gmail.com
Fri Aug 11 19:16:41 PDT 2023


On 12-Aug-23 13:58, John Levine wrote:
> It appears that Brian E Carpenter via Internet-history <brian.e.carpenter at gmail.com> said:
>> On 12-Aug-23 09:02, Michael Thomas via Internet-history wrote:
>>>
>>> On 8/11/23 1:49 PM, Brian E Carpenter via Internet-history wrote:
>>>> On 12-Aug-23 03:11, Jaap Akkerhuis via Internet-history wrote:
>>>>>     > > I just mistyped - I meant to type "ping6", not "ping". So try
>>>>> "ping6
>>>>>     > > 2001:4860:4860::8888"
>>>>>
>>>>> On my system (FreeBSD), ping just works, it recognizes the ipv6 syntax.
>>>>
>>>> Also on reasonably modern Linux, I think, and for many years on Windows.
>>>>
>>> Does it use happy eyeballs?
>>
>> Surely ping doesn't use HE?
> 
> More or less. If you give it an IP address, it does the appropriate
> kind of ping. If you give it a domain name, it looks for AAAA then A
> records. 

But I'm pretty sure that on Windows and recent Linux, it gives IPv6
precedence, whereas HE tries both and picks the better one.

    Brian

> You can use -4 or -6 if you want to force it one way or the
> other.
> 
> R's,
> John


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