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Re: [Masque] Call for MASQUE use cases

David Schinazi <dschinazi.ietf@gmail.com> Fri, 06 March 2020 18:56 UTC

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From: David Schinazi <dschinazi.ietf@gmail.com>
Date: Fri, 06 Mar 2020 10:55:51 -0800
Message-ID: <CAPDSy+6zdJah6dAZgdN-9k84b-2+O3SJY6UjObVxPt22dn5fBQ@mail.gmail.com>
To: Dragana Damjanovic <dragana.damjano@gmail.com>
Cc: Lucas Pardue <lucaspardue.24.7@gmail.com>, Ben Schwartz <bemasc=40google.com@dmarc.ietf.org>, Eric Rescorla <ekr@rtfm.com>, Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>, Christopher Wood <caw@heapingbits.net>, MASQUE <masque@ietf.org>
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Subject: Re: [Masque] Call for MASQUE use cases
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Hi Dragana,

What's your use-case where the client has a set of IP address literals but
no hostname?

David

On Thu, Mar 5, 2020 at 10:00 PM Dragana Damjanovic <
dragana.damjano@gmail.com> wrote:

>
>
> On Thu, Mar 5, 2020 at 3:19 PM Lucas Pardue <lucaspardue.24.7@gmail.com>
> wrote:
>
>>
>>
>> On Thu, Mar 5, 2020 at 2:05 PM Dragana Damjanovic <
>> dragana.damjano@gmail.com> wrote:
>>
>>>
>>> I was looking into implementing sending an IP address in CONNECT request
>>> to a proxy instead of host name. It is not easy to figure out if connect
>>> should be retried with another IP address.. Having better error codes would
>>> be helpful.
>>>
>>> dragana
>>>
>>
>> That's an interesting case. IIUC correctly, your client might ask the
>> proxy to use IPv6, which could fail, and your client might then try IPv4?
>>
>>
> yes. That would be most common case. We may retry a different ip address,
> but I am actually not sure how often is something like this happening
> because it may have a long delay depending on the netowrk error(try PIv4
> address 1 and if it fails tray IPv4 address 2)
>
>
>> A failure such as this today would be communicated by returning an HTTP
>> error status. Is there a gap that mean HTTP cannot be used to communicate
>> the specific error condition you describe?
>>
>
> no, I think you cannot be 100% sure, the error may mean multiple things.
>
>
> Thinking about it more, maybe it would be better to send a list of IP
> addresses and let proxy chose one or do a happy-eyeballing for example.
> That would mean a CONNECT with list of IP addresses instead of one or a
> host name.
>
> dragana
>
>
>
>
>> Cheers
>> Lucas
>>
>>
>>>
>> --
> Masque mailing list
> Masque@ietf.org
> https://www.ietf.org/mailman/listinfo/masque
>

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