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Re: [stun] Re: [midcom] Port preservation

Cullen Jennings <fluffy@cisco.com> Tue, 27 April 2004 06:09 UTC

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Date: Mon, 26 Apr 2004 19:54:43 -1000
Subject: Re: [stun] Re: [midcom] Port preservation
From: Cullen Jennings <fluffy@cisco.com>
To: Pyda Srisuresh <srisuresh@yahoo.com>, Yutaka Takeda <takeday@pcrla.com>, Midcom <midcom@ietf.org>, stun@www.vovida.org
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Thanks for the concrete example of IKE.

On 4/23/04 1:03 PM, "Pyda Srisuresh" <srisuresh@yahoo.com> wrote:

> Port preservation is desirable in some limited cases where applications and
> protocols require a certain number to be used for source and/or destination.
> ex: IKE-v1 assumes UDP port 500 on both src and dest.
> 
> cheers,
> suresh
> 
> --- Yutaka Takeda <takeday@pcrla.com> wrote:
>> 
>> Does anyone know what the real motivation for NAT designers to
>> implement the port preservation[1] is? Is there an actual service
>> or application that depends on this behavior? I just realized that
>> I know such NATs exist but why...
>> 
>> [1]
>> http://www.ietf.org/internet-drafts/draft-jennings-midcom-stun-results-00.txt
>> 
>> Yutaka
>> 
>> _______________________________________________
>> midcom mailing list
>> midcom@ietf.org
>> https://www1.ietf.org/mailman/listinfo/midcom
> 
> 
> =====
> 
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> stun@www.vovida.org
> To unsubscribe, please go to http://www.vovida.org/mailman/listinfo/stun
> 


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