Re: [tsvwg] I-D Action: draft-ietf-tsvwg-natsupp-16.txt

[[e-mail]]

Hi Michael, 

That's better. 

I would: s/can not be sent/can not be forwarded.

I prefer if the "corresponding" message is called out in the text (that is, "Fragmentation needed and DF set" or PTB).

Thank you.

Cheers,
Med

> -----Message d'origine-----
> De : Michael Tuexen [mailto:[e-mail]]
> Envoyé : lundi 27 juillet 2020 22:13
> À : BOUCADAIR Mohamed TGI/OLN <[e-mail]>
> Cc : [e-mail]
> Objet : Re: [tsvwg] I-D Action: draft-ietf-tsvwg-natsupp-16.txt
> 
> > On 27. Jul 2020, at 14:04, [e-mail] wrote:
> >
> > Hi Michael,
> >
> > Please see inline.
> >
> > Cheers,
> > Med
> >
> >> -----Message d'origine-----
> >> De : Michael Tuexen [mailto:[e-mail]]
> >> Envoyé : dimanche 26 juillet 2020 12:03 À : BOUCADAIR Mohamed
> TGI/OLN
> >> <[e-mail]> Cc : [e-mail] Objet : Re:
> >> [tsvwg] I-D Action: draft-ietf-tsvwg-natsupp-16.txt
> >>
> >>> In any case, I'm afraid you will need to add details such as:
> amount
> >> of time/resources a NAT can wait for out of order fragments. You
> may
> >> reuse some of the text from RFC 6146, including the default frag
> >> timeout.
> >>>
> >>> * Consider this change to align with REQ-13 of RFC4787:
> >>>
> >>> OLD:
> >>>  When an SCTP packet has to be fragmented by the NAT function and
> >> the
> >>>  IP header forbids fragmentation a corresponding ICMP packet
> SHOULD
> >> be
> >>>  sent.
> >>>
> >>> NEW:
> >>>  When an SCTP packet has to be fragmented by the NAT function and
> >> the
> >>>  IP header forbids fragmentation, the NAT MUST send back an ICMP
> >> message
> >>>  "Fragmentation needed and DF set" to the internal host.
> >> Changed to
> >> <t>When an SCTP packet has to be fragmented by the NAT function and
> >> the IP header forbids fragmentation, the NAT MUST send back a
> >> corresponding ICMP message to the internal host.
> >>
> >> since it covers IPv4 and IPv6.
> >
> > [Med] The wording is IPv4-specifc: "When an SCTP packet ** has to be
> fragmented **".
> Hmm. My view is that an IPv6 header always forbids fragmentation... So
> maybe a bette workding helps:
> 
> <t>When an SCTP packet can not be sent by the NAT function due to MTU
> issues and the IP header forbids fragmentation, the NAT MUST send back
> a corresponding ICMP message to the internal host.
> 
> Is that acceptable?
> 
> Best regards
> Michael
> >
> > You may consider my initial wording for IPv4 + add a new sentence to
> cover the IPv6 case.
> >
> >
> >


_________________________________________________________________________________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler
a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci.

This message and its attachments may contain confidential or privileged information that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and delete this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified.
Thank you.