AW: [Pana] NAT issue

["Tschofenig, Hannes" <hannes.tschofenig at siemens.com>]

Good catch, Yoshi. 

I assume that you would like to fix it by sending PAA initiated messages to the port and address of the last received message. 

Ciao
Hannes
 
> -----Ursprüngliche Nachricht-----
> Von: Yoshihiro Ohba [mailto:yohba at tari.toshiba.com] 
> Gesendet: Freitag, 9. März 2007 04:40
> An: pana at ietf.org
> Betreff: [Pana] NAT issue
> 
> In the current draft:
> 
> "
>    When the PANA message is sent in response to a request, the UDP
>    source and destination ports of the response message MUST be copied
>    from the destination and source ports of the request message,
>    respectively.
> 
>    For other PANA messages, the source port MUST be set to a value
>    chosen by the sender and the destination port MUST be set to the
>    assigned PANA port (To Be Assigned by IANA).
> "
> 
> According to this, a PAA-originated request will be always sent to
> PANA port.  If there is a NAT between PaC and PAA, this does not seem
> to work, because the NAT is typically expecting incoming messages to
> be received on the port that was used as the source port of outgoing
> messages.
> 
> Yoshihiro Ohba
> 
> 
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