Re: [Hipsec] TCP port negotiation for HIP over HIP

["Henderson, Thomas R" <[e-mail]>]

> -----Original Message-----
> From: [e-mail]
> [mailto:[e-mail]] On Behalf Of Ari Keranen
> Sent: Thursday, October 21, 2010 9:01 AM
> To: HIP WG
> Subject: [Hipsec] TCP port negotiation for HIP over HIP
>
> Hi all,
>
> In an off-line discussion we figured out that using a fixed TCP port
> number in the ESP TCP mode in the HIP-over-HIP draft would
> most likely
> require registering such a port with IANA (currently the draft uses
> 10500 noted as "reserved" by IANA due to same UDP port number being
> assigned for HIP NAT traversal), but since this port is never used
> outside of a HIP-initiated SA, it could be hard (and probably
> not make
> much sense) to register a port for that.
>
> Therefore, I would propose making the port number negotiable and
> piggyback it in the transport mode parameter negotiation. In practice
> the change would look something like this:
> http://users.piuha.net/akeranen/drafts/draft-ietf-hip-over-hip
> .rHEAD.xml-diff.html
>
> Opinions?
>

+1

- Tom