Hi all, We posted a updated version of "UDP Encapsulation of 6rd". This version changed the design significantly. This is the list of changes:
1. Removed the stateful requirement in the 6rd BR. 2. Embedded the UDP port info the v6 address. 3. No control protocol is required. 4. The encapsulation is stateless and very much align with the class 6rd. 5. This requires no change in the home gateway, so the starting cost of 6rd will be lower. 6. Starting cost is lower so it should speedup the 6rd deployment. 7. Minimal change in the 6rd BR so same 6rd BR can be used for both classic and udp encap. 8. Added a new co-author. However, there are some drawbacks required further discussion in the working group. Two most important design decisions are: 1. How to discover 6rd parameters? ISP relies on radius can pass the parameters over the existing infrastructure. However, ISP relies on dhcp may require some OOB discovery procedure. 2. Since the 6rd udp host is behind NAT, so it won't know the NAT-ed udp port after NAT-ing. We solve this problem by asking the 6rd BR to fill in the port information. However, this design virtually creates a NAT66 scenario. Our goal for this technology is promoting IPv6 even in the situation where the ISP doesn't manage the home gateway. This is a low cost add-on to the class 6rd and help the ISP to transition to IPv6 in a faster pace. Questions and comments are welcome. Yiu ------ Forwarded Message From: IETF I-D Submission Tool <[email protected]> Date: Thu, 27 May 2010 19:44:15 -0700 To: Yiu Leung Lee <[email protected]> Cc: <[email protected]> Subject: New Version Notification for draft-lee-softwire-6rd-udp-01 A new version of I-D, draft-lee-softwire-6rd-udp-01.txt has been successfully submitted by Yiu Lee and posted to the IETF repository. Filename: draft-lee-softwire-6rd-udp Revision: 01 Title: UDP Encapsulation of 6rd Creation_date: 2010-05-28 WG ID: Independent Submission Number_of_pages: 15 Abstract: This memo specifies the UDP encapsulation to IPv6 Rapid Deployment (6rd) protocol which enables hosts behind unmodified Home Gateway device to access 6rd service. The IETF Secretariat. ------ End of Forwarded Message
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