Re: [Softwires] [v4tov6transition] 6a44 MTU issues

2010-10-12 Thread Rémi Després
Fred and Washam, I reacted too fast to previous remarks when I proposed to modify the accepted IPv6 MTU in 6a44 draft. If IPv6 packets longer than 1280 would be accepted by 6a44 servers, hosts could receive them in fragmented IPv4 datagrams. This would be contrary to the objective of simplicity

Re: [Softwires] DHCPv6 AFTR name option is needed

2010-10-12 Thread mohamed.boucadair
Dear Ted, The version which passed the Softwire LC is http://tools.ietf.org/html/draft-ietf-softwire-ds-lite-tunnel-option-04 which included both name and IP address options. After IESG review, 05 has been published but this version has significant changes. We are at least two service

[Softwires] 6a44 updated version (draft-despres-softwire-6a44-01)

2010-10-12 Thread Rémi Després
Hi all, Version -01 of the 6a44 draft has just been posted (www.ietf.org/id/draft-despres-softwire-6a44-01.txt) It includes correction of a substantial bug in Figure 3, an some clarifications. Thanks to all those who helped to improve it. Regards, RD

[Softwires] DHCP option for DS-lite

2010-10-12 Thread Alain Durand
Dear wg: draft-ietf-softwire-ds-lite-tunnel-optionmailto:draft-ietf-softwire-ds-lite-tunnel-opt...@tools.ietf.org has been reviewed by the IESG with input from the dhc wg. Their conclusion was that having both an IP option and an FQDN option to describe the tunnel-end-point was redundant. After

Re: [Softwires] DHCPv6 AFTR name option is needed

2010-10-12 Thread David W. Hankins
On Fri, Oct 08, 2010 at 05:36:48PM +0200, mohamed.boucad...@orange-ftgroup.com wrote: If there is a real issue with defining two DHCPv6 options (which I don't see), The problem of defining two options that convey the same configuration point is a problem we call aliasing. Section 6 (Avoid

Re: [Softwires] DHCPv6 AFTR name option is needed

2010-10-12 Thread David W. Hankins
On Tue, Oct 12, 2010 at 07:26:10AM -0700, Ted Lemon wrote: If you absolutely have to have the FQDN option, then get rid of the IP address option.That eliminates the interoperability problem. In any case, though, you need to issue a new draft. As a B4 implementor, I reject the onerus

Re: [Softwires] DHCPv6 AFTR name option is needed

2010-10-12 Thread Hemant Singh (shemant)
Folks, VoIP protocols in MGCP and SIP have been supporting IP address and FQDN for a long time. In VoIP deployment with FQDN use, the deployment always keeps a local name resolver. So why not look carefully at the use cases operators are presenting to advocate use of both FQDN and IP address

Re: [Softwires] DHCPv6 AFTR name option is needed

2010-10-12 Thread Ted Lemon
On Oct 12, 2010, at 4:58 PM, Hemant Singh (shemant) wrote: I appreciate the feedback on DHCPv6 design style to not use two entities to represent the same primitive but if DHCPv6 is such a stick in the mud, we could go with some other control mechanism. After all several protocols use FQDN

Re: [Softwires] DHCPv6 AFTR name option is needed

2010-10-12 Thread Hemant Singh (shemant)
A general question. If 6rd could become an RFC in RFC 5969 with no mention of FQDN for the BR, what is so special about DS-Lite and deployments that a FQDN is needed by DS-Lite for the AFTR? I would think the same FQDN issue would arise in 6rd as well... What did I miss? Thanks, Hemant

Re: [Softwires] DHCPv6 AFTR name option is needed

2010-10-12 Thread Washam Fan
Hi Hemant, As I know, since 6rd BRs are stateless, so you can configure an anycast address for load balancing stuff. Thanks, washam 2010/10/13 Hemant Singh (shemant) shem...@cisco.com: A general question.  If 6rd could become an RFC in RFC 5969 with no mention of FQDN for the BR, what is so

Re: [Softwires] DHCP option for DS-lite

2010-10-12 Thread mohamed.boucadair
Dear Alain, all, I strongly object to define only a single AFTR address option. As I mentioned in previous e-mails, the FQDN name option is needed for some scenarios such as load balancing. Having DHCP server acting as a load balancer is not an option for us. If the problem is only with the