Re: New draft on IPv6 extension headers

2006-10-19 Thread Rémi Denis-Courmont
Hello, On Wed, Oct 18, 2006 at 04:07:15PM -0400, Suresh Krishnan wrote : I have submitted a draft requesting a standard format for IPv6 extension headers. I would appreciate any comments on it. I think I don't understand why one would need new extension headers, instead of adding

Re: New draft on IPv6 extension headers

2006-10-19 Thread Brian E Carpenter
Rémi Denis-Courmont wrote: Hello, On Wed, Oct 18, 2006 at 04:07:15PM -0400, Suresh Krishnan wrote : I have submitted a draft requesting a standard format for IPv6 extension headers. I would appreciate any comments on it. I think I don't understand why one would need new extension

Re: New draft on IPv6 extension headers

2006-10-19 Thread Stig Venaas
Rémi Denis-Courmont wrote: Hello, On Wed, Oct 18, 2006 at 04:07:15PM -0400, Suresh Krishnan wrote : I have submitted a draft requesting a standard format for IPv6 extension headers. I would appreciate any comments on it. I think I don't understand why one would need new extension

Neil Thomson/GIS/CSC is out of the office.

2006-10-19 Thread Neil Thomson
I will be out of the office starting 13/10/2006 and will not return until 23/10/2006. For urgent enquiries please contact Jennifer Emms CSC (0141 957 2299 ). IETF IPv6 working group mailing list ipv6@ietf.org

Re: New draft on IPv6 extension headers

2006-10-19 Thread Su Thunder
I don't think your comment is a problem.Whether a block of memory is payload or an extension header is determined by the Next Header value of the immediately preceding header, not whether the extension header is known or unknown.A node should pass an unknown extension header to the next header

Re: New draft on IPv6 extension headers

2006-10-19 Thread Fred Baker
On Oct 19, 2006, at 3:53 AM, Su Thunder wrote: I don't think your comment is a problem. Whether a block of memory is payload or an extension header is determined by the Next Header value of the immediately preceding header, not whether the extension header is known or unknown. A node should

Re: New draft on IPv6 extension headers

2006-10-19 Thread Stig Venaas
Fred Baker wrote: On Oct 19, 2006, at 3:53 AM, Su Thunder wrote: I don't think your comment is a problem. Whether a block of memory is payload or an extension header is determined by the Next Header value of the immediately preceding header, not whether the extension header is known or

Re: New draft on IPv6 extension headers

2006-10-19 Thread Markku Savela
From draft... However, some intermediate nodes such as firewalls, may need to look at the transport layer header fields in order to make a decision to allow or deny the packet. If new extension headers are defined and the intermediate node is not aware of them, the intermediate

Re: New draft on IPv6 extension headers

2006-10-19 Thread Bob Hinden
Suresh, [No hats on] Hi Folks, I have submitted a draft requesting a standard format for IPv6 extension headers. I would appreciate any comments on it. I really like reading clear and concise drafts!!! Thanks! While I agree that the problem that your draft is addressing is real, I

struct sockaddr_storage

2006-10-19 Thread Mike Taylor
Hello All, Does anybody understand whyRFCs propose creating struct sockaddr_storage with code like /* * Desired design of maximum size and alignment*/#define _SS_MAXSIZE 128 /* Implementation specific max size */ #define _SS_ALIGNSIZE (sizeof (int64_t)) /* Implementation specific desired

Re: New draft on IPv6 extension headers

2006-10-19 Thread Su Thunder
If we can predict that many new extension headers will be defined in the future,a new draft for the router to recognize the newly defined extension header will be neccessary.For example,we can define a set of parameters including the Next Header value in the immediately preceding header,a list