who gets a /32 [Re: IPV6 renumbering painless?]

Mon Nov 29 15:14:56 UTC 2004

Paul Vixie wrote:

>>And please don't add any more layering violations.  It makes implementors
>>life painful and kills any architectual cleaniess in operating systems.
>>    
>>
>
>i have long wished for and sometimes needed a way to renumber a host w/o
>killing or restarting its active tcp flows.  this isn't a layering
>violation.  tcp should be able to know about endpoint-renumber events.
>
>  
>
Unfortunately this sounds like a good target for people to mess up 
implementations and introduce huge security issues into TCP stacks. 
(along the theme of the one which started the recent MD5 discussion)

But obviously, implemeted properly that would be very useful. The 
problem then becomes, how an ISP can signal a renumber.

Pete