[Dibbler] Question concerning preferred and valid lifetime

Tomasz Mrugalski thomson at klub.com.pl
Mon Mar 21 00:48:55 CET 2005

On Fri, 18 Mar 2005 somebody known as Tomasz Mrugalski wrote:

> On Fri, 18 Mar 2005 somebody known as Harald Schwier wrote:
> Yeah, it's a bug, but you have sent this bug report to the wrong project. 
> Contact Linus Torvalds :)
> Seriously, there is currently no way to add dynamic address with finite 
> lifetimes in linux kernels. Address aging mechanism is implemented in linux 
> kernel, but there is no API to take advantage of it. Interesting note: when 
> host recevied Router Advertisement, address with decreasing preferred/valid 
> lifetime is added to the interface.
> I have checked it serveral months ago, and I'm trying to look at changelog 
> each time new kernel is released, but there seems nothing new in this matter. 
> I'm not very experienced with low level kernel programming, so I can't fix 
> this myself... yet. Of course, there's possibility that I'm wrong and this 
> thing can be done. If that is so, I'd like to take a look and some code which 
> adds a dynamic IPv6 address.
I have contacted USAGI people (a project which aims at implementing better 
IPv6-related stuff in Linux kernel) and they have suggested that adding 
dynamic addresses with finite can be done. So I shall investigate that 
matter. I'll keep you posted if there will be any developments.

Tomasz Mrugalski,              | "I think there is a world market for     |
thomson(at)klub(dot)com(dot)pl |  about five computers."                  |
                                |     Thomas J. Watson (Chairman, IBM) 1943|

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