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List:       ipng
Subject:    RE: src addr sel
From:       Mauro Tortonesi <mauro () ferrara ! linux ! it>
Date:       2001-01-26 19:46:01
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On Thu, 25 Jan 2001, Richard Draves wrote:

first of all, thank for your reply. although i am surely not an expert
kernel-level programmer, i am very interested in this argument.

> [Resending from my Hotmail account. I fear the original did not make it out 
> to the list.]

maybe because of problems with the net at your workplace, lately? ;-)
don't be offended, it happens to everyone :-(

> >i wonder if there is a working implementation of dest/src address
> >selection that is fully conformant to this spec. i'd really like to know 
> >how the implementation issues have been solved.
> 
> Yes, I have implemented it. It's pretty easy to implement. Basically when 
> getaddrinfo gets more than one address back from DNS, it uses an ioctl to 
> call down to the IPv6 stack to sort the addresses. Then all the real work is 
> in the IPv6 stack, where there is direct access to information like the 
> interfaces, addresses, routing table, etc.

is there an opensource or free-software implementation? i'd REALLY like to
take a look a it. i guess you have implemented this feature only in w2k,
haven't you?

> Another solution is to keep an invalidation counter 

this is a much more performant and interesting strategy than resorting
a list every second. maybe you can add these considerations in the next
version of your paper. 

-- 
Aequam memento rebus in arduis servare mentem...

Mauro Tortonesi			mauro@ferrara.linux.it
Ferrara Linux User Group	http://www.ferrara.linux.it
Project6 - IPv6 for Linux	http://project6.ferrara.linux.it

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