Use longest-matching prefix to the next hop

[FUJIKAWA Kenji <[e-mail]>]

Hi all, 

I am submitting an ID,
  http://www.ietf.org/proceedings/staging/draft-fujikawa-ipv6-src-addr-selection-02.txt
and suggesting in the draft that,

   Before Rule 8 (Use longest matching prefix) in section 5.  (Source
   Address Selection) in RFC3484, the rule using longest-matching prefix
   to the next hop is to be added.

The following is an example, 
where the Rule 8 selects the roundabout path via ISP3,
while the method of using longest-matching prefix to the next hop 
selects the shortest and best path,
when EN sends a packet to CN.

# In the previous IETF meeting I only showed a single router case.
# but this method is adaptable and useful to the multiple router case.

I would like to ask if 6man people is interested in this topic, and
this can become working group item.

                         +---+
                         |CN |
                         +-+-+
                           | 2001:db8:2001::CN
                           |
                       +---+---+2001:db8:2000:/36
                       |       |
             +---------+ ISP2  |
             |         |       |
             |         +-------+
             |
         +---+---+2001:db8:1000:/36  +-------+2001:db8:3000::/36
         |       |                   |       |
         | ISP1  +-------------------+ ISP3  |
         |       |                   |       |
         +---+---+                   +---+---+
             |                           |
             |                           |
             +----------+       +--------+
        2001:db8:1000:R1|       |2001:db8:3000:R3
                      +-+-+   +-+-+
    2001:db8:1001::/48|R1 |   |R3 |2001:db8:3001::/48
                      +-+-+   +-+-+
      2001:db8:1001:1:R1|       |2001:db8:3001:1:R3
                        |       |
                      --+---+---+--
         2001:db8:1001:1:EN | 2001:db8:3001:1:EN
                          +-+-+
                          |EN |
                          +---+

     Routing Tables:
       R1:
       Destination         Next Hop
       2001:db8:1000::/36  address_of_ISP1's_router
       2001:db8:2000::/36  address_of_ISP1's_router
       R3:
       2001:db8:3000::/36  address_of_ISP3's_router
       EN:
       Destination         Next Hop
       2001:db8:1000::/36  2001:db8:1001:1:R1
       2001:db8:2000::/36  2001:db8:1001:1:R1
       2001:db8:3000::/36  2001:db8:3001:1:R3

Any questions and comments are welcome.

Regards,
------------------------------------------------------------------
FUJIKAWA Kenji(Ph. D.) ROOT Inc., Osaka Information Laboratory
5F Pias Tower, 3-19-3 Toyosaki Kita-ku, Osaka, 531-0072, Japan
Mail:  [e-mail], [e-mail]
WWW:   http://www23.atwiki.jp/hudikaha/
Skype: fujikawakenji
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