[6bone] Dualing IPv6 announcements

Ethern Lin mclin@sinica.edu.tw
Mon, 12 May 2003 11:55:31 +0800


This is for upgraded purpose.
You can see when sTLA upgrade from /35 to /32, they will
announce these two prefix in case lost their IPv6 block during
the upgrade period.

Ethern
ASCC/TW

----- Original Message ----- 
From: "Hank Nussbacher" <hank@att.net.il>
To: <6bone@mailman.isi.edu>
Sent: Sunday, May 11, 2003 5:15 PM
Subject: [6bone] Dualing IPv6 announcements


> BT and JPNIC/WIDE are both announcing these prefixes:
>
> mcast#sho bgp ipv6 inc
> BGP table version is 479, local router ID is 192.114.99.52
> Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
> Origin codes: i - IGP, e - EGP, ? - incomplete
>
>     Network          Next Hop            Metric LocPrf Weight Path
> *  2001:200::/35    3FFE:2000:0:41D::22F
>                                                             0 559 6830
1752 ?
> *>                  2001:798:2020:10DD::1
>                                                             0 20965 11537
> 2500 i
> *  2001:200::/32    3FFE:2000:0:41D::22F
>                                                             0 559 6830
1752 ?
> *>                  2001:798:2020:10DD::1
>                                                             0 20965 11537
> 2500 i
>
> It looks like WIDE does "own" this:
> inet6num:     2001:200::/32
> netname:      WIDE-JP-19990813
> descr:        WIDE project
> country:      JP
> remarks:      upgraded from /35
> admin-c:      JM46-AP
> tech-c:       AK27-AP
> tech-c:       KN9-AP
> status:       ALLOCATED PORTABLE
> notify:       kato@wide.ad.jp
> notify:       kenken@sfc.wide.ad.jp
> mnt-by:       APNIC-HM
> mnt-lower:    MAINT-JP-WIDE
> changed:      hm-changed@apnic.net 20030423
> source:       APNIC
> so the question is why is BT announcing this and how come prefix filters
> aren't stopping this?
>
> -Hank
>
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