bogus route: 2001::/16

[Michel Py]

>> itojun@iijlab.net wrote:
>> we are seeing a bogus route, namely 2001::/16, advertised from
>> AS 1003.  please stop it.  thanks.
> Ronald van der Pol wrote:
> It's 1103 and this is us, surfnet. I contacted Itojun offline
> because we are not announcing the prefix to 3274. We also do not
> see 2001::/16 in our routing table. We don't see the route, Itojun
> still does. Could the other ASes in the path below have a check?
> I suspect it is a buggy BGP implementation somewhere which is
> holding the route.

$0.02 from my side outside the path:

cisco3640#sh bgp ipv6 2001::/16
20834 6830 8733 2611 6774 4589 680 1275 762 6175 6435 109 1251 3265 7521 7521 7521 7521 4697 3425 293 4554 8954 10566 5408 2549 3274 1103

I think that the problem is within AS 8733 or AS 6774.

Note: I see some other prefixes out of whack, namely:

2001:280::/35
2001:738::/35
3FFE:1900::/24
3FFE:2F00::/24
3FFE:3400::/24
3FFE:8060::/28
3FFE:80D0::/28

Might help to narrow it down.

Michel.


*> 2001:280::/35
----------------
3FFE:B00:C18::8C 10566 3265 6939 5609 6830 15589 1275 680 5539 4589 8733 5511 4697 3425 293 109 22 65513 17715 3263 1654 3274 1103 1849 3320 2549 513 ?

3FFE:8270:0:1::40 20834 10566 3265 6939 5609 6830 15589 1275 680 5539 4589 8733 5511 4697 3425 293 109 22 65513 17715 3263 1654 3274 1103 1849 3320 2549 513 ?

*> 2001:738::/35
----------------
3FFE:B00:C18::8C 10566 5594 5378 1752 5539 8319 1275 3265 6939 8002 8664 15694 8627 790 3274 1103 2611 5511 2500 4697 3425 293 6175 6726 9044 513 20834 i

*> 3FFE:1900::/24
-----------------
3FFE:B00:C18::8C  10566 6175 10318 33 6939 2549 3274 1103 766 278 8002 6726 20834 8664 59650 59650 ?

*> 3FFE:2F00::/24
-----------------
3FFE:B00:C18::8C 10566 3265 7521 4697 14277 6435 109 15589 1275 20834 2549 3274 1654 8954 33 17715 3263 1103 2611 6774 8733 5511 2497 6939 145 12199 10318 6175 237 ?

*> 3FFE:3400::/24
-----------------
3FFE:8270:0:1::40 20834 3274 6175 10318 12199 237 3748 9270 2200 3425 293 1275 15589 5609 6939 14277 209 517 8954 10566 5594 559 1122 5539 6726 8664 2020 7777 ?

*> 3FFE:8060::/28
-----------------
3FFE:8270:0:1::40 20834 3274 6175 10318 33 3265 513 2549 5408 2603 1275 15589 10566 17715 109 6939 5424 i


*> 3FFE:80D0::/28
-----------------
3FFE:B00:C18::8C 10566 5594 6726 33 2497 4697 3425 293 5609 8954 1200 3265 1275 2607 2852 3263 1103 1849 3320 2549 3274 8319 3561 145 12199 237 i

3FFE:8270:0:1::40 20834 10566 5594 6726 33 2497 4697 3425 293 5609 8954 1200 3265 1275 2607 2852 3263 1103 1849 3320 2549 3274 8319 3561 145 12199 237 i