Hi,
our announcement on nanog a few months ago of experiments involving BGP
updates containing large AS-sets [1] caused a few flames. Now we have an
in-depth document with results on the subject and would like to explain
what we intended to do.
We have presented our techniques at RIPE 50,
Hannigan, Martin wrote:
Yes, but last time you said you were going to use
_other peoples_ ASN's to test with and allow these
announcements beyond your borders.
Is this still the case?
The probing AS (call it Z) announces one of its prefixes to the Internet
with an AS-path that is not just
Thus, to stop its announcement from being propagated by ASes 1, 2, and
3, an AS (say AS12654) might announce one of its prefixes with an
AS-path of 12654 {1,2,3}.
won't that prevent 12654's announcements from being received by, as
opposed to propagated by, 1, 2, and 3?
randy
* Lorenzo Colitti:
So yes, the ASes inserted in the AS-set are operated by others, and yes,
the announcements are sent out to the Internet at large.
This approach is highly questionable. Any responsible ISP should kick
you off the net for announcing AS path containing ASNs without
Randy Bush wrote:
Thus, to stop its announcement from being propagated by ASes 1, 2, and
3, an AS (say AS12654) might announce one of its prefixes with an
AS-path of 12654 {1,2,3}.
won't that prevent 12654's announcements from being received by, as
opposed to propagated by, 1, 2, and 3?
On Thu, 2005-06-09 at 16:59 +0200, Florian Weimer wrote:
* Lorenzo Colitti:
So yes, the ASes inserted in the AS-set are operated by others, and yes,
the announcements are sent out to the Internet at large.
This approach is highly questionable. Any responsible ISP should kick
you off
Jeroen Massar wrote:
And it also makes clear why it didn't pop up in GRH, as when you insert
the GRH ASN 8298 it won't be announced to GRH and thus it doesn't get
detected and as quite a number of people check only there it can go
quite unnoticed in the IPv6 tables...*
Actually, we never
On 2005-06-09, at 10:59, Florian Weimer wrote:
* Lorenzo Colitti:
So yes, the ASes inserted in the AS-set are operated by others,
and yes,
the announcements are sent out to the Internet at large.
This approach is highly questionable. Any responsible ISP should kick
you off the net for
