nanog mailing list archives

Re: Prefix hijacking by AS20115


From: Josh Luthman <josh () imaginenetworksllc com>
Date: Mon, 28 Sep 2015 23:11:00 -0400

Start announcing their prefixes?

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Sep 28, 2015 11:09 PM, "Seth Mattinen" <sethm () rollernet us> wrote:

On 9/28/15 18:30, William Herrin wrote:

On Mon, Sep 28, 2015 at 9:01 PM, Seth Mattinen <sethm () rollernet us>
wrote:

I've got a problem where AS20115 continues to announce prefixes after BGP
neighbors were shutdown. They claim it's a wedged BGP process but aren't
in
any hurry to fix it outside of a maintenance window.


If they weren't lying to you, they'd fix it now. That's not the kind
of problem that waits.

Thing is: they lied to you. Long ago they "helpfully" programmed their
router to announce your route regardless of whether you sent a route
to them. They want to wait for a maintenance window to remove that
configuration.


I'm at a loss of what else I can do. They admit the problem but won't take
action saying it needs to wait for a maintenance window. Am I out of line
insisting that's an unacceptable response to a problem that results in
prefix/traffic hijacking?


Try dropping the link entirely. If they still announce your addresses,
bring it back up but report it as emergency down, escalate, and call
back every 10 minutes until the junior tech understands that it's time
to call and wake up the guy who makes the decision to fix it now.



I'm at the tail end here almost 8 hours later since the hijacking started.
Their NOC is just blowing me off now and they're happy to continue the
hijacking until it's convenient for them to have a maintenance window. And
that's apparently the final decision.

~Seth



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