Prefix hijacking by AS20115

Tue Sep 29 03:11:00 UTC 2015

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 at rollernet.us> wrote:

> On 9/28/15 18:30, William Herrin wrote:
>
>> On Mon, Sep 28, 2015 at 9:01 PM, Seth Mattinen <sethm at 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
>