2014-04-17 12:25 GMT+02:00 Gregory Edigarov <ediga...@qarea.com>:

> On 04/17/2014 12:24 PM, Tristan PILAT wrote:
>
>> 2014-04-15 18:42 GMT+02:00 Laurent Caron (Mobile) <
>> lca...@unix-scripts.info>
>> :
>>
>>  On 14 avril 2014 17:57:53 CEST, Tristan PILAT <tristan.pi...@gmail.com>
>>> wrote:
>>>
>>>> match from any community 64514:888 set nexthop blackhole
>>>>
>>>>  Hi,
>>>
>>> Make sure you dont accept from any but eg from group customers, make sure
>>> the address *does* belong to your customers space (to avoid a customer
>>> installing a blackhole route on a route you advertise).
>>> Make sure you do strip 64514:888 from other peers.
>>> ...
>>>
>>>  And what about the client side ? Which command should he enter if he
>>>> wishes
>>>> to blackhole ip 1.2.3.4 eg
>>>>
>>>> Is it something like that ? bgpctl network add 1.2.3.4/32 community
>>>> 64514:888
>>>>
>>> Exactly.
>>>
>>> Hi,
>>>
>> Thanks for your reply ! I just tested this in my lab and it's working like
>> a charm but only if I set "allow from any inet prefixlen 8 - 32" and this
>> is annoying.
>>
>> Is there a way to make this work with "allow from any inet prefixlen 8 -
>> 24" to accept /32 only for the blackhole ?
>>
>> --
>> Tristan
>>
> like this:
>
>
> allow from any inet prefixlen 8 - 24
> allow from any inet prefixlen 32 community 64514:888
>
>
That goes without saying after all :-) Thanks !

--
Tristan

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