Reject route

[Elder Costa]

Once again thank Kurt !! 
I created the filter and it worked perfect... 



De: "Kurt Wauters" <kuwauters at gmail.com> 
Para: "Elder Costa" <elder.costa at talklink.com.br> 
Cc: "bird-users" <bird-users at network.cz> 
Enviadas: Quinta-feira, 21 de fevereiro de 2019 14:21:00 
Assunto: Re: Reject route 

hi elder, 

depends on what you want. normally the smallest allowed prefixes on the internet are /24. you should always try to be as specific as possible in order to avoid strange behavior. 

I think you only have 1 prefix to reject do then its better build a reject filter as a permit filter would be too hard to maintain 

Kind regards 
kurt 

Op do 21 feb. 2019 17:31 schreef Elder Costa < [ mailto:elder.costa at talklink.com.br | elder.costa at talklink.com.br ] : 



Thanks Kurt ! 
This what i needed ! 
Plus one question... 
What would be the best practice in building this filter ? 
Would have with build for reject when gateway is a specific, our just by net ? 



De: "Kurt Wauters" < [ mailto:kuwauters at gmail.com | kuwauters at gmail.com ] > 
Para: "Elder Costa" < [ mailto:elder.costa at talklink.com.br | elder.costa at talklink.com.br ] > 
Cc: "bird-users" < [ mailto:bird-users at network.cz | bird-users at network.cz ] > 
Enviadas: Quinta-feira, 21 de fevereiro de 2019 12:03:56 
Assunto: Re: Reject route 

an inbound bgp filter where you reject the route, no? 

Op do 21 feb. 2019 14:59 schreef Elder Costa < [ mailto:elder.costa at talklink.com.br | elder.costa at talklink.com.br ] : 

BQ_BEGIN

Hi !!! 
I need reject one route to AS coming from one AS particular... 
Is there are possibility ? 
The objective are use other link to upstream... 
Thank so much ! 





BQ_END


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