Re: Help with AS-Path manipulation

Dear, I understood. I'try to perform this. Em ter, 18 de set de 2018 07:08, Piotr Wydrych escreveu: > On 15.09.2018 11:46, Saku Ytti wrote: > > You could recreate the route via static route and depend on existing > > one. In static route you can attach AS-PATH in any way you want. > > > >ro

Re: Help with AS-Path manipulation

UT > b) network-based firewall running eBGP (ASnet => ASfw => ASnet => ASfw > => ASnet to firewall traffic between two VRFs) > c) security research, hijack detection testing > d) many things I likely don't know about, but are reasonable > > Lot of commercial BGP so

Re: Help with AS-Path manipulation

Fri, 14 Sep 2018 at 23:37, Marcio > wrote: > >> I'd like to perform a Hijacking but changing a soecific position of AS >> Path. Is it poasible to perform it with BIRD? If not, is there another way >> to do this? >> >> Em sex, 14 de set de 2018 12:37, Job Sni

Re: Help with AS-Path manipulation

know about, but are reasonable > > Lot of commercial BGP solutions support AS_PATH manipulation. > On Sat, 15 Sep 2018 at 07:01, Marcio > wrote: > > > > I'd like to perform a Hijacking but changing a soecific position of AS > Path. Is it poasible to perform it w

Re: Help with AS-Path manipulation

I'd like to perform a Hijacking but changing a soecific position of AS Path. Is it poasible to perform it with BIRD? If not, is there another way to do this? Em sex, 14 de set de 2018 12:37, Job Snijders escreveu: > Dear Marcio, > > What is your use case for extensive manip

Help with AS-Path manipulation

Dear, Could you help me with an information? Is there a way to generate an announce modifying the AS Path field using BIRD? For example, i´d like to announce a prefix with a false AS Path field where i could change it, inserting or removing an AS.

Re: Two ASes in iBGP configuration

Wydrych, Thanks for help me. I was able to use this configuration and it solved my problem. 2018-09-13 16:28 GMT-03:00 Piotr Wydrych : > On 13.09.2018 18:02, Marcio wrote: > >> I have a BIRD router performing a iBGP connection with a ExaBGP software >> acting like a route co

Re: Routes received from another AS marked as IGP

ermail/bird-users/2018-June/012380.html > > A best practice is most probably to mark/left everything as Origin=IGP in > order to completely ignore this (now useless) attribute in the BGP path > selection algo. > > Le 13 sept. 2018 à 16:49, Marcio a > écrit : > > Dear, > &

Two ASes in iBGP configuration

Dear, I have a BIRD router performing a iBGP connection with a ExaBGP software acting like a route collector. When BIRD receives an announcement, it forward to the ExaBGP. I think the BIRD is forwarding only the announcements that change the best path to a prefix but, actually i need that all anno

Routes received from another AS marked as IGP

Dear, I have a topology where each AS is represented by a BIRD router. But in the BIRD table of the routers. The announcements received are marked as IGP but all the BGP sessions are done between different ASes. Do you know why it occur? Follow an example about a prefix announced by two different

Re: Question about BIRD feature.

Thanks, I will try to investigate this. 2018-09-13 10:40 GMT-03:00 Piotr Wydrych : > Hi, > > On 12.09.2018 21:32, Marcio wrote: > >> Is it possible to know which criteria BIRD used to prefer one route >> rather than another directed to the same BGP prefix?

Question about BIRD feature.

Dear, Is it possible to know which criteria BIRD used to prefer one route rather than another directed to the same BGP prefix?

Re: Problem to receive an announcement in BIRD.

at you want. What you provided, > seems legit by default. > > Maria > > On September 2, 2018 8:59:17 AM GMT+02:00, Marcio < > marciovinicius.san...@uniriotec.br> wrote: >> >> Yes, i have. This is a problem? BGP don't avoid loops automatically >> finding i

Re: Problem to receive an announcement in BIRD.

Yes, i have. This is a problem? BGP don't avoid loops automatically finding it own ASN in AS PATH? Em dom, 2 de set de 2018 03:27, Maria Jan Matějka escreveu: > > > Now there is one route originated from R. > > >> > 2018-09-01 21:21:08.000 SDNRTR: Got UPDATE > >> > 2018-09-01 21:21:08.000 SDNR

Re: Problem to receive an announcement in BIRD.

Do you know why SDNRTR route was added as the best and, after that, it was rejected? Em dom, 2 de set de 2018 02:08, Maria Jan Matějka escreveu: > On September 1, 2018 11:23:40 PM GMT+02:00, Marcio < > marciovinicius.san...@uniriotec.br> wrote: > > Dear, > > > &g

Problem to receive an announcement in BIRD.

Dear, I have a topology with many ASes using BIRD except one. This AS(called SDNRTR) is using a SDN technology and it is programmed to announce some prefixes. When it announces, some of it neighbors(BIRD ASes) are rejecting the announcement. Follow the line in BIRD logs. 2018-09-01 21:21:08.000