[c-nsp] BGP blackhole community config

[Curtis Piehler]

Usually that is the case where your sent the community as ISP:NN.   However
in this case your provider is using 64682:0 to denote traffic as
blackhole.   Not an issue perse but that's what they are telling you is
what they honor as far as communities coming into their network.
On Jun 19, 2016 7:38 PM, "Satish Patel" <satish.txt at gmail.com> wrote:

> We have setup new BGP configuration with ISP and ISP has been told
> send community "64682:0" for blackholing. I am new in BGP.
>
> I was reading BGP community format is ASN:NN but my ISP ASN number
> isn't 64682 so i am assuming they gave me example (64682:0)
>
> This is what i configure in my router.
>
> router bgp 100
>  bgp log-neighbor-changes
>  redistribute static route-map RTBH
>  neighbor xx.xx.xx.xx remote-as 200
>
>
> route-map RTBH permit 10
>  match tag 666
>  set community <ISP_ASN>:666
>
> route-map RTBH permit 20
>
>
> I have send following null route but it didn't work :(
>
> ip route xx.x.x.xx 255.255.255.255 Null0 tag 666
>
>
> what i am doing wrong? how do i use community to send blackhole route?
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