Stopping the Router from forwarding the IP info about ban2bgp

[wladwm]

Hello.

If you want to customize route distribution policy you should set it on the router.
For example, if you dont want received announces propagate to ebgp peers - you can set well-known no-export community on incoming announces.
By default, routes will not propagate between ibgp peers (ibgp split-horizont rule).

[atulbunkar]

Thanks for the reply. I found that instead of no-export community option , the no-advertise was the better choice in our case.

[wladwm]

Supposed that blackhole routes should propagate to entire AS to stop evil traffic on every router.
Or, if you have routers with flowspec support, firewall traffic on AS border.
But sure you can use it as you wish :-)