On Wed, Jul 18, 2018 at 12:59:42PM +0300, Владислав Гришин wrote:

After update bird not announce prefixes with the same filter in config

Hi, works for me (with 1.6.4, your filter and two test routes):

BIRD 1.6.4 ready.
bird> show route preexport bgp1
10.1.10.0/24       via 10.1.1.10 on ve0 [static1 14:19:22] * (200)
10.1.11.0/24       via 10.1.1.10 on ve0 [static1 14:19:22] * (200)
10.4.10.0/24       via 10.0.4.1 on ve2 [bgp2 14:19:27] * (100) [AS40i]
10.4.11.0/24       via 10.0.4.1 on ve2 [bgp2 14:19:27] * (100) [AS40i]
193.9.244.0/22     dev lo [static1 14:19:22] * (200)
91.211.216.0/22    dev lo [static1 14:19:22] * (200)
bird> show route export bgp1
193.9.244.0/22     dev lo [static1 14:19:22] * (200)
91.211.216.0/22    dev lo [static1 14:19:22] * (200)

Other side:

bird> show route 91.211.216.0/22 all
91.211.216.0/22    via 10.0.1.1 on ve2 [bgp2 14:19:28] * (100) [AS10i]
    Type: BGP unicast univ
    BGP.origin: IGP
    BGP.as_path: 48720 48720 48720 48720 10
    BGP.next_hop: 10.0.1.1
    BGP.local_pref: 100
    BGP.community: (8905,1050)


Main question is whether do you see these routes in your local table.

Vladislav Grishin