router bgp 65000
  no bgp ebgp-requires-policy
  neighbor 192.168.255.2 remote-as 65001
  neighbor 192.168.255.2 timers 3 10
  address-family ipv4 unicast
    neighbor 192.168.255.2 default-originate route-map default
  exit-address-family
!
ip prefix-list r2 permit 10.0.0.0/22
!
route-map default permit 10
  match ip address prefix-list r2
!
