frr defaults traditional
hostname isp2
interface eth1
 ip address 100.64.72.1/24
interface eth2
 ip address 10.208.2.1/30
interface eth3
 ip address 10.208.100.2/24
router bgp 64702
 bgp router-id 10.208.0.2
 no bgp ebgp-requires-policy
 timers bgp 3 9
 neighbor 10.208.2.2 remote-as 64710
 neighbor 10.208.2.2 description t (proveedor)
 neighbor 10.208.2.2 advertisement-interval 0
 address-family ipv4 unicast
  network 100.64.72.0/24
 exit-address-family
! Lo que un ISP le ofrece a un peer: solo lo que origina. La sesión se crea en el paso
! de peering; esta regla ya queda lista.
bgp as-path access-list PROPIAS seq 5 permit ^$
route-map SOLO-PROPIAS permit 10
 match as-path PROPIAS