frr defaults traditional
hostname r2
log file /tmp/ospfd.log
!
interface lo
 ip address 10.205.0.2/32
!
! hacia r1
interface eth1
 ip address 10.205.12.2/30
 ip ospf network point-to-point
!
! hacia r3
interface eth2
 ip address 10.205.23.1/30
 ip ospf network point-to-point
!
! hacia r4
interface eth3
 ip address 10.205.24.1/30
 ip ospf network point-to-point
!