frr defaults traditional
hostname r4
log file /tmp/ospfd.log
!
interface lo
 ip address 10.205.0.4/32
!
! hacia r2
interface eth1
 ip address 10.205.24.2/30
 ip ospf network point-to-point
!
! hacia r5
interface eth2
 ip address 10.205.45.1/30
 ip ospf network point-to-point
!
! la LAN de h4
interface eth3
 ip address 10.205.104.1/24
 ip ospf cost 10
!