hostname r1
!
interface r1-eth0
  ip address 192.168.210.1/24
!
interface r1-eth1
  ip address 192.168.211.1/24
!
interface r1-eth2
  ip address 192.168.212.1/24
!
interface r1-eth3
  ip address 192.168.213.1/24
!
interface r1-eth4
  ip address 192.168.214.1/24
!
interface r1-eth5
  ip address 192.168.215.1/24
!
interface r1-eth6
  ip address 192.168.216.1/24
!
interface r1-eth7
  ip address 192.168.217.1/24
!