ip forwarding
interface r2-eth0
 ip address 192.168.1.2/24
!
ip route 192.168.2.0/24 192.168.1.6
interface r2-gre0
 ip address 176.16.1.2/32
 no link-detect
 ipv6 nd suppress-ra
!
ip route 4.4.4.0/24 176.16.1.4
ip route 5.5.5.0/24 176.16.1.5