| 10.10.10.229/24 (eth10)
+--+--+
| R1  |
+--+--+
   | .1 (eth2)
   |
   | 10.254.254.0/30
   |
   | .2 (eth1)
+--+--+
| R2  |
+--+--+
   | 10.158.72.11/24 (eth10)


r1(config)#show running-config
interface Ethernet2
   no switchport
   ip address 10.254.254.1/30

interface Ethernet10
   no switchport
   ip address 10.10.10.229/24

ip routing
ip route 10.158.72.0/24 10.254.254.2


r2(config)#show running-config
interface Ethernet1
   no switchport
   ip address 10.254.254.2/30

interface Ethernet10
   no switchport
   ip address 10.158.72.11/24

ip routing
ip route 10.10.10.0/24 10.254.254.1