hostname Router3
!
enable secret class
!
ip host Router1 172.16.2.33 172.16.1.2
ip host Router2 172.16.1.1 172.30.1.1 10.10.1.1
ip host Router3 10.10.1.2 172.30.2.1
!
interface Ethernet0
 ip address 172.30.2.1 255.255.255.0
 no shut
!
interface Serial1
 ip address 10.10.1.2 255.255.255.252
 no shut
!
router eigrp 100
 network 10.10.1.0
 network 172.30.2.0
 no auto-summary
!
line vty 0 4
 password cisco
 login
!
end