R1
-------------------------------------------------------------------------------------------
en
conf t
ho R1
line con 0
exec-t 0 0
exit
inter lo 0
ip add 8.8.8.1 255.255.255.255
no shut
exit
inter s1/1
ip add 172.16.1.1 255.255.255.0
no shut
exit
inter s1/2
ip add 172.16.2.1 255.255.255.0
no shut
exit
inter s1/3
ip add 172.16.3.1 255.255.255.0
no shut
ip policy route-map cisco
exit
access-list 1 permit  1.1.0.0 0.0.255.255
access-list 2 permit  1.2.0.0 0.0.255.255
route-map cisco permit 10
 match ip address 1
 set ip default next-hop 172.16.1.2
route-map cisco permit 20
 match ip address 2
 set ip default next-hop 172.16.2.4
route-map cisco permit 30
 set default interface null 0

-------------------------------------------------------------------------------------------

R2
-------------------------------------------------------------------------------------------
en
conf t
ho R2
line con 0
exec-t 0 0
exit
inter lo 0
ip add 8.8.8.2 255.255.255.255
no shut
exit
inter s1/1
ip add 172.16.1.2 255.255.255.0
no shut
inter s1/0
ip add 192.168.1.2 255.255.255.0
no shut
exit

-------------------------------------------------------------------------------------------

R4
-------------------------------------------------------------------------------------------
en
conf t
ho R4
line con 0
exec-t 0 0
exit
inter s1/1
ip add 192.168.2.4 255.255.255.0
no shut
exit
inter s1/2
ip add 172.16.2.4 255.255.255.0
no shut
exit

-------------------------------------------------------------------------------------------

R5
-------------------------------------------------------------------------------------------
en
conf t
ho R5
line con 0
exec-t 0 0
exit
inter lo 0
ip add 8.8.8.5 255.255.255.255
no shut
exit
inter s1/3
ip add 172.16.3.5 255.255.255.0
no shut
exit
inter lo 1
ip add 1.1.1.1 255.255.0.0
no shut
exit
inter lo 2
ip add 1.2.1.1 255.255.0.0
no shut
exit
ip route 0.0.0.0 0.0.0.0 s 1/3