For Router R1
----------------

en
conf t
hostname R1

interface Serial0
ip address 140.10.2.1 255.255.255.0
no shut

interface TokenRing0
ip address 140.10.1.1 255.255.255.0
ring-speed 4
no shut

exit
router rip
network 140.10.1.0
network 140.10.2.0
end
wr m
sh run
sh ip route


For R2
--------

en
conf t
hostname R2
int s1
ip address 140.10.2.2 255.255.255.0
clock rate 4000000
no shut

int e0
ip address 160.10.1.1 255.255.255.0
no shut

int s0
ip add 160.10.2.1 255.255.255.0
no shut
exit
router rip
network 160.10.2.0
network 160.10.1.0
network 140.10.2.0
end

wr m
sh run


For R6
----------
en
conf t
hostname R6
int s0
ip address 160.10.2.2 255.255.255.0
clock rate 4000000
no shut

int s1
ip add 160.10.3.2 255.255.255.0
clock rate 4000000
no shut

int e0
ip add 160.10.1.2 255.255.255.0
no shut

int e1
ip add 150.10.1.2 255.255.255.0
no shut
exit
router rip
network 160.10.1.0
network 160.10.2.0
network 160.10.3.0
network 150.10.1.0
end
wr m


For R3
---------
en
conf t
hostname R3
int s0
ip add 160.10.3.1 255.255.255.0
no shut

int s1
ip add 160.10.4.1 255.255.255.0
clock rate 4000000
no shut
exit
router rip
network 160.10.4.0
network 160.10.3.0

end
wr m
sh run


Router R5
----------

en
conf t
hostname R5
int s0
ip add 160.10.4.2 255.255.255.0
no shut

int s1
ip add 150.10.2.2 255.255.255.0
clock rate 4000000
no shut

int e0 
ip add 130.10.10.100 255.255.255.0
no shut
exit
router rip
network 130.10.10.0
network 150.10.2.0
network 160.10.4.0
end
wr m
sh run

Router r4
---------
en
conf t 
hostname R4
int s0
ip add 150.10.2.1 255.255.255.0
no shut

int e0
ip address 150.10.1.1 255.255.255.0
no shut
exit
router rip
network 150.10.1.0
network 150.10.2.0
end
wr m
sh run