!!!!!!!!!!!!!
!
! all Routers
!
conf t
!
ip domain name gns3.lab
no ip domain lookup
!
ena sec cisco
!
username admin priv 15 sec cisco
!
crypto key generate rsa
1024
ip ssh version 2
!
line vty 0 4
 login local
 transport input telnet ssh
 logging sync
 exec-t 0
!
end
wr


!!!!!!!!!!!!!
!
! R1
!
conf t
!
int lo 0
 ip address 10.10.10.1 255.255.255.255
 ip ospf 1 area 0
!
int fa 0/0
 descr -> mSOURCE
 duplex full
 ip address 192.168.0.254 255.255.255.0
 ip ospf 1 area 0
 no shut
!
int fa 1/0
 descr -> R2
 duplex full
 ip address 10.0.0.5 255.255.255.252
 ip ospf 1 area 0
 ip ospf network point-to-point
 no shut
!
int fa 1/1
 descr -> R3
 duplex full
 ip address 10.0.0.1 255.255.255.252
 ip ospf 1 area 0
 ip ospf network point-to-point
 no shut
!

router ospf 1
!
end
wr


!!!!!!!!!!!!!
!
! R2
!
conf t
!
int lo 0
 ip address 10.10.10.2 255.255.255.255
 ip ospf 1 area 0
!
int fa 1/0
 descr -> R1
 duplex full
 ip address 10.0.0.6 255.255.255.252
 ip ospf 1 area 0
 ip ospf network point-to-point
 no shut
!
int fa 4/0
 descr -> R3
 duplex full
 ip address 10.0.0.13 255.255.255.252
 ip ospf 1 area 0
 ip ospf network point-to-point
 no shut
!
router ospf 1
!
end
wr


!!!!!!!!!!!!!
!
! R3
!
conf t
!
int lo 0
 ip address 10.10.10.3 255.255.255.255
 ip ospf 1 area 0
!
int fa 0/0
 descr -> mReceiver1
 duplex full
 ip address 10.1.1.254 255.255.255.0
 ip ospf 1 area 0
 no shut
!
int fa 1/0
 descr -> R4
 duplex full
 ip address 10.0.0.9 255.255.255.252
 ip ospf 1 area 0
 ip ospf network point-to-point
 no shut
!
int fa 1/1
 descr -> R1
 duplex full
 ip address 10.0.0.2 255.255.255.252
 ip ospf 1 area 0
 ip ospf network point-to-point
 no shut
!
int fa 4/0
 descr -> R2
 duplex full
 ip address 10.0.0.14 255.255.255.252
 ip ospf 1 area 0
 ip ospf network point-to-point
 no shut
!
router ospf 1
!
end
wr


!!!!!!!!!!!!!
!
! R4
!
conf t
!
int lo 0
 ip address 10.10.10.4 255.255.255.255
 ip ospf 1 area 0
!
int fa 0/0
 descr -> mReceiver2
 duplex full
 ip address 10.1.2.254 255.255.255.0
 ip ospf 1 area 0
 no shut
!
int fa 1/0
 descr -> R3
 duplex full
 ip address 10.0.0.10 255.255.255.252
 ip ospf 1 area 0
 ip ospf network point-to-point
 no shut
!
router ospf 1
!
end
wr


!!!!!!!!!!!!!
!
! all Routers
!
conf t
!
ip host r1 10.10.10.1
ip host r2 10.10.10.2
ip host r3 10.10.10.3
ip host r4 10.10.10.4
!
end
wr


!!!!!!!!!!!!!
!
! CSw1
!
conf t
!
hostname CSw1
!
ip domain name gns3.lab
no ip domain lookup
!
ena sec cisco
!
username admin priv 15 sec cisco
!
crypto key generate rsa
1024
ip ssh version 2
!
line vty 0 4
 login local
 transport input telnet ssh
 logging sync
 exec-t 0
!
int range gi 0/0 - 1
 switchport mode access
 spanning-tree portfast
!
no ip routing
!
int vlan 1
 ip address 10.1.1.253 255.255.255.0
 no shut
!
ip default-gateway 10.1.1.254
!
ip host r1 10.10.10.1
ip host r2 10.10.10.2
ip host r3 10.10.10.3
ip host r4 10.10.10.4
!
end
wr




!!!!!!!!!!!!!
!
! CSw2
!
conf t
!
hostname CSw2
!
ip domain name gns3.lab
no ip domain lookup
!
ena sec cisco
!
username admin priv 15 sec cisco
!
crypto key generate rsa
1024
ip ssh version 2
!
line vty 0 4
 login local
 transport input telnet ssh
 logging sync
 exec-t 0
!
int range gi 0/0 - 1
 switchport mode access
 spanning-tree portfast
!
no ip routing
!
int vlan 1
 ip address 10.1.2.253 255.255.255.0
 no shut
!
ip default-gateway 10.1.2.254
!
ip host r1 10.10.10.1
ip host r2 10.10.10.2
ip host r3 10.10.10.3
ip host r4 10.10.10.4
!
end
wr




!!!!!!!!!!!!!
!
! SOURCE
!
conf t
!
int fa 0/0
 descr -> R1
 duplex full
 ip address 192.168.0.1 255.255.255.0
 no shut
!
ip route 0.0.0.0 0.0.0.0 192.168.0.254
!
end
wr


!!!!!!!!!!!!!
!
! RECEIVER1
!
conf t
!
int fa 0/0
 descr -> R1
 duplex full
 ip address 10.1.1.1 255.255.255.0
 no shut
!
ip route 0.0.0.0 0.0.0.0 10.1.1.254
!
end
wr


!!!!!!!!!!!!!
!
! RECEIVER2
!
conf t
!
int fa 0/0
 descr -> R1
 duplex full
 ip address 10.1.2.1 255.255.255.0
 no shut
!
ip route 0.0.0.0 0.0.0.0 10.1.2.254
!
end
wr