There are 3 router as shown in the picture. Consider they are in three different location & manage by three different administrator.Find the configuration of all the router below. you can see every thing is working fine by static route. The ip 10.10.10.1 & 11.11.11.1 between router R2 & R6 are working fine. The corresponding static route has been given in router R3.
consider there is another network 192.168.1.1 /192.168.1.2 need to communicate between Router R2 & router R6 & the administrator of router R3 is not available.So what the administrator of router R2 & R6 will do.
They can able to do this by GRE tunnel. The tunnel will be form between router R2 & R6. And any destination can be directly pass through the tunnel.
find all the router configuration below with the diagram & do the lab by yourself.
R2
interface Loopback0
ip address 10.10.10.1 255.255.255.0
!
interface Loopback2
ip address 192.168.1.1 255.255.255.0
!
interface Tunnel1
ip address 10.100.100.1 255.255.255.0
tunnel source 10.10.10.1
tunnel destination 11.11.11.1
!
interface FastEthernet0/0
ip address 2.2.2.1 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
ip forward-protocol nd
ip route 3.3.3.2 255.255.255.255 2.2.2.2
ip route 11.11.11.1 255.255.255.255 2.2.2.2
ip route 192.168.1.2 255.255.255.255 10.100.100.2
R3
interface FastEthernet0/0
ip address 2.2.2.2 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 3.3.3.1 255.255.255.0
duplex auto
speed auto
!
ip forward-protocol nd
ip route 10.10.10.1 255.255.255.255 2.2.2.1
ip route 11.11.11.1 255.255.255.255 3.3.3.2
R6
interface Loopback1
ip address 11.11.11.1 255.255.255.0
!
interface Loopback2
ip address 192.168.1.2 255.255.255.0
!
interface Tunnel1
ip address 10.100.100.2 255.255.255.0
tunnel source 11.11.11.1
tunnel destination 10.10.10.1
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 3.3.3.2 255.255.255.0
duplex auto
speed auto
!
ip forward-protocol nd
ip route 2.2.2.1 255.255.255.255 3.3.3.1
ip route 10.10.10.1 255.255.255.255 3.3.3.1
ip route 192.168.1.1 255.255.255.255 10.100.100.1
!
R6#ping 192.168.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 276/323/352 ms
