3-tier design/tunnelConfig

HQFW1#<input>show run</input>
Building configuration...

Current configuration : 1102 bytes
!
<notice><-- output omitted --></notice>
!
interface Tunnel0
 ip address 10.1.255.1 255.255.255.252
 mtu 1476
 tunnel source Ethernet0/0/0
 tunnel destination 80.112.80.11
!
HQFW1#<input>show ip int brie</input>
Interface              IP-Address      OK? Method Status                Protocol
 
FastEthernet0/0        10.0.0.2        YES manual up                    up
 
FastEthernet0/1        10.0.0.10       YES manual up                    up
 
Ethernet0/0/0          80.112.80.10    YES manual up                    up
 
<notice>Tunnel0                10.1.255.1      YES manual up                    up</notice>
 
Tunnel1                10.2.255.1      YES manual up                    up