Network Topology Diagram:
Cable Connectivity:
- Cross cable connectivity between R1 and R2 & R2 and Web Server
- Straight cable elsewhere.
Basic Configuration:
On SW1
# interface FastEthernet0/1
# switchport access vlan 10
# interface FastEthernet0/2
# switchport access vlan 10
# interface FastEthernet0/3
# switchport access vlan 10
# interface Vlan10
# ip address 10.10.10.250 255.255.255.0
In PCs – Configure IP address as 10.10.10.1/24 and 10.10.10.2/24 with default gateway of Router R1 IP address 10.10.10.254
On R1
# interface FastEthernet0/0
# ip address 10.10.10.254 255.255.255.0
# interface FastEthernet1/0
# ip address 200.20.20.1 255.255.255.0
# ip route 0.0.0.0 0.0.0.0 200.20.20.2
On R2
# interface FastEthernet0/0
# ip address 172.20.20.254 255.255.255.0
# interface FastEthernet1/0
# ip address 200.20.20.2 255.255.255.0
# ip route 0.0.0.0 0.0.0.0 200.20.20.1
In Server – Configure IP address as 172.20.20.20/24 with default gateway of Router R2 IP address 172.20.20.254
Scenario I – Learn Static NAT: Access Web Server 200.20.20.2 from any PC and practice how packets are translated at R2
Static NAT Configuration:
# ip nat inside source static 172.20.20.20 200.20.20.2
# interface FastEthernet0/0
# ip nat inside
# interface FastEthernet1/0
# ip nat outside
Scenario II – Learn PAT : Access Web Server 200.20.20.2 from any PC and practice how packets are translated at R1
PAT Configuration
# ip nat inside source list 1 interface FastEthernet1/0 overload
# access-list 1 permit host 10.10.10.2
# access-list 1 permit host 10.10.10.1
# interface FastEthernet0/0
# ip nat inside
# interface FastEthernet1/0
# ip nat outside
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