Cisco: NAT Dua Router Static Routing

R1:

Ethernet1/1 - ke Internet
Ethernet1/2 - R2: Ethernet 1/1
Ethernet1/3 - LAN

R2:

Ethernet1/1 - R1: Ethernet1/2
Ethernet1/2 - LAN

R1:

enable
configure terminal
  !
  ! NAT GNS3 gw 192.168.122.1
  interface ethernet1/1
    ip address 192.168.122.100 255.255.255.0
    ip address 192.168.122.101 255.255.255.0 secondary
    ip address 192.168.122.102 255.255.255.0 secondary
    ip nat outside
    no shutdown
    ip route 0.0.0.0 0.0.0.0 192.168.122.1
    ip nat pool no-overload 192.168.122.100 192.168.122.102 prefix 24
    ip nat inside source list 7 pool no-overload 
  interface ethernet1/2
    ip address 172.16.1.1 255.255.255.252
    ip nat inside
    no shutdown
    exit
  interface ethernet1/3
    ip address 192.168.1.1 255.255.255.0
    ip nat inside
    no shutdown
    exit
  ip route 192.168.2.0 255.255.255.0 172.16.1.2
  !
  ! access NAT permit ke LAN 192.168.1.0/24 & 192.168.2.0/24
  access-list 7 permit 192.168.1.0 0.0.0.255
  access-list 7 permit 192.168.2.0 0.0.0.255
  exit
copy running-config startup-config

R2:

enable
config terminal
   interface ethernet1/1
    ip address 172.16.1.2 255.255.255.252
    no shutdown
    exit
  interface ethernet1/2
    ip address 192.168.2.1 255.255.255.0
    no shutdown
    exit
  ip route 192.168.1.0 255.255.255.0 172.16.1.1
  ip route 0.0.0.0 0.0.0.0 172.16.1.1
  exit
copy running-config startup-config

Test

R1:

ping 192.168.2.1

R2:

ping 192.168.1.1

Setting Client

LAN 1 Client:

ip 192.168.1.2
gw 192.168.1.1

LAN 2 Client:

ip 192.168.2.2
gw 192.168.2.1

Pranala Menarik

• Cisco
• Cisco: NAT