Moblie

Friday, April 1, 2016

NAT and PAT on single IP

1. LAN will access the internet same WAN IP
2. Server will access outside  same WAN IP with static PAT server use port tcp / udp 9000




Router Config

interface FastEthernet0/0
 description WAN
 ip address 89.41.134.112 255.255.255.252
 ip nat outside.

interface FastEthernet0/1
 description LAN
 ip address 192.168.2.1 255.255.255.0
 ip nat inside

 ip nat inside source list 101 interface FastEthernet0/0 overload
ip nat inside source static tcp 192.168.2.5 9000 interface FastEthernet1 9000
ip nat inside source static udp 192.168.2.5 9000 interface FastEthernet1 9000

!


access-list 100 deny   ip 192.168.0.0 0.0.255.255 192.168.0.0 0.0.255.255
access-list 100 deny   ip 192.168.0.0 0.0.255.255 10.0.0.0 0.255.255.255
access-list 100 permit ip 192.168.0.0 0.0.255.255 any

 Router#sh ip nat translations
Pro Inside global                  Inside local                Outside local        Outside global
tcp  89.41.134.112 :9000    192.168.2.5 :9000    101.57.166.85:50942  101.57.166.85:50942


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