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

Top 10 high utilization traffic on cisco router

TOP  10 high traffic utilization results.
top talker result on cisco router
Top 10 high utilization traffic on cisco router
-----------------------------------------------------------
interface FastEthernet0/0
 description *** WAN Link ***
 bandwidth 3072
 ip address 79.51.100.X 255.255.255.252
 ip flow ingress
 ip flow egress
 speed 100
 full-duplex


!
ip flow-top-talkers
 top 10
 sort-by bytes


-------------------------------------------------------




Router-R1#sh ip flow top-talkers


SrcIf         SrcIPaddress    DstIf            DstIPaddress           Pr SrcP DstP            Bytes
Fa0/0         12.181.72.2     Fa0/1            69.71.200.186        32 749F 255A          3914K
Fa0/1         69.71.200.186   Fa0/0*        12.181.72.2            32 163C 4ECC        1087K
Fa0/0         69.71.202.118   Local          79.51.100.X           06 D88F 0017          936
Fa0/1         69.71.200.186   Fa0/0*        192.168.100.10      06 05F6 4261           152
Fa0/1         69.71.200.186   Fa0/0*        192.168.100.153    06 089B 2329           144
Fa0/1         69.71.200.186   Fa0/0*        192.168.100.154    06 08BD 2329          144
Fa0/1         69.71.200.186   Fa0/0*        192.168.100.151    06 09EB 2329           144
Fa0/1         69.71.200.186   Fa0/0*        192.168.100.151    06 05B3 2329           144
Fa0/1         69.71.200.186   Fa0/0*        192.168.100.151    06 09EB 2329           144
Fa0/1         69.71.200.186   Fa0/0*        192.168.100.151    06 05B3 2329            144
10 of 10 top talkers shown. 29 flows processed.
85_SanDiego#