NAT IP translation

[ahpark78]

Hi,

If I already have ip nat static inside source configuration on the interface S0,how can I do a IP Nat static inside for diff IP NAT translation on another interface??

Thanks in advanced.

ken L

[mahmoodmkl]

HI

Can u more briefly describe u r problem as it not clear.

Thanks

Mahmood

[ahpark78]

Hi Mahmood,

Something like I have this internal IP:

192.168.1.1

need to NAT to 203.10.5.1

and have another internal IP: 192.168.1.2

need to NAT to 203.10.5.2

The reason why is both are diff servers and have diff WAN external connection to come in to access..So I need to have diff IPs NATed to diff internal IPs.

thks Mahmood..

ken L

[mahmoodmkl]

HI

192.168.1.1

need to NAT to 203.10.5.1

this is correct.

and have another internal IP: 192.168.1.2

need to NAT to 203.10.5.2

u can nat it also.

but i didnt get u r third point i.e u have different wan external connection do u mean that u have different service providers ..?

Thanks

Mahmood

[ahpark78]

Sorry Mahmood,

I am confusing you, you can ignore the third point.

My problem is what you have stated .

Internal IP 192.168.1.2 NATe to 203.10.5.2

Internal IP 192.168.1.1 NATed to 203.10.5.1

and this must be done on same router..

thanks again!

ken L

[mahmoodmkl]

HI

u can go like this

ip nat inside source static 192.168.1.2 203.10.5.2

ip nat inside source static 192.168.1.1 203.10.5.1

ofcourse u can configure it.

Thanks

mahmood

[ahpark78]

Hi Mahmood,

How to differiate the "ip nat inside" that correspondence in between interfaces..??

eg:

if i hvave 2 interfaces:

int s0/0

which this interface takes the ip nat inside source static 192.168.1.2 203.10.5.2

and

int s0/1

which this interface takes seconde one

[ahpark78]

Example is,

How int s0/0 or S0/1 know which IP to take to NAT as both

also configured as "IP NAT inside"?

[mahmoodmkl]

HI

For successful NAT scenario u must have one interface as NAT INSIDE and one as NAT OUTSIDE without this i think it is not possible.

Thanks

Mahmood

[ahpark78]

Mahmood,

I think you are getting me there already..

Can I know what is the diff between NAT INSIDE AND NAT OUTSIDE??

Any good article read-up for this before my implementation??

thks!

rgds

kenny

[mahmoodmkl · Accepted solution]

HI

I hope this link will help u.

http://www.cisco.com/warp/public/556/5.html

Thanks

Mahmood

[ahpark78]

Thanks Mahmood! :D

I will rate this post as you have solved my problem.

Indeed can use both together..as below..

ip nat inside source static 192.168.1.2 203.10.5.2

ip nat inside source static 192.168.1.1 203.10.5.1

Thanks again! :D