Can I Nat from Internet to Multiple Devices on via single Public IP Address

grahamhyland · ‎02-20-2013

First of all , I really appreiciate that you are reading this and If you can help me please do respond. thanks

what I mean by this is

I have 8 Devices Inside my office that have local IP addresses . Eg 192.168.1.101 - 192.168.1.108.

These 8 Devices can access internet via NAT overload on a single Public IP address Eg 8.8.8.8

ip nat inside source list INTERNET_ACCESS interface Dialer1 overload

This works fine

However I want to access these 8 Devices from external. So I would like to do the reverse of the overload.

Example I want to map

8.8.8.8:101 to allow me to access 192.168.1.101

8.8.8.8:102 to allow me to access 192.168.1.102

8.8.8.8:103 to allow me to access 192.168.1.103

8.8.8.8:104 to allow me to access 192.168.1.104

8.8.8.8:105 to allow me to access 192.168.1.105

8.8.8.8:106 to allow me to access 192.168.1.106

8.8.8.8:107 to allow me to access 192.168.1.107

8.8.8.8:108 to allow me to access 192.168.1.108

I hope this question makes sense and more importantly I really hope its acheivable.

Is this Possible?

Thanks

Graham

Jennifer Halim · ‎02-20-2013

You can configure static PAT on 1 public IP Adddress.

What port do you want to access those internal addresses on?

Example:

ip nat inside source static tcp 192.168.1.101 101 interface dialer1 101

ip nat inside source static tcp 192.168.1.102 102 interface dialer1 102

...

jawad-mukhtar · ‎02-21-2013

Agree PAT wil help you regarding that.

Sample Confe of PAT is as follows

ip nat inside source static tcp (LAN IP) (LAN PORT NUMBER) (WAN IP ) (WAN PORT) extendble

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Jawad