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Cisco 678 Multiple public IP's NAT to privates

Hi, we've got a Cisco 678 serving our DSL connection, and a block of public IP's from the ISP. I'd like to be able to route certain public IP's to certain private IP's, irregardless of port number. Can the 678 do this?

For example, all traffic to:

public IP 204.248.1.2 -> private 192.168.1.10 AND

public IP 204.248.1.3 -> private 192.168.1.13.

The documentation shows routing public IP/port # to private IP/port #, but (1) doesn't exactly say if I can do this for multiple IP's, and (2) doesn't say if I can do it for all ports not just a given port #.

Thanks.

Bob.

2 REPLIES
New Member

Re: Cisco 678 Multiple public IP's NAT to privates

Greetings:

I do not have a 678 in front of me, but if it can do the following command, you can do it.

ip nat inside source static 10.0.1.2 225.143.68.2

The first address is the internal and the second the external. This is a one for one mapping and

you cannot use either address for anything else.

Thanks...Steve

Cisco Employee

Re: Cisco 678 Multiple public IP's NAT to privates

67x cpe's dosen't support NAT but it only support PAT..So multiple ip address maping is not possible with 678 but PORT mapping is possible.

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