Source NAT on 857

[francescopaolini]

Hi everyone. A customer asked us to configure a cisco 857 (ios 12.5) with a feature I haven't ever configured. He has a NAT between fa0 and dialer0 when connecting to an adsl line. he needs to connect to an internal server using the public NATed address. to be more clear, let's say that 1.1.1.1 is the private server address. 1.1.1.2 is an inside client. 2.2.2.1 is the public (NATed) address (the acl is already ok and a static is in place, from outside works).

1.1.1.2 needs to connect to 2.2.2.1. is it possible?

thanks in advance

[andrew.prince]

I know this is possible with a PIX/ASA - never tried with a router.

Check out the below link:-

http://www.cisco.com/en/US/tech/tk648/tk361/technologies_tech_note09186a0080094e77.shtml

Go to the section "Example: Using NAT During a Network Transition" - this may help you.

HTH>