Overload NAT with nat inside interface

[Alfredo Bosca Bataller]

I need to permit remote access to Checkpoint Firewall (172.27.0.2); however should configure
overload NAT to fa0/0(nat inside) so Checkpoint traffic will go back to Inet router; otherwise the
checkpoint send traffic by default route that is other Firewall.

Anybody knows how configure overload NAT with inside interface? I have made other onces but always with
the outside interface.

Attach the NAT topology.

Best regards,

[Alfredo Bosca Bataller]

My issu is that to change the source interface is necessary: "ip nat outside source..." command. However this command don't accept the overload option. Then, how could to change the source IP to Interface IP??

Thanks,