I tyr to configure NAT for two subnets that I have, I have this command
Router(config) # access-list 101 permit tcp y.y.y.y 0.0.0.255 host x.x.x.x
then I put the nat outside in host x.x.x.x
Router(config)# int fa0/1
Router(config-if)# ip nat outside
Router(config)# ip nat outside source list 101 interface fa 0/1
but when i try to ping from any host in y.y.y.y network, I can't do.
Thanks for the tips,,,