[c-nsp] Outside NAT issue

[Bunny Singh]

HI, 
 
I have a ASA Firewall 5550 connected to both outside and customer interface. Default route is there towards outside interface (Internet). 7600 router is connected towards customer interface and ospf is running.
 
Now i have one private network  (10.10.10.0/24) on 7600 router. I want to access one machine having IP 10.10.10.15 from other place via internet (it required to be access from anywhere internet) . I have tried to do the static nat for the same ip in firewall, but still i am not able to receive the icmp reply. I have checked through wireshark and found that the source coming to the 10.10.10.15 was 77.77.77.77 which is not available on the 7600 router but reachable through firewall.
 
 
  following are the command
 
static (customer,outside) 119.252.X.X 10.10.10.15 255.255.255.255
 
(we have our own public ip's i.e 119.252.x.x)
 
 
So how i can access the machine or any other config i can to fullfill my requirement.
 
Regards
Bunny