In order to establish the translation, issue these commands on the PIX Firewall:
pixfirewall>enable
pixfirewall#configure terminal
pixfirewall (config t)#static (inside, outside) 14.62.31.228 172.16.4.22
At this point, any traffic destined for 14.62.31.228 is redirected to 172.16.4.22. But, an Access Control List (ACL) statement or conduit must be created in order to allow the specified traffic to pass.
If no previous ACL exists, allow HTTP traffic to reach the server from the Internet and issue these commands:
pixfirewall (config t)#access-list
internet permit tcp any host 14.62.31.228 eq 80
pixfirewall (config t)#access-group internet in interface outside
At this point, external users should be able to access the web server using HTTP.
Refer to these documents for more information on on how to configure static NAT on the PIX/ASA Firewall.
