Linux nat issues through cisco asa firewall
Posted on 2011-05-08
hello, my office has a customised web application running on a Linux box. they need access to this application from outside the office and i have a Cisco asa at the perimeter. i did the normal stuff i.e. created a static Nat for the Linux box via the asa. Now this is my issue, the web application has a home page which opens up, after which you need to log on to an account, on clicking the log on button, new page is supposed to open up, this new page is trying to open up using the local ip address of the server and not the translated address, you notice this because the url address in your browser actually changes from the global ip it had before to the local ip of the Linux box. At this point the page cannot open any further since it is an unroutable address and all stops.
I spoke with the application developers and they tell me that the web application will respond back to a request using the ip address of the interface card through which the request arrived which is why the ip address of the browser is changing, thus am beat, is there a way I can get the Cisco asa to work around this?