I have one public IP address but multiple local servers that run on the same port. I cannot change the port the clients use to connect to this server, so I can't do a port map in my NAT router. The solution I had in mind, is to filter on source address. If a client from public IP X.X.X.X connects to port Z, I want it to go to internal server 10.10.10.10 and if a client from public IP Y.Y.Y.Y connects to port Z, I want it to go to internal server 10.20.20.20. Is this possible?
I'm using an ASA5510 but I could also switch to a 5505 for this.
Hello Julio. Thanks for your answer. Too bad port translation like this is not what I am looking for. The clients we use can only connect to a certain set of ports which we cannot change. So we cannot set the client up to connect to port 444 instead of 443, in your example.
We have customers using a hosted Terminal Server environment, all using different public IP addresses. We have a hosted Telephony solution that has no direct VPN connection to their TS environment. So, the CTI client will need to connect from their TS platform to our Telephony platform over public internet. However, they all use different servers on our side as well, and we'd like to use only one public IP address.
In the above situation, there is only one variable changing: The public IP address of the TS platform. So, if we could filter on source IP address (which would be the public IP address of the TS platform) and route based on this, we could run the whole environment with just one public IP address.
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...