I have some ports forwarded to the outside interface on my ASA 5505. Here is an example:
static (inside,outside) tcp interface pop3 192.168.1.2 pop3 netmask
255.255.255.255I want internal hosts to be able to connect to 191.168.1.2 by using DNS. I do not have a DNS server inside, so the hosts would have to use public DNS.
In the Cisco Security Appliance Command Line Configuration Guide I found something called DNS Reply Modification. I tried it:
static (inside,outside) x.x.x.x 192.168.1.2 netmask 255.255.255.255 dns (Where x.x.x.x is my outside ip address)
but got some sort of conflict:
WARNING: real-address conflict with existing static TCP inside:192.168.1.2/110 to outside:0.0.0.0/110 netmask
255.255.255.255I only have one public ip address, which is why I had to use port forwarding. Perhaps that's the problem.
Is there any way to accomplish this?
Thanks