Re: Webserver and NAT (can access from outside, not inside)
If you want both
Static NAT the Server local IP to a Public IP
NAT the Server so that it can be reached from the LAN with the public IP address
Then you could use the following types of configurations
Static NAT from LAN to WAN
object network SERVER-STATIC
nat (LAN,WAN) static 126.96.36.199
10.0.0.200 = Server local IP address
188.8.131.52 = Public IP address dedicated for this server
LAN and WAN = Inside and Outside interfaces
Dynamic Policy PAT coupled with the Static NAT (Twice NAT) for the Server for LAN users
object network LAN
subnet 10.0.0.0 255.255.255.0
object network SERVER-LOCAL
object network SERVER-GLOBAL
nat (LAN,LAN) source dynamic LAN interface destination static SERVER-GLOBAL SERVER-LOCAL
10.0.0.0/24 = Is the LAN network
10.0.0.200 = Is the server local IP address
184.108.40.206 = Is the server public IP address
The first NAT configuration is a simple Static NAT using "Network Object NAT" and its only purpose is to NAT the server local IP address to a public IP address for users on the Internet.
The second NAT configuration is a Dynamic Policy PAT with also the Static NAT done with a Twice NAT / Manual NAT configuration.
The way it works is that when the ASA sees a connection coming from the network LAN to the Public IP address then it will PAT the LAN users to the interface LAN IP address and it will also UN-NAT the public IP address to the local IP address of the server. This will enable you to connect to the server using the public IP address even from the LAN.
Hope I made any sense. Please do ask more if I didnt
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