Hi, I want to ask to more experimented network admisnitrators about a problem that I am experimenting and I don't know how to solve:
I have a PIX 515E running 6.3(4) IOS and there are 2 networks configured on it:
Outside 192.168.0.0 /24 (security level 0) and Inside 172.21.0.0 /24 (security level 100).
I used without problems the Static command for mappings from Outside to Inside, using a "virtual IP" in the Outside interface for accesing a host located on the Inside LAN.
Now I need to do the same but in the other direction. I need to use a "virtual IP" in the Inside interface for accessing a host located on the Outside network.
192.168.0.5 --> NAT --> 172.21.0.5 Works O.K.
172.21.0.10 --> NAT --> 192.168.0.10 I need this mapping
Is it possible to do this running this version of IOS? How can I make this NAT mapping work? I tried a lot of things but no one worked, and I don't know where to find more information about this.
Thank you all for your time, and please excuse my very poor english.