Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

Access a public IP using a private alias address

I have a rather compicate task to do on a Pix firewall and I am not sure if it is supported or how I could do it. My current IOS ver is 6.3

I have a PIX firewall that separates to lans, a set of public servers and my internal management LAN.

Suppose my private lan is 192.168.111.0/24 and my public is 111.111.111.0/24

What I want to do is hosts in Private Lan to access a couple of hosts in public LAN by using a private address.

To be more specific suppose I have a public host with IP 111.111.111.11 and I want a management host in private LAN to access the above host by using IP 192.168.111.11. So if a host in Private LAN (192.168.111.0/24) tries to access services of the specific host on the public LAN, will be able to telnet it, ftp it, by using 192.168.111.11 instead of 111.111.111.11.

Can anyone help me?

Private IP ----(>|)---- Public IP's

(192.168.111.0/24 ) (111.111.111.0/24)

(Alias Host A: 192.168.111.11) --->(Host A: 111.111.111.11)

What I also forgot to mention is that currently I am using interface PAT and would rather leave it like that if possible to work with the above scenario.

2 REPLIES
Silver

Re: Access a public IP using a private alias address

Is the public host actually on the outside interface, or is it on a dmz and being NAT'ed by the firewall?

New Member

Re: Access a public IP using a private alias address

The public host is outside the interface. The thing is that other private LAN segments exist on the INTERNAL network as well.

237
Views
0
Helpful
2
Replies
CreatePlease to create content