On Wed, Jan 07, 2004 at 11:24:06AM -0500, Chris Hoff wrote:
> I think the more appropriate question Mike is asking, is how to do PAT (Port Address 
> translation), even if the port may stay the same and the external IP address 
> changes. I do agree with Reinhard's answer - get a static IP address, but this still 
> may not help if there is only one address available. The best solution is to get a 
> range of static IP addresses that can be used for multiple static server address 
> translations.
>

Hi

I agree with you, static IP address is best solution, but sometimes it isn't
possible. In this case there is another solution:

Make new services, Manage->services New->Other
Fill box, Name and IP protokol
Example:
Name: vnc_redir
IP Protokol: 6

Then click "Advanced..."

Put in Match box
SRV_REDIRECT(external_vnc_port,internal_ip_adress,internal_vnc_port)

Example (my web server) SRV_REDIRECT(80,172.16.15.27,80)

Checkpoint redirect request from external interface, port 80 to internal ip
adress port 80. Of course you have to accept this connections in your rule base.

More informations http://oldfaq.phoneboy.com/fom-serve/cache/86.html

Bye

> If this is not available, what will need to be done is something similar to the 
> following:
>
> 1. Create objects for the external and internal IP addresses of the server needed 
> (the external will be the same as the IP of the firewall - click ok through the 
> dialogue box)
> 2. Create a NAT rule similar to the following:
>
> Original Packet                 Translated Packet
> Src     Dest            port            Src     Dest            port
> ANY     Ext-IP  VNC             Orig    Int-IP  Orig
>
> 3. Create a rule in the rule base allowing the connection. If possible, in the rule 
> base, limit the SRC to only the IP address that should be allowed to connect via VNC 
> to the machine.
>
> Hope this helps,
>

--
Michal Fric
ICZ,a.s.
V Olsinach 2300/75, 100 97 Praha 10, CZ
Tel.: +420 2 81 00 22 22
Fax: +420 2 81 00 22 44
mailto:[EMAIL PROTECTED]

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