Real IP under NAT

[DerAlSem]

Hello Chuck,

Monday, July 18, 2005, 7:16:38 PM, you wrote:

> DerAlSem wrote:
> [ ... ]
>> I've 5 external (real) IP, one is assigned on external if. Also there
>> are 20 internal computers with 192.168.0.* ip's (NAT+IPFW). I need to assign one
>> of that computer an external ip. Somebody told me, that it can be done
>> with ARP-proxy, but i couldn't find any info on that. 10x in advance.

> See "man natd":

>       -redirect_address localIP publicIP
>                   Redirect traffic for public IP address to a machine on the
>                   local network.  This function is known as static NAT.  Nor-
>                   mally static NAT is useful if your ISP has allocated a small
>                   block of IP addresses to you, but it can even be used in the
>                   case of single address:

>                         redirect_address 10.0.0.8 0.0.0.0

>                   The above command would redirect all incoming traffic to
>                   machine 10.0.0.8.


No, that won't work, because i need an external IP on LAN machine.

Ext IP adresses - 1.2.3.1-1.2.3.5
Gate ext_if - 1.2.3.1
Gate int_if - 192.168.0.1
LAN (via NAT) machines - 192.168.0.2-20
Another LAN (via NAT) machine - 1.2.3.2

How?

-- 
Best regards,
 DerAlSem                            mailto:deralsem at deralsem.com