[Gllug] Network configuration

[Alistair Mann]

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Thus spaketh Jonathan Dye on Friday 20 June 2003 8:36 am:
> Hi,
>
> I will shortly be getting ADSL (assuming my line tests pass) and with that
> I have been given eight ip addresses (although one is the network address
> and one the broadcast address).  My ISP has told me that the router they
> are sending me will be assigned one of these addresses.  I want to use the
> other 4 for my own machines behind a firewall machine.

Stop there. Only your firewall machine will need to have one of your eight IP 
addresses. m1, m2 and m3 would all get private addresses such as192.168.0.2  
and use the firewall's internal IP address as their gateway. The firewall 
would use NAT to get the traffic out onto the Internet. Only machines which 
are connected to the router need public IPs!

>  ----
>
> | m1 |-------
>
>  ----        |
>  ----      --------      ----------      --------
>
> | m2 |----| switch |----| firewall |----| router |---- internet
>
>  ----      --------      ----------      --------
>  ----        |
>
> | m3 |-------
>

Cheers,
- -- 
Alistair
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