[Gllug] Wrong ADSL modem/router?

[George F. Saxby]

On Sunday 16 March 2003 12:30 pm, David Damerell wrote:
> On Friday, 14 Mar 2003, Garry Heaton wrote:
> - you can do that on the Linux firewall box.

for example IPCop ( www.IPCop.org )

>
> Having said that, you may find the packet filtering abilities of a
> good ADSL modem to be satisfactory. Ours does NAT (OK if you have only
> 1 real IP address - we don't, but we don't use it for NAT, and anyway
> I digress) and will pass specific incoming ports to specific machines
> - perfectly adequate for most home setups and adequately secure. So
> your options are;
>
> phone socket --- ADSL router doing NAT, filtering --- all
>
>                                                   |-- internal
>
>                                                   \-- machines
>
> Or;
> phone socket --- ADSL router --- firewall box --- switch --- all
>
>                                                          |-- internal
>
>                                                          \-- machines
>
> There's nothing wrong with a 4-port router for this, but clearly you
> could get a 1-port job and save a bit of change. Or you could get an
> internal ADSL modem (warning; I have NO IDEA about Linux support for
> such things) for the firewall box in the above setup.

There is an ADSL pci card from PULSAR which has linux drivers works a treat 
with IPCop it is via this setup that you get this message :-}


the setup here is  demon ADSL line > IPCop with PULSAR pci adsl card & 2 
network cards > 16 Port 100Mb switch >  CAT5e net > a small hoard of Linux 
boxes & the odd darkside box some on green interface and a box in the orange 
DMZ.



>
> I prefer the second setup - in the first, expanding past 4 machines
> will mean you have to shell for a switch anyway.

-- 
Bandiera tuxa trionfera,
Evviva il penguin e la liberta
www.saltmine.org.uk
           
               George F. Saxby
     

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