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 From:  "Kristian Shaw" <monowall at wealdclose dot co dot uk>
 To:  <m0n0wall at lists dot m0n0 dot ch>
 Subject:  Re: [m0n0wall] Monowall in the UK with multiple IP's - Which Modem?
 Date:  Wed, 2 Nov 2005 18:55:29 -0000
Hello,

I've got a /30 from Eclipse and that's all you get. Your ADSL modem is 
automatically assigned the first address in the /30.

Some ADSL routers allow you to configure the LAN address to match the WAN 
address, which then leaves you one more usable address for the WAN side of 
your firewall.

Kris.

----- Original Message ----- 
From: "David Cook" <david dot cook at jetpress dot com>
To: <mono at wiredplace dot com>; <m0n0wall at lists dot m0n0 dot ch>
Sent: Wednesday, November 02, 2005 4:26 PM
Subject: RE: [m0n0wall] Monowall in the UK with multiple IP's - Which Modem?


Steve,

I've had a look at Eclipse's tech support pages. Looks like you have been 
allocated a /30 block of addresses, 4 in total 2 usable (2 are the network 
and broadcast addresses). This is in addition to a single address that is 
allocated to the ADSL router automatically when it connects to the service.

A /30 block is ideal for m0n0wall and a cheap no-frills ADSL-ethernet router 
will do the job as long as Network Address Translation can be disabled. NAT 
will be performed at your m0n0wall.

The two addresses you have are assigned to the Ethernet interface of the 
ADSL router and the WAN interface of m0n0wall. m0n0wall uses the address 
assigned to the Ethernet interface of the ADSL router as its default 
gateway.

The instructions that Eclipse have for configuring a Speedtouch for no-NAT 
should give you a better idea of what I mean, but use 255.255.255.252 as a 
subnet mask. The subnet mask of 255.255.255.248 used in their example is for 
a /29 address block.

A suitable cheap router is the Conexant chipset based Dynamode R-ADSL-C4S @ 

(http://www.scan.co.uk/Products/ProductInfo.asp?WebProductID=96221). We use 
these all the time together with m0n0wall on Soekris hardware. Just disable 
the routers internal firewall and NAT.

Regards

David Cook

> -----Original Message-----
> From: mono at wiredplace dot com [mailto:mono at wiredplace dot com]
> Sent: 02 November 2005 13:27
> To: m0n0wall at lists dot m0n0 dot ch
> Subject: RE: [m0n0wall] Monowall in the UK with multiple IP's - Which
> Modem?
>
>
> On Wed, 2 Nov 2005, David Cook wrote:
>
> > How are your IPs allocated, do you have a single address allocated to
> > the router/modem and then an additional block?
>
> At the moment i only have 2 sequential ip address, but I have the option
> of getting more if I fill in a form.
>
> > Who is your ISP?
>
> Eclipse
>
> Cheers
>
> Steve
>
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