You can "convert" the WIFI Linksys router into a WAP/switch by simply not
using the router features:

1) Disable the DHCP server so it won't compete with the Ericsson
2) Set the LAN IP (on the Linksys) to something on the Ericsson's subnet
(10.0.0.nn) but out of range of its DHCP server
3) Use one of the LAN ports to connect to the Ericsson and DO NOT connect
the WAN port to anything

Your "real" LAN will then be on the 10.0.0.0 subnet.
If you prefer your LAN to use the 192.168.1.0 subnet, then you can configure
the LAN and DHCP server properties of your Ericsson accordingly.

Hope this helps,

Steven Clark

----- Original Message -----
From: "Sergio Del Pino" <[EMAIL PROTECTED]>
To: <[email protected]>
Cc: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Wednesday, January 12, 2005 7:09 AM
Subject: Re: Getting past *two* NAT routers


> Sorry for this off-topic, but I think that is already off-topic from the
> previous message. (suggestions on where to ask this are accepted)
>
> I'm using a DSL modem router Ericsson connecting using pppoe that have a
nat
> and DHCP providing one LAN address (10.0.0.4)  to a WIFI Linksys Router
that
> get  that LAN address as its WAN address and provide nat and DHCP to the
> "real" lan 192.168.1.xxx wired and wireless machines.
>
> Graphically:
> {Clients} ----->WIFI  Linksys Router-------> DSL Ericsson Modem
> Router ------> Internet
> (192.168.1.xxx) (192.168.1.1/10.0.0.4)            (10.0.0.1/dyn public ip
> address)
>
> I'm not a IP/Network expert but I'm sure I'm doing something wrong using 2
> routers(with its services nat,dhcp,etc.) to provide internet access to the
> lan computers.
> My question is which is the 'elegant' way to provide internet access to
the
> lan with this equipment?
> should I convert the WIFI Linksys router into an access point? is this
> possible?, how?
> The DSL Ericsson modem router has a bridge feature, but not sure how to
use
> it.
>
> Any ideas are welcome!!
>
> Thanks in advance!
>
> Sergio
> Argentina
>
> > Message: 1
> > Date: Tue, 11 Jan 2005 07:42:10 -0600
> > From: Angelo Sarto <[EMAIL PROTECTED]>
> > Reply-To: Angelo Sarto <[EMAIL PROTECTED]>
> > To: PicaRules <[EMAIL PROTECTED]>
> > Subject: Re: Getting past *two* NAT routers
> > Cc: [email protected]
> >
> > You are correct it is not necessarily any different then what you are
> > doing now, but it moves services off of the Mac and onto the router,
> > allowing you to turn on and off the Mac without affecting Internet
> > connectivity.  Additionally a typical SOHO router usually provides
> > much more configuration options than ICS services (mac or pc).
> >
> > as for john solution this should work but we are simply reshuffling
> > the same components around and it has a chance of failure depending on
> > the operation of the ZyXel.
> >
> > Current Network
> >
> > {Clients} ----->Hub ------>  Mac  -------> Zyxel ------> Internet
> >                                    (PAT)           (NAT)
> >
> > John's Solution
> > {Clients + MAC} ----->Hub -------> Zyxel ------> Internet
> >                                                 (PAT)
> >
> > My first prooposed solution
> > {Clients + MAC} ----->Router-------> Zyxel ------> Internet
> >                                (PAT)           (NAT)
> >
> > You are correct that John's solution should work but now you will be
> > doing PAT on a router that has limited options, and may not support
> > PAT very well.  Additionally forwarding may be much more difficult in
> > this situation.  The reason why I proposed the solution are the
> > following:
> >
> > 1.  The router purchased can be completely controlled by you
> > 2.  Their would be no need for any computer in your network to support
> > Internet connectivity.  (that is any could be turned off)
> > 3.  This will allow you to replace the ZyXel device with a modem if
> > you wish (and your ISP is okay with it)
> > 4.  You can change service providers, other DSL ISP or even medium
> > (cable modem)  with only a single setting change  (change the router's
> > WAN type and address).
> >
> >
> >
> > --Angelo
> >
> >
> > On Mon, 10 Jan 2005 22:03:20 -0800 (PST), PicaRules
> > <[EMAIL PROTECTED]> wrote:
> > >
> > >
> > > -----Original Message-----
> > > >From: Angelo Sarto <[EMAIL PROTECTED]>
> > > >
> > > >Jumping in a little bit there is still one question I have....
> > > >
> > > >does your integrated device provide no firewall capability?  I mean
if
> > > >the integrate device exposes its only interal IP (.1.2) completely to
> > > >the internet?
> > >
> > > No. The router portion of the ZyXEL exposes only the external IP;
> > > I didn't think any 192.168.x.x addresses could even be seen except on
> > > the LAN side of *any* router (as Alan states).
> > >
> > > >
> > > >If this is the case, or you can place that IP in the dmz, or bridge
> > > >mode may do this as well, then perhaps your answer is simple.
> > > >
> > > >1.  simply purchase an ethernet router - e.g. a dlink or linksys
> device.
> > > >2.  change its wan type to static IP
> > > >3.  assign it's ip to 192.168.1.2
> > > >4.  pretend your other device is just a modem, do all forwarding on
> > > >the new router.
> > >
> > > Alan, I don't see how this is any more "elegant" than what I've been
> doing all along. The Mac is already a true NAT router in and of itself,
not
> a bridge. Its second NIC connects to a hub, and the rest of the LAN uses
> that interface's IP, 192.168.2.1, as the gateway.
> > >
> > > "Elegant" would be eliminating one or the other router and its address
> translation. John's is the elegant solution--change the netmask
> simultaneously with the Size of Client IP pool, and attach the ZyXEL to
the
> hub. This relieves the Mac of its need for a second NIC, reducing rather
> than increasing the hardware involved.
> > >
> > > Thanks to everyone for sharing your knowledge. The only unanswered
> question is how one would talk to the device at all if it became a bridge.
> That one's for ZyXEL.
> >
> > --__--__--
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