My home wireless lan is a mess right now.  I'm looking for help in
setting it up in the most efficient manner possible.  Here is my
current list of hardware.

3com cable modem
Microsoft wireless G router/access point
Vonage voip console (this can sit behind a firewall)
1 pc w/ microsoft wireless G usb access
1 dell laptop w/ wireless g access
1 pc w/ belkin wireless b usb access
1 dell axim x30 with wireless access (not sure if B or G)

I absolutely despise hardware firewalls as they're a pain (for me)to
set up for specific applications to have full access to the internet.

My question would be, is there any way to allow more than one ip to be
in the dmz?  The microsoft router allows only one.  I would rather
rely on software firewalls on each pc than one hardware firewall for
all.  Could I have my main pc in the dmz and have each device "go
through" that pc for internet access and configure them on the main pc
somehow?  If that's not possible then please suggest the best setup
with the current hardware and the benefits of such a setup.
Thanks!

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Clarification of Question by kdog2678-ga on 12 Jan 2005 00:00 PST

I tried your suggestion with no success.  I could access the router
(access point) setup page, and I had a valid ip.  I tried to ping the
dns server with no response.  How would NAT work with the setup you
suggested?

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Clarification of Question by kdog2678-ga on 12 Jan 2005 12:46 PST

wiresnips-ga - Just to clarify, if I have an application setup to use
port 10555 and set that port in the router to a specific ip within my
subnet it will work for that single pc.  Then, if I set up that
application on a different pc and change the port settings to 11555
(withing the app) and set that port to the new pc within my router,
then both applications will work simultaniously?

If this is correct (or if it's not), please let me know and I will
happily submit payment.

Thanks-

If you put the microsoft router into bridge mode, it will no longer
act as a router and mess with any port trafic.  No essentially you
have an access point only, i think you should then be able to
statically set your IP's so that the gateway for each computer is the
3com cable modem local IP, and the DNS servers are your ISP's server
(look at what it is in your router's status tab before changing to
bridge to get these IP's).  make sure all the ip's are in the same
scope so go from 192.168.1.100 on up.  Also make sure your Access
point and your modem dont have the same local IP which can sometimes
happen.  Our standard is setting router's IP to x.x.x.250-254

Hope this makes sense let me know if ya run into trouble.

The router/AP you have isn't a very sophisticated device here, so
let's go over the ground rules.  This router takes on one, and ONLY
ONE, external IP address.  All external traffic is sent from this one
IP.  The router merely keeps a list of the internal IPs and the
associated ports and the external ports it has chosen to use for each
outward connection.  You can only have one PC in the DMZ because this
unshielded PC does not have that layer of port translation.  You can
have only one because two PCs running the same application cannot
share both the same external IP AND the same external port number. 
Pick a computer that is running whatever "specific applications" you
have and place it in the DMZ.  The rest will just have to reside
behind the router until the day you pay for a multiple IP lease and
replace your router with a switching hub.