Re: Using XP PC as Gateway, add Wireless router, can't share across su
- From: "Steve Winograd [MVP]" <bc070521m@xxxxxxxxxxx>
- Date: Mon, 21 May 2007 03:41:27 -0600
In article <FA293327-3C19-40D1-919F-74F8DA45AAA6@xxxxxxxxxxxxx>, Jay
<Jay@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Hi All,
I'm using a spare PC running Windows XP Pro configured as a gateway to allow
other computers to access the Internet through this PC. (I set this up using
the Connection Wizard so please don't be too impressed ... ;-)
I did this at my ISP's request to help us troubleshoot a very persistent but
intermitent problem we've been working on for two months. Apparently they can
run better analysis tools on the PC than they can when using my router.
Things have been running pretty good so I added a wireless router to the mix
so I can use my laptops again.
I can now access the internet from all computers using both wired and
wireless connections.
However, the way I have things set up has created two subnets, one on the
Gateway PC and another on the router, and I cannot see or connect to the
other PCs to share files or printers across them.
Here's my hardware setup info:
Using Cable ISP and the cable modem they supplied.
Gateway PC has two NICs.
-- NIC1 is connected to the cable modem
-- NIC2 is connected to a Netgear 16 port switch
Several computers also plugged into the switch.
I then added my USRobotics Wireless router by plugging the WAN port into an
open port on my Netgear switch.
Works well except for not being able to see across the resultant subnets.
Wondering what is involved to allow me to share across the subnets. Some
questions I have are:
-- Can I configure the current setup to allow sharing across the subnets ?
-- Is there a different way to connect the router ? (Tried plugging the
cable in from the switch to one of the router's open LAN ports instead of the
WAN port but no luck. Due to the problem we're trying to resolve, the router
cannot be plugged directly into the cable modem, at least not as a DHCP
server.)
-- Is there a way to configure the router to remove the DHCP server function
and let it pass the DHCP from the Gateway PC ? (I've been trying this and
attempted to put the router on the same subnet as the Gateway PC without
success. The router appears to have this ability but I may not be doing it
correctly.)
-- Although the Gateway PC appears to be set up to use DHCP to assign IP
addresses to the other computers, its own IP address for my internal LAN
appears to be 'Static'. Is that normal ? Where can I go to configure the
DHCP to only use a specific range of IP addresses should this be necessary ?
Sooo, here's a very brief description of the current IP addresses as
assigned to the Gateway PC, my wireless router, and my laptop:
NIC #1 - Uses a DHCP address assigned by my ISP
NIC #2 - Uses a Static address of 192.168.0.1 , 255.255.255.0
Router - Static - 192.168.2.1 , 255.255.255.0
Laptop - DHCP - 192.168.2.4 , 255.255.255.0
Hope I haven't made this too confusing.
Would really appreciate any help as I have spent many hours researching this
and changing things without success.
Thanks.
Jay
You've already come up with a common way to solve the problem: connect
one of the wireless router's LAN ports to the Netgear switch, and
disable the router's DHCP server. That should let the host computer
act as the DHCP server for a single subnet serving both the wired and
wireless computers. But you say that it doesn't work. What problem
happens with that setup?
Another solution, which I use in my home network, is to configure the
wireless router as a wireless access point only. My Belkin Wireless G
router has a "Use as Access Point" option built in. Your USR router
might, too.
Internet Connection Sharing always assigns a static IP address of
192.168.0.1 to the host computer's LAN connection. That's normal.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)
Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.
Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
.
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