Re: Unable to configure internet conn sharing using SMC switch

From: Steve Winograd [MVP] (winograd_at_pobox.com)
Date: 08/16/04 

Date: Mon, 16 Aug 2004 02:52:59 -0600

In article <2BCCC012-F3C9-405F-8C1C-67DC83580870@microsoft.com>,
"bjatcox" <bjatcox@discussions.microsoft.com> wrote:
>Hello all.
> I have a WinXP Pro computer that has a wireless connection to a router/modem
>setup for internet connection. Now, I would like to hook this PC via a NIC
>to a SMC print server and switch so that I can have a home network and share
>printers,
>internet etc. One of the ports on the SMC switch is connected via ethernet
>cable
>to the NIC which is manually configured to 192.168.0.1. I have a linux box
>which connects to another port of the SMC switch and has fixed IP of
>192.168.0.2. Both
>XP and linux box can see each other and even Samba works. However, I am
>unable to connect to the internet from the linux box. What is it that I need
>to do?
>My SMC switch is actually a wireless access point also but I don't want to
>use it for wireless access - I want to use it as a router/switch/print
>server. I have read a lot of posts on this newsgroup but could not fix my
>problem.
>My ipconfig /all is below. I would appreciate any help.
>
>Thanks,
>Jayaram
>
>Windows IP Configuration
>
> Host Name . . . . . . . . . . . . : indra
> Primary Dns Suffix . . . . . . . :
> Node Type . . . . . . . . . . . . : Hybrid
> IP Routing Enabled. . . . . . . . : Yes
> WINS Proxy Enabled. . . . . . . . : No
>
>Ethernet adapter Local Area Connection:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : Broadcom 440x 10/100 Integrated
>Controller
> Physical Address. . . . . . . . . : 00-0D-56-10-68-B3
> Dhcp Enabled. . . . . . . . . . . : No
> IP Address. . . . . . . . . . . . : 192.168.0.1
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Default Gateway . . . . . . . . . : 192.168.1.1
> DNS Servers . . . . . . . . . . . : 68.2.16.25
> 68.2.16.30
>
>Ethernet adapter Wireless Network Connection:
>
> Connection-specific DNS Suffix . :
> Description . . . . . . . . . . . : NETGEAR WG311v2 802.11g Wireless
>PCI Adapter
> Physical Address. . . . . . . . . : 00-09-5B-BB-1F-81
> Dhcp Enabled. . . . . . . . . . . : Yes
> Autoconfiguration Enabled . . . . : Yes
> IP Address. . . . . . . . . . . . : 192.168.1.101
> Subnet Mask . . . . . . . . . . . : 255.255.255.0
> Default Gateway . . . . . . . . . :
> DHCP Server . . . . . . . . . . . : 192.168.1.1
> DNS Servers . . . . . . . . . . . : 68.2.16.25
> 68.2.16.30
> 68.6.16.30

The best setup might not involve Internet Connection Sharing at all.
More on that after I make some suggestions on how to get ICS to work.

The Local Area Connection shouldn't have a Default Gateway or DNS
Server address associated with it -- only the Wireless Network
Connection should. I suspect that you configured the Local Area
Connection manually, since ICS wouldn't normally make those settings.
In any case, I recommend un-sharing and then re-sharing the Wireless
Network Connection, and not making any manual settings.

Make sure that the SMC router/AP/switch is only functioning as a
switch. Connect the other computers to its LAN ports, not to its WAN
(Internet) port. Disable its built-in DHCP server. Turn off its
wireless transmitter if possible.

Make these settings on the Linux box:

   IP Address: 192.168.0.x (1<x<255)
   Subnet Mask: 255.255.255.0
   Default Gateway: 192.168.0.1
   DNS Server = 192.168.0.1 or your ISP's DNS server

Now, for the other possible setup: disable ICS and create a network
bridge between the Local Area Connection and the Wireless Network
Connection. I've written a web page with details:

XP ICS - Network Bridge
http://www.practicallynetworked.com/sharing/xp_ics/networkbridge.htm

If that doesn't work right away, see this article for a possible
solution:

Bridge May Not Work With a Non-Promiscuous Mode Network Adapter
http://support.microsoft.com/?id=302348 

-- 
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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