IP Conflict with Alltel wireless card and router

I bought a Alltel wireless card for my home system since I live in a
rural area without cable. My home network has 5 PC's and a Satellite
receiver with a 4 port D-Link wireless router.
When I connected the Alltel wireless USB card and setup ICS (Internet
Connection Sharing), it automatically assigned 192.168.0.1 to my PC's
other NIC. That conflicted with my wireless router so I changed the
router IP to 192.168.0.2.
All the PC's that connect by cable to my router ports can now see the
internet with no problems.
I have three wireless connections that are too far away to run copper
and when they connect via DHCP the router gives them 192.168.0.2 for
their default gateway. That makes them unable to see the ICS and the
internet.
I was able to manually add another route for the wireless PC's but the
satellite box is DHCP only and I cannot change what it receives from the
router. Every time it connects it gets a 192.168.0.2 gateway address
and cannot see the internet and so I cannot download movies or connect
for PPV events.

On Wed, 2 Jul 2008 20:18:41 -0500, psteege
<psteege.3bz9vh@no.email.invalid> wrote:

>
>I bought a Alltel wireless card for my home system since I live in a
>rural area without cable. My home network has 5 PC's and a Satellite
>receiver with a 4 port D-Link wireless router.
>When I connected the Alltel wireless USB card and setup ICS (Internet
>Connection Sharing), it automatically assigned 192.168.0.1 to my PC's
>other NIC. That conflicted with my wireless router so I changed the
>router IP to 192.168.0.2.
>All the PC's that connect by cable to my router ports can now see the
>internet with no problems.
>I have three wireless connections that are too far away to run copper
>and when they connect via DHCP the router gives them 192.168.0.2 for
>their default gateway. That makes them unable to see the ICS and the
>internet.
>I was able to manually add another route for the wireless PC's but the
>satellite box is DHCP only and I cannot change what it receives from the
>router. Every time it connects it gets a 192.168.0.2 gateway address
>and cannot see the internet and so I cannot download movies or connect
>for PPV events.

There are two DHCP servers on the network: the ICS host, and the
router. Disable the router's built-in DHCP server.
--
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

Hi
It does not make sense. Form Routing and ICS perspective there should not be
a difference between wire or wireless computers connected to the same
Router.
If the wire works the wireless should work too.
You probably connoting something incorrectly.
Jack (MVP-Networking).

"psteege" <psteege.3bz9vh@no.email.invalid> wrote in message
newssteege.3bz9vh@no.email.invalid...
>
> I bought a Alltel wireless card for my home system since I live in a
> rural area without cable. My home network has 5 PC's and a Satellite
> receiver with a 4 port D-Link wireless router.
> When I connected the Alltel wireless USB card and setup ICS (Internet
> Connection Sharing), it automatically assigned 192.168.0.1 to my PC's
> other NIC. That conflicted with my wireless router so I changed the
> router IP to 192.168.0.2.
> All the PC's that connect by cable to my router ports can now see the
> internet with no problems.
> I have three wireless connections that are too far away to run copper
> and when they connect via DHCP the router gives them 192.168.0.2 for
> their default gateway. That makes them unable to see the ICS and the
> internet.
> I was able to manually add another route for the wireless PC's but the
> satellite box is DHCP only and I cannot change what it receives from the
> router. Every time it connects it gets a 192.168.0.2 gateway address
> and cannot see the internet and so I cannot download movies or connect
> for PPV events.
>
>

1. ICS does not do DHCP serving. The router is the only DHCP server in
the network. I can't turn off DHCP because that is all the satellite
box uses.

2. Wired or wireless is different in that the wired connections are
all static IP's where I set the default gateway. The wirless get the
default gateway from the DHCP service in the router and he is set to
X.X.0.2 and that is what he broadcasts as a default gateway.

On Fri, 4 Jul 2008 13:23:01 -0500, psteege
<psteege.3c26b3@no.email.invalid> wrote:
>>>I bought a Alltel wireless card for my home system since I live in a
>>>rural area without cable. My home network has 5 PC's and a Satellite
>>>receiver with a 4 port D-Link wireless router.
>>>When I connected the Alltel wireless USB card and setup ICS (Internet
>>>Connection Sharing), it automatically assigned 192.168.0.1 to my PC's
>>>other NIC. That conflicted with my wireless router so I changed the
>>>router IP to 192.168.0.2.
>>>All the PC's that connect by cable to my router ports can now see the
>>>internet with no problems.
>>>I have three wireless connections that are too far away to run copper
>>>and when they connect via DHCP the router gives them 192.168.0.2 for
>>>their default gateway. That makes them unable to see the ICS and the
>>>internet.
>>>I was able to manually add another route for the wireless PC's but the
>>>satellite box is DHCP only and I cannot change what it receives from the
>>>router. Every time it connects it gets a 192.168.0.2 gateway address
>>>and cannot see the internet and so I cannot download movies or connect
>>>for PPV events.
>>
>>There are two DHCP servers on the network: the ICS host, and the
>>router. Disable the router's built-in DHCP server.
>
>1. ICS does not do DHCP serving. The router is the only DHCP server in
>the network.

Yes, ICS does do DHCP serving. I've written a web site about how ICS
works:

Windows XP Internet Connection Sharing
http://www.practicallynetworked.com/sharing/xp_ics/

>I can't turn off DHCP because that is all the satellite box uses.

Why not? Does the satellite box get its DHCP settings from the
router? I would think that the satellite receiver gets its DHCP
settings from your satellite Internet service provider, not from the
router. If that's the case, you can turn off DHCP in the router.

>2. Wired or wireless is different in that the wired connections are
>all static IP's where I set the default gateway. The wirless get the
>default gateway from the DHCP service in the router and he is set to
>X.X.0.2 and that is what he broadcasts as a default gateway.

What IP address do you specify as the default gateway for the wired
computers?

If I understand your setup:

1. The router is NOT the default gateway in your network.

2. The ICS host computer is the default gateway, and the other
computers must have the ICS host computer's LAN IP address
(192.168.0.1) as their default gateway.

If that isn't right, please describe exactly how you've set up the
network. Specifically:

1. Describe how you've connected the satellite box. Is it connected
to the router? If so, is it connected to the WAN port or to a LAN
port?

2. Why have you added a wireless card and enabled ICS on the host
computer? Can't the wireless router, by itself, do the DHCP serving
and Internet sharing for your network?
--
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

Steve

I apologize if I keep repeating myself, but I want to make sure
everyone understands my network.

You are correct.
1. The router is NOT my gateway, a Alltel USB mode is my gateway.
2. I bought a Alltel USB wireless because it was faster than my
Wildblue satellite internet provider. My only link to the internet is
through the Alltel device. In that same PC I have another Intel Pro/100
NIC and that is wired directly to my D-Link 514 router.
The router is a 4 port wireless router and I don't have anything
connected to the WAN port, I hardwired into all 4 ports.
I have 5 computers, a DishNetwork satellite TV box, and an Xbox
connected on my network.
Three PC's and the satellite receiver are hardwire into the router.
Two other PC's and the Xbox are using static DHCP IP's from the router.

When I setup ICS on the PC with the Alltel USB modem it forced the
Intel Pro/100 card to X.X.0.1 and that caused an IP conflict with my
router's default IP so I changed the router to X.X.0.2. That made the
internet accessible to all my network boxes EXCEPT ones getting DHCP
addresses. Anyone getting DHCP IP from the router were also give
X.X.0.2 as the default gateway.
On the PC's connected by wireless it was easy to add a default route
for X.X.0.1 but on the satellite receiver I cannot find any setting that
allows manual addition of routes or gateway.

The issue with the satellite is that I cannot access PayPerView with
DishNetwork if I cannot connect the receiver to the internet. I only
have wireless phones in my home so the internet is the only way I can
connect to DishNetwork.
I hope this explains my situation.

Thanks for your patience and replies.

Regards,
psteege

On Sat, 5 Jul 2008 11:45:39 -0500, psteege
<psteege.3c3tyg@no.email.invalid> wrote:
>Steve
>
>I apologize if I keep repeating myself, but I want to make sure
>everyone understands my network.
>
>You are correct.
>1. The router is NOT my gateway, a Alltel USB mode is my gateway.
>2. I bought a Alltel USB wireless because it was faster than my
>Wildblue satellite internet provider. My only link to the internet is
>through the Alltel device. In that same PC I have another Intel Pro/100
>NIC and that is wired directly to my D-Link 514 router.
>The router is a 4 port wireless router and I don't have anything
>connected to the WAN port, I hardwired into all 4 ports.
>I have 5 computers, a DishNetwork satellite TV box, and an Xbox
>connected on my network.
>Three PC's and the satellite receiver are hardwire into the router.
>Two other PC's and the Xbox are using static DHCP IP's from the router.
>
>When I setup ICS on the PC with the Alltel USB modem it forced the
>Intel Pro/100 card to X.X.0.1 and that caused an IP conflict with my
>router's default IP so I changed the router to X.X.0.2. That made the
>internet accessible to all my network boxes EXCEPT ones getting DHCP
>addresses. Anyone getting DHCP IP from the router were also give
>X.X.0.2 as the default gateway.
>On the PC's connected by wireless it was easy to add a default route
>for X.X.0.1 but on the satellite receiver I cannot find any setting that
>allows manual addition of routes or gateway.
>
>The issue with the satellite is that I cannot access PayPerView with
>DishNetwork if I cannot connect the receiver to the internet. I only
>have wireless phones in my home so the internet is the only way I can
>connect to DishNetwork.
>I hope this explains my situation.
>
>Thanks for your patience and replies.
>
>Regards,
>psteege

Thanks for your explanation. I think that I understand your setup and
can help you get everything to work:

1. The Alltel USB wireless modem gets its DHCP setup from your
wireless Internet provider.

2. You're using ICS to share the Alltel's Internet connection with the
other devices on your network. The ICS computer is the gateway to the
Internet, through its LAN IP address of 192.168.0.1.

3. You're using your wireless router as a network switch and wireless
access point. There's nothing connected to its WAN port, and you're
not using its routing capabilities.

In that case, you must disable the router's DHCP server, so that the
ICS computer, through its LAN connection, acts as the DHCP server for
your network.
--
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

Steve
You are correct in my network description.
I did what you suggested....disabled DHCP in my router. I could not
get a DHCP lease.
I looked at the services in my XP box (the one that is doing the
sharing) and I only see dhcp client running. I don't see any other dhcp
service. It doesn't appear to me that ICS is providing dhcp addresses.
All my other PC's (wired ones) could still get out to the internet, but
the wireless boxes could not until I enabled DHCP in the router.

On Sun, 6 Jul 2008 11:58:32 -0500, psteege
<psteege.3c6cnp@no.email.invalid> wrote:

>>Steve
>You are correct in my network description.
>I did what you suggested....disabled DHCP in my router. I could not
>get a DHCP lease.
>I looked at the services in my XP box (the one that is doing the
>sharing) and I only see dhcp client running. I don't see any other dhcp
>service. It doesn't appear to me that ICS is providing dhcp addresses.
>All my other PC's (wired ones) could still get out to the internet, but
>the wireless boxes could not until I enabled DHCP in the router.

There won't be any other DHCP services running on the XP box. ICS
acts as a DHCP server without installing any additional services.

The only thing I know of which would disable the ICS DHCP server is
manually changing the LAN connection's IP address and subnet mask from
192.168.0.1/255.255.255.0 to something else.

Disable ICS, then re-enable it and see if that fixes the problem. If
it doesn't, it's possible that your router is blocking DHCP traffic
between the ICS computer and the wireless computers.

Configure one of the wired computers to use DHCP, and see if it gets
its configuration from the ICS computer.

See if your router has a setting that configures it as a wireless
access point, disabling its routing functions.

You could connect the ICS computer to the router's WAN port and
configure the router to use a different subnet than 192.168.0.x. That
would give Internet access to the wired and wireless computers, using
the router as the DHCP server and gateway. However, the ICS computer
wouldn't be able to share files and printers with the other computers
unless you installed another NIC in it to connect to one of the
router's LAN ports.
--
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

Steve
It is working now and here is what I did.
I re-ran the Network Wizard for ICS. Then I installed a crossover
cable between my XP box and my router WAN port and did a DHCP release
and renew in the router for a Dynamic IP. That made the router get an
IP from the ICS which was in the 192.168.X.X range.
Then I moved the cable from the WAN port to port 1 on the router. I
turned off the DHCP server in the router and restarted all my PC's, and
satellite boxes and renewed their DHCP.
ICS gave them all addresses and also gave the a gateway address of
192.168.0.1, including the satellite box. That allowed it to see the
internet, and all the PC's see the internet.

Thank you for walking me through this problem and for your patience
with my skepticism of ICS being a DHCP address provider. I learned a
lot from this network experience.
Best regards,