How to set up a "double connection"

Two Windows XP laptops accessing the internet through a Wireless
access point then router. 10.0.0.x IP addresses.

From time to time I want to synchronize files across the laptops and
the wireless is slow so I put an ethernet cable between the two and
manually set IP addresses so as to not conflict with the wireless
addresses. However as soon as I plug the cable in I lose internet
access. What am I doing wrong?


--
AnthonyL

AnthonyL <(E-Mail Removed)> wrote:
> Two Windows XP laptops accessing the internet through a Wireless
> access point then router. 10.0.0.x IP addresses.

> From time to time I want to synchronize files across the laptops and
> the wireless is slow so I put an ethernet cable between the two and
> manually set IP addresses so as to not conflict with the wireless
> addresses. However as soon as I plug the cable in I lose internet
> access. What am I doing wrong?

Probably using the same subnet on the wired cable as the wireless. If
you're configured with 10.0.0.x, since you didn't mention the subnet
mask I'll bet that you're actually using 10.x.x.x. So on your wired
network you need to choose another private range such as 192.168.*.x
(pick any one "*", vary the x to differentiate machines).

Chris

On Mon, 13 Jul 2009 08:45:33 -0700, John Navas
<(E-Mail Removed)> wrote:

>On Mon, 13 Jul 2009 11:23:01 GMT, (E-Mail Removed)d (AnthonyL) wrote
>in <(E-Mail Removed)>:
>
>>Two Windows XP laptops accessing the internet through a Wireless
>>access point then router. 10.0.0.x IP addresses.
>>
>>From time to time I want to synchronize files across the laptops and
>>the wireless is slow so I put an ethernet cable between the two and
>>manually set IP addresses so as to not conflict with the wireless
>>addresses. However as soon as I plug the cable in I lose internet
>>access. What am I doing wrong?
>
>Nothing. Windows XP will only route through one network connection at a
>time. Better to cable both machines to the wireless access point or
>router.

It's misleading to say that XP will only route through one network
connection at a time. XP (and most other OS's) can use as many network
connections as you have. Some minor configuration may be required in
some cases.

The PC I'm typing this on has two NICs and XP happily routes traffic
through both at the same time. The PC beside me has 7 NICs and XP also
happily routes traffic through all 7 at the same time. Not to the same
destination, of course, since I'm only using Route statements rather
than any kind of load balancing.

John Navas <(E-Mail Removed)> wrote:
> On Mon, 13 Jul 2009 11:23:01 GMT, (E-Mail Removed)d (AnthonyL) wrote
> in <(E-Mail Removed)>:

> >From time to time I want to synchronize files across the laptops and
> >the wireless is slow so I put an ethernet cable between the two and

> Nothing. Windows XP will only route through one network connection at a
> time. Better to cable both machines to the wireless access point or
> router.

There should only be one default gateway, and it should be on the WiFi
connection.

I have a PC with a wired connection, and a laptop WiFi to the same router.
Both of those connections have a default route to the same router.
I have added a wired connection between the laptop and the router that I
only connect some of the time, for larger data transfers.
I have a second wired connection from the PC to the same router that is
always connected.

The "second" wired connections are on a different subnet, and have no
default gateway.

Laptop
WiFi - dhcp 192.168.22.2 - all default automatic dhcp settings.
Wired - Fixed 192.168.33.2 - no gateway - no DNS.
PC
Wired-1 - dhcp 192.168.22.4 - all default automatic dhcp settings.
Wired-2 - Fixed 192.168.33.4 - no gateway - no DNS.

I can share files, etc, via either IP address.
My "normal" conection is unaffected.
"route print" metric being better for the Wired has no effect because there
is no route looking to the .33. subnet, except for traffic to the other IP
address on the .33 subnet.

--
Clarence A Dold - Hidden Valley Lake, CA, USA GPS: 38.8,-122.5

On Mon, 13 Jul 2009 15:14:26 +0100, Chris Davies
<chris-(E-Mail Removed)> wrote:

>AnthonyL <(E-Mail Removed)> wrote:
>> Two Windows XP laptops accessing the internet through a Wireless
>> access point then router. 10.0.0.x IP addresses.
>
>> From time to time I want to synchronize files across the laptops and
>> the wireless is slow so I put an ethernet cable between the two and
>> manually set IP addresses so as to not conflict with the wireless
>> addresses. However as soon as I plug the cable in I lose internet
>> access. What am I doing wrong?
>
>Probably using the same subnet on the wired cable as the wireless. If
>you're configured with 10.0.0.x, since you didn't mention the subnet
>mask I'll bet that you're actually using 10.x.x.x. So on your wired
>network you need to choose another private range such as 192.168.*.x
>(pick any one "*", vary the x to differentiate machines).
>

Yes that was it. I've set the (alternate configuration)for TCP/IP on
the ethernet connection for both machines to 192.168.1.x. I can now
do fast direct transfers and access the internet via wireless on both
machines. Thanks.


--
AnthonyL