"Steve Winograd [MVP]" wrote:

> In article <75C59F65-89F5-44D9-89C0-728D5CE09***@microsoft.com>,
> Joachim <Joac***@discussions.microsoft.com> wrote:
> >What rules are there that decides which network adapter (assuming I have
> >several network adapters on my PC) network information uses to send
> >information on a Windows XP Pro PC?
>
> I assume that the computer uses the TCP/IP protocol on the network.
>
> Windows XP creates a network connection for each installed network
> adapter.  It decides which connection to use by looking up the
> destination IP address in the TCP/IP route table, which defines the
> range of IP addresses that each connection can access.
>
> When multiple connections can access the same destination, XP uses the
> connection with the lowest metric value.  By default, XP assigns a
> metric value based on the rated speed of a connection:
>
> An explanation of the Automatic Metric feature for Internet Protocol
> routes
> http://support.microsoft.com/Default.aspx?id=299540
>
> If automatic metrics don't do what you want, you can assign them
> manually.  To assign a metric to a network connection:
>
> 1. Open the Network Connections folder.
> 2. Right click the desired connection.
> 3. Click Properties | Internet Protocol (TCP/IP).
> 4. Click Properties | Advanced.
> 5. Un-check "Automatic metric".
> 6. Enter a number between 1 and 9999 for the "Interface metric".
> --
> 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
>

>> >What rules are there that decides which network adapter (assuming I have
>> >several network adapters on my PC) network information uses to send
>> >information on a Windows XP Pro PC?
>>
>> I assume that the computer uses the TCP/IP protocol on the network.
>>
>> Windows XP creates a network connection for each installed network
>> adapter.  It decides which connection to use by looking up the
>> destination IP address in the TCP/IP route table, which defines the
>> range of IP addresses that each connection can access.
>>
>> When multiple connections can access the same destination, XP uses the
>> connection with the lowest metric value.  By default, XP assigns a
>> metric value based on the rated speed of a connection:
>>
>> An explanation of the Automatic Metric feature for Internet Protocol
>> routes
>> http://support.microsoft.com/Default.aspx?id=299540
>>
>> If automatic metrics don't do what you want, you can assign them
>> manually.  To assign a metric to a network connection:
>>
>> 1. Open the Network Connections folder.
>> 2. Right click the desired connection.
>> 3. Click Properties | Internet Protocol (TCP/IP).
>> 4. Click Properties | Advanced.
>> 5. Un-check "Automatic metric".
>> 6. Enter a number between 1 and 9999 for the "Interface metric".
>
>Thank you Steve,
>
>Lets say I set a lower metric on one adapter and a higher one on another.
>Will then an application try the adapter with the higher metric if it cannot
>find a host using the adapter with the lower metric?