Routing metrics

[noqued]

Hi there. Does anyone know if a value of '1' for the metric on static
routes has a special meaning? I've configured two machines (R-2 and
R-3) running win server 2003 with routing and ras enabled. They are
both connected to a third router (R-3) which has two static routes for
the 'network b' through them. Something like this:

[R-3]
-----------|----------- 'network a'
| |
[R-2] [R-3]
| |
----------------------- 'network b'
| |
[Client] [Client]

If I set, for example, a value of '1' in the metric for the route
through R-2 and '2' for the route through R-3, and I shutdown R-2, a
ping running on the clients stops responding. And yes, both clients
have R-2 AND R-3 as default gateways, so the ping should recover and
start going through R-3. If I use '10' and '20' as metrics instead, it
works as expected.

I know this configuration is quite quirky, but it's just a test, I just
wanted to know if a metric of '1' has a special meaning.

Thanks in advance and sorry for my english.

 

[Robert L [MS-MVP]]

basically, lower # is the primary gateway or you are using. For example, if R-1 is metric 1 and R-2 is 2, you are using R-1.

Now, if you have two gateways setup on one computer and the computer always uses R-1 even it is don't work because the computer doesn't know that.

Bob Lin, MS-MVP, MCSE & CNE
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.
Don't send e-mail or reply to me except you need consulting services. Posting on MS newsgroup will benefit all readers and you may get more help.
Hi there. Does anyone know if a value of '1' for the metric on static
routes has a special meaning? I've configured two machines (R-2 and
R-3) running win server 2003 with routing and ras enabled. They are
both connected to a third router (R-3) which has two static routes for
the 'network b' through them. Something like this:

[R-3]
-----------|----------- 'network a'
| |
[R-2] [R-3]
| |
----------------------- 'network b'
| |
[Client] [Client]

If I set, for example, a value of '1' in the metric for the route
through R-2 and '2' for the route through R-3, and I shutdown R-2, a
ping running on the clients stops responding. And yes, both clients
have R-2 AND R-3 as default gateways, so the ping should recover and
start going through R-3. If I use '10' and '20' as metrics instead, it
works as expected.

I know this configuration is quite quirky, but it's just a test, I just
wanted to know if a metric of '1' has a special meaning.

Thanks in advance and sorry for my english.

 

[Phillip Windell]

Don't worry about the metrics, leave them at "1". what you are doing
(trying to do) is called Dead Gateway Detection.


128978 - Dead Gateway Detection in TCP/IP for Windows NT
http://support.microsoft.com/default.aspx?scid=kb;EN-US;128978

171564 - TCP/IP Dead Gateway Detection Algorithm Updated for Windows NT
http://support.microsoft.com/default.aspx?scid=kb;EN-US;171564


--
Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com
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