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new routes add dinamically

Posted on 2006-05-08
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Last Modified: 2013-12-23
Hello.

I have a typically configuration in a w2k3 server:
IP addr: 10.1.1.254
netmask: 255.255.255.0
gw: 10.1.1.5

In the network are two routers 10.1.1.1 and 10.1.1.5, the first one was the old gateway for the w2k3 server.

Now, if i make a telnet 10.16.1.15 the system add a new entry in the table route with the gw as 10.1.1.1

route print:
Active Routes:
Network Destination        Netmask                   Gateway               Interface        Metric
0.0.0.0                          0.0.0.0                      10.1.1.5               10.1.1.254      10
10.16.1.15                     255.255.255.255        10.1.1.1              10.1.1.254       1
10.1.1.0                        255.255.255.0            10.1.1.254           10.1.1.254     10
10.1.1.254                     255.255.255.255        127.0.0.1            127.0.0.1         10
10.255.255.255              255.255.255.255        10.1.1.254           10.1.1.254     10
127.0.0.0                       255.0.0.0                   127.0.0.1            127.0.0.1          1
Default Gateway:        10.1.1.5
===========================================================================
Persistent Routes:
  None

I delete this route, but windows add it over and over
Why does it happen?

Thanks and sorry for my poor english.
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Question by:itacyl
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Expert Comment

by:kfullarton
ID: 16631050
After you delete the route, does Windows add it back to the route table immediately?  If not, when does it re-appear?
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Author Comment

by:itacyl
ID: 16631572
the route appear (or re-appear) when i try to connect to 10.16.1.15. There are more routers than appears dinamically. For example, if I ping 10.16.8.9 appears this route:
10.16.8.9  255.255.255.255       10.47.1.1     10.47.20.254      1

But, if i ping 10.1.7.140 the w2k3 server send the packet to the correct gateway, and don't add a new entry.

any ideas??
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Author Comment

by:itacyl
ID: 16631792
Sorry, in my last post the correct  route is:
10.16.8.9  255.255.255.255       10.1.1.1     10.47.20.254      1

And not
10.16.8.9  255.255.255.255       10.47.1.1     10.47.20.254      1
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Author Comment

by:itacyl
ID: 16665671
Hello

I've found the solution.

The router 10.47.20.5 send a ICMP-REDIRECT to the w2k3Server with the new gateway 10.47.20.1

So, the problem is not in the w2k3server, it is in the router.

Thanks for all
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