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Multihoming Windows NT Servers

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Mick Brooke

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Apr 30, 1997, 3:00:00 AM4/30/97

We have two Windows NT 3.51 servers which are connected to the
same domain on the same LAN. One is a PDC and the other a BDC.

One server is used for development of an information system while
the other is the live machine. Hence, on occasion, files which
have been developed on one server have to be copied to the other.

Given the size of the files, copying from one server to the other
creates an unwelcome burden on the LAN, so in order to alleviate
the problem, we have added a second network card to each server
and connected them using a crossover UTP cable.

The only protocol we are using is TCP/IP. We are using WINS for
name resolution, but have tried limiting name resolution on the
respective servers only to LMHOSTS.

We cannot find any way of forcing the first server to communicate
with the second server through a specific network card. IP
routing is not enabled.

Has anyone any idea how we can achieve our aim? If you need any
more information, please do not hesitate to ask.

Thanks.

thong minh do

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May 2, 1997, 3:00:00 AM5/2/97

to Mick Brooke

First make sure the crossoverr cable.

Most crossover cable that I bought is a reverse cable, therefore it is
not going to work.
Try to use 1 2 3 6 on one side and cross the wire as 2 1 6 3 on the
other end.
Next makesure, you install "MS client network", "computer browser" and
NetBui.

Good Luck.
Thong Do

Stephan Wolf

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May 5, 1997, 3:00:00 AM5/5/97

On Fri, 02 May 1997 12:12:39 -0400, thong minh do <do...@osu.edu>
wrote:

> Try to use 1 2 3 6 on one side and cross the wire as 2 1 6 3 on the
>other end.

If you are talking about Ethernet or Fast Ethernet, then a TP
crossover cable (RJ-45) looks like this:

TX+ 1 <-> 3 RX+
TX- 2 <-> 6 RX-

i.e.

TX+ 1 =======\ /= 1 TX+
TX- 2 =\ /==X== 2 TX-
RX+ 3 ==\=/==/ \= 3 RX+
4 - X - 4
5 - / \ - 5
RX- 6 =/ \===== 6 RX-
7 - - 7
8 - - 8

> Next makesure, you install "MS client network", "computer browser" and
>NetBui.

Since the original poster said that the only protocol they are using
in their normal LAN is TCP/IP, using NetBEUI for the LAN between the
two servers should work. On the other hand, a unique IP network
address for the LAN between the servers should also work (e.g.
192.9.200). Note that no gateway should be specified for the server
LAN.

(...hate posting to multiple newsgroups at a time.)

Stephan Wolf <sw...@syskonnect.de> http://www.syskonnect.de
SysKonnect - The Server Connectivity Company

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