Re: Question Servers with 2 Nics and Lan/Internet

Ouch. I was hoping that wasn't the case. Oh well...

Thanks for the input!

Matthew Hanna

Ace Fekay [MVP] wrote:
In news:1165352724.869005.61470@xxxxxxxxxxxxxxxxxxxxxxxxxxxx,
irtheman <irtheman@xxxxxxxxx> stated, which I commented on below:
Hello!

My plan is to enable the 1000Mbps nics on our servers and a few of the
workstations, all of which are currently only using their 100 Mbps
nics, and connect each to a new gigabit switch. I believe I should
give those nics a different ip address (in the range of 192.168.10.1 -
192.168.10.8) other than that which is currently used on our network
(192.168.100.50 - 192.168.100.200) but without a default gateway
configured. I don't think it is necessary to do anything more than
this. Is that the correct approach to this?

In detail, I want to use both nics in our servers the way I am sure
they were intended to be used: 100Mbps connecting to the internet and
1000Mbps connected to the internal nework. I am not really sure how
this is going to work yet though which is why I am here. The higher
ups think I should do this with our servers and a few workstations
first so they can determine its cost effectiveness. At present my
company has disabled the 1000Mbps nics in our servers and is using the
100Mbps ports to connect to the a bank of 100Mbps switches that form
our internal network and all of this works fine but we need more
speed. I have convinced my company to upgrade the internal network
including all of the company PCs to 1Gbit in a couple of months.
It'll be fun and well worth the effort but they want a proof of
concept of sorts starting with our 4 servers and 4 of our busiest
workstations. I have ordered a 1 Gbit switch with 8 ports and
verified that the 4 servers and 4 workstations have both types of
nics installed. All 4 of the servers have both 100 and 1000 Mbps
nics installed and are running Windows 2003 (the dc is running
actually running SBS 2003). The 4 workstations are running XP Pro.
I am thinking I need to enable the gigabit nics, assign them ip
addresses outside of the range of IPs currently used, and be careful
not to configure a default gateway. Is this enough? Is it correct?

Thanks!
Matthew Hanna

I agree with Bill. To elaborate, it comes down to controlling DNS
registration of the NIC you do not want to register. Yes, you must control
that. It's a series of steps and registry entries that alters default DC
behavior. Honestly, multihomed DCs are very problematic and I guarantee will
cause problems. I have a series of steps (numerous) I can post to perform on
each multihomed DC, but I highly recommend only use one NIC and let your
infrastructure route traffic accordingly.

--
Ace
Innovative IT Concepts, Inc (IITCI)
Willow Grove, PA

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft MVP - Directory Services
Microsoft Certified Trainer

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