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Exchange 2007 ip addresses on nic

Posted on 2011-03-19
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Last Modified: 2012-05-11
I have a clustered exchange setup. I inherited it, ran ipconfig /all and there are 3 ip addresses on the nic. I went into the nic properties, went to advanced and only 1 ip is showing. Where are the other 2 coming from?
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Question by:jbell72
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by:Tribus
ID: 35172408
Are the other 2 the Gateway, DNS...IPv6, or are they actually IP's?

"ipconfig /all" will tell you about all your local NIC cards including wireless NIC's and the gateway and DNS info.
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by:Tribus
ID: 35172413
Could be extra IP's setup also...just starting with the basics...
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Author Comment

by:jbell72
ID: 35173620
What extra ips???  I noted in my question tha I did do an ipconfig /all. These are extra ips. For instance when u do an ipconfig /all ,you see an ip address, a gw, subnet mask and then another ip address, gw, subnet mask and then another set as well. The ips are of the hub transport and mailbox server, but I a just wondering how they get onto the nic. I looked in advanced settings on nic card where u can add additional ips but its not listed there.  I just dont get it. I am asking cause I noticed that these extra ips were there in the beginning then they disappeared and exchange stopped working. I did a reboot and they came back so I am not sure what is goign on and was wondering where the extra ips were being pulled from.
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Author Comment

by:jbell72
ID: 35173636
no not ipv6 either. I cant post it due to security reasons. I just thought with exchange 2007 that it was something I didnt know about maybe and it pulled ip addresses automatically from the mailbox server
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Author Comment

by:jbell72
ID: 35197528
So does anyone know where the othe 2 is are coming from?
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Author Comment

by:jbell72
ID: 35197706
Just FYI, I am not talkign abou the heartbeat. I am talkign aboutthe normal nic settings. I cant for the life of me figure out where the other 2 ip adrees sets are coming from. I know they are the ip address of the mailbox server and also the hubtransport server. We have 2 exchange servers at this location. 1 is a mailbox server and ht/client access server and the other is a hubtransport server . And then we have a virual server  name for the cluster.

All total in DNS ther are 4 ips for Exchange.

Server 1 is mailbox server and Hubtransport
10.1.1.10
10.1.1.12
10.1.1.13  (virtual server name for cluster) this is what people configure there outlook with


All of the above ips were in the ipconfig /all but looking on nic I didnt see all of them just the one main one of 10.1.1.1.2.



Server 2
10.1.1.11
Hubtransport and client access

Anyhow, I dont knwo if DNS is playing a role in this mess, but I am just trying to get clarification of how the nic card shows 3 ips. Again, this is not the heartbeat.
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Author Comment

by:jbell72
ID: 35221997
No one has anything?
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Author Comment

by:jbell72
ID: 35222173
The ip addresses are that of the actual ht server, then the cluster ip and then the ip of the virtual name of the mailbox server. So, these ips show in the nic config when ipconfig/all is typed. But, they have disappeared ad I am wondering how to get them back on the nic w/o going to advanced and actually adding them.
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by:Tribus
ID: 35224774
Just to let you know that people are still looking at this..I have been watching the question but I can't think of why this was happening, so I just backed out.  If I find anything I will be sure to update.
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by:Tribus
ID: 35224777
Have you tried disabling the NIC and re-enabling it.  You could do an ipconfig /release then a ipconfig /renew also...



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Expert Comment

by:Tribus
ID: 35224817
Found this article...thought it was worth mentioning:

http://support.microsoft.com/kb/156772

For the lazy clicker...:

This article describes a method to allow more than one IP address when you are using Windows on a computer with a single network adapter.

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To add additional IP addresses, use Registry Editor to edit the registry.
Go to the following registry section: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\NetTrans\

There should be multiple subkeys with the value 0000, 0001, and so on. If the computer has only one network adapter, click the 0000 entry. You should then see a value named IPAddress and a value named IPMask.

For each additional IP address, add to the two values.

The IPAddress value should contain the current IP addresses. This value is a string of IP addresses separated by commas with no embedded spaces. The IPMask value should be a list of comma-separated subnet masks with no embedded spaces. You must add a mask value for each IPAddress.

When you are done, quit Registry Editor and then restart the computer.
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Author Comment

by:jbell72
ID: 35231566
I rebooted a server for the 10th time and the ips reappeared. Teh ips are of the other servers, just not sure how they apper on the nic config when I do n ipconfig/all. MAybe it is just designed that way. Not sure why after several reboots they reappeared.
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Assisted Solution

by:jbell72
jbell72 earned 0 total points
ID: 35505203
IS till am not sure how the ips are liste din the ipcongig /all page.
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Accepted Solution

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jbell72 earned 0 total points
ID: 35889556
The extra ip is from the cluster that comes online.
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Author Closing Comment

by:jbell72
ID: 35913713
Answer was really not given
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