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Windows 2008R2 netwwork problem

 
 
ErickL
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      08-28-2009, 05:15 PM
I have a Dell PowerEdge 2950 with Win2008R2 as a testbed for Hyper-V. The
box has a dual Broadcom NIC with one side as the management interface with
public IP and the other as a Hyper-V external network for the VMs to use.
The machine also has a dual Intel Pro1000 PT for iSCSI connections. The
setup is identical to the Win2008 box that is currently running Hyper-V VMs.
The machine is in AD and the management NIC shows it as being in a Domain
Network. The Hyper-V network card does not appear in the network config
because it is exclusive for Hyper-V - fine, it works. The private network
NICs with 10.x.x.x IPs appear as a Public Network (apparently MS name for a
private network ;- ) with no network access. The private network is
10.x.x.x/25 with GW of 10.x.x.1 and the public network is y.y.y.y/25 with GW
of y.y.y.1. So management NIC is a.b.c.d mask 255.255.255.128 gw a.b.c.1
iSCSI NICs are 10.b.c.d and 10.b.c.e mask 255.0.0.0 no GW. Setting GW on
management NIC creates persistent route 0.0.0.0 mask 0.0.0.0 GW a.b.c.1 as
it does in 2008 (per route print.) I'm stumped - any clues?

Erick

 
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Phillip Windell
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      08-28-2009, 06:16 PM
"ErickL" <(E-Mail Removed)> wrote in message
news:92FB6D41-B0FC-4DB4-911E-(E-Mail Removed)...
>I have a Dell PowerEdge 2950 with Win2008R2 as a testbed for Hyper-V. The
>box has a dual Broadcom NIC with one side as the management interface with
>public IP and the other as a Hyper-V external network for the VMs to use.
>The machine also has a dual Intel Pro1000 PT for iSCSI connections. The
>setup is identical to the Win2008 box that is currently running Hyper-V
>VMs. The machine is in AD and the management NIC shows it as being in a
>Domain Network. The Hyper-V network card does not appear in the network
>config because it is exclusive for Hyper-V - fine, it works. The private
>network NICs with 10.x.x.x IPs appear as a Public Network (apparently MS
>name for a private network ;- ) with no network access. The private network
>is 10.x.x.x/25 with GW of 10.x.x.1 and the public network is y.y.y.y/25
>with GW of y.y.y.1. So management NIC is a.b.c.d mask 255.255.255.128 gw
>a.b.c.1 iSCSI NICs are 10.b.c.d and 10.b.c.e mask 255.0.0.0 no GW. Setting
>GW on management NIC creates persistent route 0.0.0.0 mask 0.0.0.0 GW
>a.b.c.1 as it does in 2008 (per route print.) I'm stumped - any clues?


1. You put a Default Gateway on only one nic

2. If a particular nic is dedicated to only the use the VMs than it does not
need any TCP/IP Specs at all. It does not even need TCP/IP or anything else
bound to the adapter.


 
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Erick Larson
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      08-28-2009, 08:05 PM

1. Correct - only the management NIC has a default GW set on it. Verified.

2. Correct - the Hyper-V has no settings. Verified.

"Phillip Windell" <(E-Mail Removed)> wrote in message
news:#(E-Mail Removed)...
> "ErickL" <(E-Mail Removed)> wrote in message
> news:92FB6D41-B0FC-4DB4-911E-(E-Mail Removed)...
>>I have a Dell PowerEdge 2950 with Win2008R2 as a testbed for Hyper-V. The
>>box has a dual Broadcom NIC with one side as the management interface with
>>public IP and the other as a Hyper-V external network for the VMs to use.
>>The machine also has a dual Intel Pro1000 PT for iSCSI connections. The
>>setup is identical to the Win2008 box that is currently running Hyper-V
>>VMs. The machine is in AD and the management NIC shows it as being in a
>>Domain Network. The Hyper-V network card does not appear in the network
>>config because it is exclusive for Hyper-V - fine, it works. The private
>>network NICs with 10.x.x.x IPs appear as a Public Network (apparently MS
>>name for a private network ;- ) with no network access. The private
>>network is 10.x.x.x/25 with GW of 10.x.x.1 and the public network is
>>y.y.y.y/25 with GW of y.y.y.1. So management NIC is a.b.c.d mask
>>255.255.255.128 gw a.b.c.1 iSCSI NICs are 10.b.c.d and 10.b.c.e mask
>>255.0.0.0 no GW. Setting GW on management NIC creates persistent route
>>0.0.0.0 mask 0.0.0.0 GW a.b.c.1 as it does in 2008 (per route print.) I'm
>>stumped - any clues?

>
> 1. You put a Default Gateway on only one nic
>
> 2. If a particular nic is dedicated to only the use the VMs than it does
> not need any TCP/IP Specs at all. It does not even need TCP/IP or
> anything else bound to the adapter.
>

 
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Phillip Windell
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      08-28-2009, 08:13 PM
I guess I don't know that the question is.

I don't know if I would even be of any help,..but no one else has
replied,...maybe you need to make the problem more clear.


--
Phillip Windell

The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
-----------------------------------------------------


"Erick Larson" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> 1. Correct - only the management NIC has a default GW set on it. Verified.
>
> 2. Correct - the Hyper-V has no settings. Verified.
>
> "Phillip Windell" <(E-Mail Removed)> wrote in message
> news:#(E-Mail Removed)...
>> "ErickL" <(E-Mail Removed)> wrote in message
>> news:92FB6D41-B0FC-4DB4-911E-(E-Mail Removed)...
>>>I have a Dell PowerEdge 2950 with Win2008R2 as a testbed for Hyper-V. The
>>>box has a dual Broadcom NIC with one side as the management interface
>>>with public IP and the other as a Hyper-V external network for the VMs to
>>>use. The machine also has a dual Intel Pro1000 PT for iSCSI connections.
>>>The setup is identical to the Win2008 box that is currently running
>>>Hyper-V VMs. The machine is in AD and the management NIC shows it as
>>>being in a Domain Network. The Hyper-V network card does not appear in
>>>the network config because it is exclusive for Hyper-V - fine, it works.
>>>The private network NICs with 10.x.x.x IPs appear as a Public Network
>>>(apparently MS name for a private network ;- ) with no network access.
>>>The private network is 10.x.x.x/25 with GW of 10.x.x.1 and the public
>>>network is y.y.y.y/25 with GW of y.y.y.1. So management NIC is a.b.c.d
>>>mask 255.255.255.128 gw a.b.c.1 iSCSI NICs are 10.b.c.d and 10.b.c.e mask
>>>255.0.0.0 no GW. Setting GW on management NIC creates persistent route
>>>0.0.0.0 mask 0.0.0.0 GW a.b.c.1 as it does in 2008 (per route print.) I'm
>>>stumped - any clues?

>>
>> 1. You put a Default Gateway on only one nic
>>
>> 2. If a particular nic is dedicated to only the use the VMs than it does
>> not need any TCP/IP Specs at all. It does not even need TCP/IP or
>> anything else bound to the adapter.
>>



 
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Erick Larson
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Posts: n/a

 
      08-28-2009, 08:42 PM
the two 10.x NICs show that they are connected at 1Gb in the logs
(expected - they are gig NICs on a Gig switch) but in NetworkSharingCenter,
they show as having No Network Access - and they don't. iSCSI, if restricted
to the 10.x NICs will not connect to the SAN on the same 10.x network.
Oddly, I find that if I move the wire from the 10.x NIC to a new port that
has never been used, it will work until the server is rebooted and then it's
back to more of the same. When the server had 2008 on it, all of this worked
just fine.

"Phillip Windell" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I guess I don't know that the question is.
>
> I don't know if I would even be of any help,..but no one else has
> replied,...maybe you need to make the problem more clear.
>
>
> --
> Phillip Windell
>
> The views expressed, are my own and not those of my employer, or
> Microsoft,
> or anyone else associated with me, including my cats.
> -----------------------------------------------------
>
>
> "Erick Larson" <(E-Mail Removed)> wrote in message
> news:%(E-Mail Removed)...
>> 1. Correct - only the management NIC has a default GW set on it.
>> Verified.
>>
>> 2. Correct - the Hyper-V has no settings. Verified.
>>
>> "Phillip Windell" <(E-Mail Removed)> wrote in message
>> news:#(E-Mail Removed)...
>>> "ErickL" <(E-Mail Removed)> wrote in message
>>> news:92FB6D41-B0FC-4DB4-911E-(E-Mail Removed)...
>>>>I have a Dell PowerEdge 2950 with Win2008R2 as a testbed for Hyper-V.
>>>>The box has a dual Broadcom NIC with one side as the management
>>>>interface with public IP and the other as a Hyper-V external network for
>>>>the VMs to use. The machine also has a dual Intel Pro1000 PT for iSCSI
>>>>connections. The setup is identical to the Win2008 box that is currently
>>>>running Hyper-V VMs. The machine is in AD and the management NIC shows
>>>>it as being in a Domain Network. The Hyper-V network card does not
>>>>appear in the network config because it is exclusive for Hyper-V - fine,
>>>>it works. The private network NICs with 10.x.x.x IPs appear as a Public
>>>>Network (apparently MS name for a private network ;- ) with no network
>>>>access. The private network is 10.x.x.x/25 with GW of 10.x.x.1 and the
>>>>public network is y.y.y.y/25 with GW of y.y.y.1. So management NIC is
>>>>a.b.c.d mask 255.255.255.128 gw a.b.c.1 iSCSI NICs are 10.b.c.d and
>>>>10.b.c.e mask 255.0.0.0 no GW. Setting GW on management NIC creates
>>>>persistent route 0.0.0.0 mask 0.0.0.0 GW a.b.c.1 as it does in 2008 (per
>>>>route print.) I'm stumped - any clues?
>>>
>>> 1. You put a Default Gateway on only one nic
>>>
>>> 2. If a particular nic is dedicated to only the use the VMs than it does
>>> not need any TCP/IP Specs at all. It does not even need TCP/IP or
>>> anything else bound to the adapter.
>>>

>
>

 
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Phillip Windell
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Posts: n/a

 
      08-31-2009, 02:12 PM
I had a similar problem with a trial version of 2008R2. After two days
never figfured it out,..gave up. I now have no plans of ever going to
2008,..will probably refuse it like we did Vista. It just seems to be a
repeat of the Vista mess as far as I am concerned.

Maybe others here will have suggestions if you give them time.


--
Phillip Windell

The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
-----------------------------------------------------


"Erick Larson" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> the two 10.x NICs show that they are connected at 1Gb in the logs
> (expected - they are gig NICs on a Gig switch) but in
> NetworkSharingCenter, they show as having No Network Access - and they
> don't. iSCSI, if restricted to the 10.x NICs will not connect to the SAN
> on the same 10.x network. Oddly, I find that if I move the wire from the
> 10.x NIC to a new port that has never been used, it will work until the
> server is rebooted and then it's back to more of the same. When the server
> had 2008 on it, all of this worked just fine.
>
> "Phillip Windell" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> I guess I don't know that the question is.
>>
>> I don't know if I would even be of any help,..but no one else has
>> replied,...maybe you need to make the problem more clear.
>>
>>
>> --
>> Phillip Windell
>>
>> The views expressed, are my own and not those of my employer, or
>> Microsoft,
>> or anyone else associated with me, including my cats.
>> -----------------------------------------------------
>>
>>
>> "Erick Larson" <(E-Mail Removed)> wrote in message
>> news:%(E-Mail Removed)...
>>> 1. Correct - only the management NIC has a default GW set on it.
>>> Verified.
>>>
>>> 2. Correct - the Hyper-V has no settings. Verified.
>>>
>>> "Phillip Windell" <(E-Mail Removed)> wrote in message
>>> news:#(E-Mail Removed)...
>>>> "ErickL" <(E-Mail Removed)> wrote in message
>>>> news:92FB6D41-B0FC-4DB4-911E-(E-Mail Removed)...
>>>>>I have a Dell PowerEdge 2950 with Win2008R2 as a testbed for Hyper-V.
>>>>>The box has a dual Broadcom NIC with one side as the management
>>>>>interface with public IP and the other as a Hyper-V external network
>>>>>for the VMs to use. The machine also has a dual Intel Pro1000 PT for
>>>>>iSCSI connections. The setup is identical to the Win2008 box that is
>>>>>currently running Hyper-V VMs. The machine is in AD and the management
>>>>>NIC shows it as being in a Domain Network. The Hyper-V network card
>>>>>does not appear in the network config because it is exclusive for
>>>>>Hyper-V - fine, it works. The private network NICs with 10.x.x.x IPs
>>>>>appear as a Public Network (apparently MS name for a private network
>>>>>;- ) with no network access. The private network is 10.x.x.x/25 with GW
>>>>>of 10.x.x.1 and the public network is y.y.y.y/25 with GW of y.y.y.1.
>>>>>So management NIC is a.b.c.d mask 255.255.255.128 gw a.b.c.1 iSCSI NICs
>>>>>are 10.b.c.d and 10.b.c.e mask 255.0.0.0 no GW. Setting GW on
>>>>>management NIC creates persistent route 0.0.0.0 mask 0.0.0.0 GW a.b.c.1
>>>>>as it does in 2008 (per route print.) I'm stumped - any clues?
>>>>
>>>> 1. You put a Default Gateway on only one nic
>>>>
>>>> 2. If a particular nic is dedicated to only the use the VMs than it
>>>> does not need any TCP/IP Specs at all. It does not even need TCP/IP or
>>>> anything else bound to the adapter.
>>>>

>>
>>



 
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