Choosing a NIC for synchronization   

Hi,

Our Exchange Server has two NIC (also used for OMA)
I 'm looking for a way to select only one NIC card (and not the other) when 
the PDA are synchronizing

In fact, the synchronization works well when I deactivate one NIC but as I 
activate both, the synchronization doesn't work anymore.

When I look at the IIS log, It seems that the Activesync tries to 
synchronize on the wrong NIC.

Thanks in advance,
Hervé -

date: Thu, 18 Oct 2007 18:39:30 +0200   author:   behemoth

Re: Choosing a NIC for synchronization   

Multihoming your Exchange server is not recommended.  You would be better 
served to look at Teaming your Nics.

-- 
John Oliver, Jr
MCSE, MCT, CCNA
Exchange MVP 2008
Microsoft Certified Partner


"behemoth"  wrote in message 
news:47178c61$0$27400$ba4acef3@news.orange.fr...
> Hi,
>
> Our Exchange Server has two NIC (also used for OMA)
> I 'm looking for a way to select only one NIC card (and not the other) 
> when the PDA are synchronizing
>
> In fact, the synchronization works well when I deactivate one NIC but as I 
> activate both, the synchronization doesn't work anymore.
>
> When I look at the IIS log, It seems that the Activesync tries to 
> synchronize on the wrong NIC.
>
> Thanks in advance,
> Hervé -
>

date: Thu, 18 Oct 2007 13:44:46 -0400   author:   John Oliver, Jr. [MVP]

Re: Choosing a NIC for synchronization   

Hi,

I know this not a good practice.

But since we need to use two NIC (one network is used for saving exchange 
and we are obligated to deactivate it).

Hervé -

"John Oliver, Jr. [MVP]"  a écrit dans le message de 
news: 101C3FDC-6AE5-49CD-993C-3CB8DD5E3446@microsoft.com...
> Multihoming your Exchange server is not recommended.  You would be better 
> served to look at Teaming your Nics.
>
> -- 
> John Oliver, Jr
> MCSE, MCT, CCNA
> Exchange MVP 2008
> Microsoft Certified Partner
>
>
> "behemoth"  wrote in message 
> news:47178c61$0$27400$ba4acef3@news.orange.fr...
>> Hi,
>>
>> Our Exchange Server has two NIC (also used for OMA)
>> I 'm looking for a way to select only one NIC card (and not the other) 
>> when the PDA are synchronizing
>>
>> In fact, the synchronization works well when I deactivate one NIC but as 
>> I activate both, the synchronization doesn't work anymore.
>>
>> When I look at the IIS log, It seems that the Activesync tries to 
>> synchronize on the wrong NIC.
>>
>> Thanks in advance,
>> Hervé -
>>
>

date: Fri, 19 Oct 2007 20:33:18 +0200   author:   behemoth

Re: Choosing a NIC for synchronization   

On Fri, 19 Oct 2007 20:33:18 +0200, "behemoth" 
wrote:

>Hi,
>
>I know this not a good practice.
>
>But since we need to use two NIC (one network is used for saving exchange 
>and we are obligated to deactivate it).
>
>Hervé -
If you mean backing up Exchange then you should configure your NICs
properly so that the HTTP(s) traffic is not exposed to the card.

date: Fri, 19 Oct 2007 20:01:04 +0100   author:   Mark Arnold [MVP]

Re: Choosing a NIC for synchronization   

Hi,

Note that OWA works well on the same server with 2 NIC but not with OMA.
In the IIS log,when both cards are enabled, we see that ActiveSync tries to 
connect to the wrong network (the backup network).

Thus I think we should find a way to tell to ActiveSync : "choose this NIC".

Hervé -

date: Sat, 20 Oct 2007 11:18:08 +0200   author:   behemoth

Re: Choosing a NIC for synchronization   

behemoth  wrote:
> Hi,
>
> Note that OWA works well on the same server with 2 NIC but not with
> OMA. In the IIS log,when both cards are enabled, we see that ActiveSync
> tries to connect to the wrong network (the backup network).
>
> Thus I think we should find a way to tell to ActiveSync : "choose
> this NIC".
> Hervé -

You can tell it, but I don't think it's going to pay much attention.
Multihomed servers are generally a Bad Thing.

date: Mon, 22 Oct 2007 14:40:01 -0400   author:   Lanwench [MVP - Exchange]

Re: Choosing a NIC for synchronization   

Server bad. Server naughty. Lanwench beat evil server. Other MVPs sell
tickets. MVPs can pay summit bar bill. Phew.

date: Mon, 22 Oct 2007 20:16:51 +0100   author:   Mark Arnold [MVP]

Re: Choosing a NIC for synchronization   

"Lanwench [MVP - Exchange]"
 wrote:

>behemoth  wrote:
>> Hi,
>>
>> Note that OWA works well on the same server with 2 NIC but not with
>> OMA. In the IIS log,when both cards are enabled, we see that ActiveSync
>> tries to connect to the wrong network (the backup network).
>>
>> Thus I think we should find a way to tell to ActiveSync : "choose
>> this NIC".
>> Hervé -
>
>You can tell it, but I don't think it's going to pay much attention.
>Multihomed servers are generally a Bad Thing. 

My multi-homed, load-balanced front-end servers do very well, thank
you.

-- 
Rich Matheisen
MCSE+I, Exchange MVP
MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm
Don't send mail to this address mailto:h.pott@getronics.com
Or to these, either: mailto:h.pott@pinkroccade.com mailto:melvin.mcphucknuckle@getronics.com mailto:melvin.mcphucknuckle@pinkroccade.com

date: Mon, 22 Oct 2007 21:38:12 -0400   author:   Rich Matheisen [MVP]

Re: Choosing a NIC for synchronization   

Rich Matheisen [MVP]  wrote:
> "Lanwench [MVP - Exchange]"
>  wrote:
>
>> behemoth  wrote:
>>> Hi,
>>>
>>> Note that OWA works well on the same server with 2 NIC but not with
>>> OMA. In the IIS log,when both cards are enabled, we see that
>>> ActiveSync tries to connect to the wrong network (the backup
>>> network).
>>>
>>> Thus I think we should find a way to tell to ActiveSync : "choose
>>> this NIC".
>>> Hervé -
>>
>> You can tell it, but I don't think it's going to pay much attention.
>> Multihomed servers are generally a Bad Thing.
>
> My multi-homed, load-balanced front-end servers do very well, thank
> you.

Smartypants. You know what I mean.

date: Tue, 23 Oct 2007 10:55:41 -0400   author:   Lanwench [MVP - Exchange]