SSL Certs and IP addresses?

We have 2x sites with an exchange 2010 box @ each site.  ASite A and B

Site A has all production mailboxes, site B has none but both are configured the same settings in case we need to utilise site B.

Both have the same CAS and SSL cert installed.  We believe the server at site b is accepting the SSL EAS requests.

I want to either force production server to handle these requests.

Can i achive this?  Where does the external IP address (in our case a firewall) reside?  In the SSL cert or exchange?

Who is Participating?
Ram BalachandranConnect With a Mentor Commented:
It  will be in router and then accessed by DNS
CHI-LTDAuthor Commented:
To confirm on a test i see:

      The Microsoft Connectivity Analyzer is testing Exchange ActiveSync.
       Exchange ActiveSync was tested successfully.
      Additional Details
Elapsed Time: 9815 ms.
      Test Steps
      Attempting to resolve the host name in DNS.
       The host name resolved successfully.
      Additional Details
IP addresses returned: external IP address Site A, External IP address Site B
Elapsed Time: 124 ms.
Ram BalachandranCommented:
You need to check with your network team if any Load Balancer is configured to route the traffic to Site B, in that case it need to be blocked
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CHI-LTDAuthor Commented:
There isnt.  Both are in the same domain, over a VPN connection.
Trying to find out where the external ip addresses are stored?  SSL cert?  DNS?
Ram BalachandranConnect With a Mentor Commented:
Also, external IP address will be with Vendor/Service Provider from where you purchased IP addresss .  
Outside DNS will need to point to the address your ISP has given you on the outside.

Your MX Record needs to be the server that is going to receive your emails, in your case if GoDaddy is going to receive it and forward it to you, then it should be their IP Address and GoDaddy folks needs to be provided the internet facing IP of your firewall / router

Refer :
CHI-LTDAuthor Commented:
ah yes, DNS on our domain....

With 123reg..
CHI-LTDAuthor Commented:
Is there a way to prioritise the way in which EAS on device setup accesses from external into our network(s) as it seems to be talking to the backup server?
Must be site a then site b.
CHI-LTDAuthor Commented:
found that there was a dns entry in there for the 2nd server which couldnt then connect to the other exchange server...
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