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How do I get replication to work from Servers on different domains and subnets.

I have a HyperV host on one Domain of techno.local and another on a domain of servhost.com. The servhost.com is on IP scheme 172.16.10.2 and the techno.local server is on 172.16.20.40. Both are on the same physical network. HOWEVER the servhost.com is actually on a Domain that has its DNS Servers on another subnet across a VPN. That IP scheme is 10.16.3.0. I was able to join the server on the 172.16.10.0 network to the domain at 10.16.3.0 with the proper credentials and the DNS pointed to the DNS Server of 10.16.3.10. But now I am trying to setup HyperV replication from the 10.2 and 20.40 machines on different domains and they can't see each other. How can I get around that?
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Cliff Galiher
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If they are on the same logical subnet them they should "see" each other, but you'll have to use certificate based authentication and configure DNS records appropriately. If they are on different subnets, it won't matter that they are on the same physical or layer-2 network. You'll need to configure routing between the subnets. And the above about certificates and DNS still applies.
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I was able to create conditional forwarders and allow them to ping each other. But when I go to use Kerberos Authentication it says "The specified target is unknown or unreachable." I know it is reachable so it must be an authentication issue. Can it be resolved without certificates if I use Kerberos?
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Cliff Galiher
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