SBS and subnet routing over Gateway to Gateway VPN

I've seen many explanations close to what I need, but I just can't seem to get this to work. I have a Main Office running Small Business Server with a subnet of 192.168.1.0. I have a Branch Office with subnet 192.168.5.0 that I need to connect to the MO via Gateway to Gateway VPN. I've got Cisco RV320s at each end. The VPN is working over the RV320s. I can ping from one subnet to the other. I can even print from the MO subnet to the BO subnet to a network printer using the static IP address of the printer on the BO subnet. What I need to be able to do is browse the subnets from each other; access the SBS from the BO subnet via the VPN, etc. Basically, I need it to act as a single network. What all do I need to do? Set up the subnets in the RV320s? Add the BO subnet to AD on the SBS? Seems like I'm 90% of the way there, but missing something. Thanks.
SEStrattonAsked:
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asavenerCommented:
SBS does not support trust relationships, (or at least it didn't a few years ago), so you won't be able to use your main office credentials at the branch office.

But as for accessing resources, what is the default gateway on each subnet and what is the IP address of the VPN gateways?  Basically, you will need to add a routing entry on the default gateway at each location in order to route the traffic appropriately.
Cris HannaSr IT Support EngineerCommented:
You'll need to create some static routes
https://technet.microsoft.com/en-us/library/cc757323(v=ws.10).aspx

In the remote office is there a server there providing DNS and DHCP or is this all being done through the firewall/router?

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SEStrattonAuthor Commented:
Thanks for the link. I'll spend some time with it. In the remote office there is no server. The Cisco RV320 is the DHCP server.
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