Replacing VPN between 2 sites with dark fiber.

I currently have 2 sites, each with their own ISP. I have Sonicwall NSA 210s at each end connected with VPN. I am in process of getting a fiber connection between these 2 sites. What is the best way to reconfigure VPN, routing, IPs, etc to make this work while each site uses their own ISP for internet?

Site A 10.0.0.x
PDC resides
All servers that Site A and B use resides here.
Local ISP1

Site B 10.0.10.x
Remote Site DC resides
Local ISP2
Dennis JansonIT ManagerAsked:
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Dan CraciunIT ConsultantCommented:
I haven't worked with Sonicwalls, but on Cisco ASA or RV the VPN site-to-site is by default only used for internal addresses, meaning all internet traffic will go to the local ISP.
You need to specifically add routes to change this behavior.

Dennis JansonIT ManagerAuthor Commented:
It just may be that easy with Sonicwall as well. I will definitely try that first when I get setup. However I am not clear on what I need to enter for VPN Primary gateway on each end when it's no longer the Public IP from each ISP, or where to physically plug in the Dark fiber cable for proper setup.
Dan CraciunIT ConsultantCommented:
If the connection is point-to-point, do you still need VPN?
Just define a new network ( and for ex) for the ends and add a route for internal traffic.
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Dennis JansonIT ManagerAuthor Commented:
That was another option I thought was feasible. I this case to create this route do I need to assign a LAN port on my SonicWall to be another LAN zone or LAN2? I may an issue with not enough port assignments available because I have a 2nd ISP at each site for failover as well.
Dan CraciunIT ConsultantCommented:
Again, I don't know on a Sonicwall.

On an ASA I would create a new zone, inside2, with a single port as member, then create a route between inside and inside2.

I guess it's the same as the LAN zone on the Sonicwall.
Dennis JansonIT ManagerAuthor Commented:
Very similar I imagine. Also I would think that the static routing would perform better over the VPN option.

Dan CraciunIT ConsultantCommented:
Yup. But you lose encryption. You need to check if the connection is really private.

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