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Site to Site fiber but use different internet.

I have Site A that has the server, site B connects to site A over a direct underground fiber connection to upload files and do print jobs.

Is it possible, if so how, to have site A and B on separate internet connections and still use the fiber link between them for faster uploads to the server?

For the routers on both sides I will put SonicWALL TZ205's and gigabit switches.

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Jason O'Rourke

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N-W

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JasonDuncanworks

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@ N-W

How would the IP Scheme work?

Site A Site B

Public IP - WAN on X1 Public IP - WAN on X1
10.0.0.X - LAN on X0 10.20.0.X - LAN on X0
10.10.0.X - LAN on X3 Direct Fiber Line 10.10.0.X - LAN on X3 Direct Fiber

Would the DHCP server still reside on X0? How would the clients access the different subnet?

N-W

That addressing scheme looks fine. The link between both sites would only require a point-to-point network, so you could use the addresses 10.10.0.1 and 10.10.0.2, both with a subnet mask of 255.255.255.252.

You would then need to add a route on each Sonicwall, to give access to the other site. Something like:

Site A (which has 10.10.0.1 as X3)
Source Destination Next-hop
10.0.0.0/24 10.20.0.0/24 10.10.0.2

Site B (which has 10.10.0.2 as X3)
Source Destination Next-hop
10.20.0.0/24 10.0.0.0/24 10.10.0.1

DHCP server would still be on X0 for each firewall.