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TZ350 behind existing ISP Router / Firewall for just VPN


I'm searching for a company a small VPN solution for Windows Clients...

The company has already a network with a router dsl network including firewall.

I don't want to change current setup. (if possible...)

Can I setup the TZ350 in same network (and IP range) as current internal Windows clients behind the router and just forward a port for VPN to the TZ350 for VPN entry?

Regards Dirk

Category: Entry Level Firewalls

Best Answer


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    Hello @Dirk,

    Welcome to SonicWall community.

    Usually we connect to the WAN interface of the firewall to gain access to the internal resources on LAN. You can connect the TZ 350 and get the same IP scheme that you have at the moment on your network. The problem you would encounter would be that the network that you are trying to access will also be on WAN.

    I would suggest using a SMA appliance that is solely for VPN purposes and uses SSLVPN for connectivity.

    This KB article should help.

    We also support this on virtual platforms for which you can use 500v model.


    Shipra Sahu

    Technical Support Advisor, Premier Services

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