SonicWALL 5.8.1 Manuale Utente

On the Firewall > Access Rules page, click the Configure icon for the intersection of WAN to 
LAN traffic. Click the Configure icon next to the default rule that implicitly blocks uninitiated 
traffic from the WAN to the LAN.

In the Edit Rule window, select Allow for the Action setting, and then click OK.

In this scenario the WAN interface is used for the following:

Access to the management interface for the administrator

Subscription service updates on MySonicWALL

The default route for the device and subsequently the “next hop” for the internal traffic of 
the SSL VPN appliance (this is why the UTM device WAN interface must be on the same 
IP segment as the internal interface of the SSL VPN appliance)

The LAN interface on the UTM appliance is used to monitor the unencrypted client traffic 
coming from the external interface of the SSL VPN appliance. This is the reason for running in 
Layer 2 Bridge Mode (instead of reconfiguring the external interface of the SSL VPN appliance 
to see the LAN interface as the default route).

On the Network > Interfaces page of the SonicOS Enhanced management interface, click the 
Configure icon for the WAN interface, and then assign it an address that can access the 
Internet so that the appliance can obtain signature updates and communicate with NTP. 

The gateway and internal/external DNS address settings will match those of your SSL VPN 
appliance:

IP address: This must match the address for the internal interface on the SSL VPN 
appliance.

Subnet Mask, Default Gateway, and DNS Server(s): Make these addresses match your 
SSL VPN appliance settings.