SonicWALL 5.8.1 Manuale Utente

Add a 'published' static ARP entry for the gateway address that will be used for the secondary 
subnet, assigning it the MAC address of the SonicWALL interface to which it will be connected.

Add a static route for that subnet, so that the SonicWALL regards it as valid traffic, and knows 
to which interface to route that subnet's traffic.

Add Access Rules to allow traffic destined for that subnet to traverse the correct network 
interface.

Optional: Add a static route on upstream device(s) so that they know which gateway IP to use 
to reach the secondary subnet.

Consider the following network example:

To support the above configuration, first create a published static ARP entry for 192.168.50.1, 
the address which will serve as the gateway for the secondary subnet, and associate it with the 
appropriate LAN interface. From the Network > ARP page, select the Add button in the Static 
ARP Entries section, and add the following entry:

Internet

Network Security Appliance

192.168.168.168
00:06:81:04:00:E4

192.168.50.1
00:06:01:04:00:E5

66.178.222.123 (ISP assgined)

192.168.168.5

192.168.50.5

192.168.50.10

192.168.168.7

192.168.168.x/24

192.168.50.x/24