www.zyxel.com
In the SonicWALL VPN > Settings > VPN Policies > Network, choose Local Network
to be the IP address range of the network connected to the SonicWALL (found
under SonicWALL > Network > Interfaces > LAN).
Go to Remote Network and create a new address IP address range of the network
connected to the ZyWALL/USG. Then, scroll down the list to choose the newly
created Address Object to be the Remote Network.
VPN > Settings > VPN Policies > Network
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