How to connect to my LAN network while a VPN tunnel is up

Hi to everyone,
I decided to by a USG 20 unit to let myself connect to home lan network. At moment i cascaded a modem from ISP provider , zyxel and a router netgear. In particular the address config is the follow:



Sercomm is used just to remain active the voip line cos my provider do not permit different modem .
Public IP is made static by a ddns service.
For the VPN Service I've selected a VPN-SLL cos i found it easier. As Client I use Zyxel Securextender.
Following steps has been performed:
1- Forwarding the 443 port on Sercomm
2- Creation of a new VPN user in the section Object of the zyxel

3 - In the VPN -->VPN SSL section I have set connection enabling the user created and allowing him to acces at zyxel lan (192.168.1.1)



The result is that I can access to my zyxel from remote place in fact the client establish a connection with thw follow parameters


I find that, correctly , the assigned address is of the kind 192.168.1.X and browsing to 192.168.1.1 i can open the zyxel homepage....... but when I try to reach one of the elements of the netgear subnet, i.e. I try to reach my NAS at the address 192.168.0.4, I can't access. Any ping I tried to the element of my home network is failed. Someone can help me?

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