Hi @Sun
I have no idea about Junos specific configuration but you need to enable something called Split tunneling. This feature will make sure all LAN network traffic will go trough the Juniper VPN and internet traffic use the regular Azure VM routing and Gateway.
I did some research, it seems you can enable this under the user role ---> network connect tab.
In addition, you have to create a split tunneling resource policy and define the network range you want going through the tunnel. By default, JunOS pulse will add a default route into your routing table.
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Regards,
Didier3001