I have created a VPN site-to-site with a Sonicwall NSv on Azure and a TZ400 on-premises. The VPN is ON but the traffic between the two sites does not go through. I am able to ping the X0 (LAN interface) on NSv from the site but not the other VMs sitting behind the Sonicwall. I have created the routing table on vnet on Azure to route all the traffic to the X0 LAN interface of the Sonicwall (it works). The other site-to-site VPNs that I have between the physical firewalls on the other sites work perfectly fine, but not with the NSv model on Azure.
Sonicwall support was useless. Am I missing something?