Blake,      I did note that this was "over an existing Site to Site VPN" that we have in place that those guides assist in setting up.  That is working without issue.  I need to add/update the VPN now to send all internet bound traffic over this same existing VPN and have it reach the internet and allow returns.  That said, maybe I may need firewall rules, but as that data is transformed on the SonicWall site using a Nat rule from WAN to WAN I assumed it was allowed traffic.     I used these two guides when trying to initially configure and test with just 8.8.8.8   https://www.sonicwall.com/support/knowledge-base/how-can-i-configure-tunnel-all-internet-traffic-over-site-to-site-vpn/170504924710971   https://documentation.meraki.com/MX/Site-to-site_VPN/Site-to-Site_VPN_Settings#Non-Meraki_VPN_peers ... View more