Symptoms The need was to reach an host inside a LAN through a VPN connection managed by the LAN gateway (Cisco 1921). The LAN gateway performs NAT and there was a dedicate nat rule for the host i wanted to reach through VPN. I couldn't connect to the host. Same result trying to connect to ports invo
HOW TO CONFIGURE NAT OVER VPN IN A SITE TO SITE VPN In this scenario, a VPN tunnel is created between a SonicWall NSA 2400 and a SonicWall NSA 240, and NAT over VPN tunnel is configured to translate the networks to a different subnet. Site A subnet, 192.168.1.0/24 is translated to a virtual subnet of If you have public IP addresses to spare, then set the Sonicwall WAN up on one of them, so no NAT is happening on the router (do NAT on the Sonicwall to your protected network). Then it's pretty straightforward. Each end of the link you set up the VPN (If using Enhanced OS, first create a "network" range name on each firewall thus: From the SonicWALL side, you will however see the familiar green circle indicating the VPN is live and you will be able to pass traffic over the tunnel. If you want to see the status from the USG, you can log into the CLI and type the command “show vpn ipsec status” which will indicate if the IPsec tunnel is active. 5. There should already be a NAT policy auto created to NAT the Traffic out of the WAN IP from the SSL VPN Network, if not create one like below, (Tip if you enable Tunnel All mode on the SSL VPN Client Route Settings and then Disable again it will auto create the NAT policy for you and retain it even after a reboot.) 6.
By default, Static Routes on a SonicWALL will overrule VPN Tunnel routes. If a Static Route has been defined for the Destination Network, the SonicWALL will use this route instead of passing the traffic on to the VPN Tunnel. With the introduction of SonicOS Enhanced 4.0, a new option "Allow VPN path to take precedence " has been introduced.
1-to-1 NAT through a VPN affects only the traffic through that VPN. The rules you see when you select Network > NAT do not affect traffic through a VPN. In Fireware v12.4 or higher, in the VPN gateway settings, if you select IPv6 Addresses as the address family, NAT settings are …
Netmon over a Site 2 Site VPN — SonicWall Community
S onicOS Standard 31 Administrator's Guide - SonicWall SONICWALL SONICOS STANDARD 3.1 ADMINISTRATOR’S GUIDE v PART 5: Wireless Chapter 22:Setting Up the WLAN Using the Wireless Wizard and Monitoring Your WLAN125 Cisco ASA Series CLI Configuration Guide, 9.0 Sep 25, 2018