Figure 2: Linksys BEFSR41 VPN Port forwarding. PPTP also needs IP protocol 47 (Generic Routing Encapsulation) for the VPN data traffic itself, but note that this is a required protocol, not a port. The ability to handle this protocol must be built into the router's NAT "engine" - which is true of most present-generation routers.

Sometimes it might be necessary to put your USG behind a NAT router, but you still want to build a VPN tunnel to the USG. This tutorial shows how to configure this feature in no-time! Walkthrough Steps. Click on Quick setup > VPN Setup > VPN Settings for L2TP and click "Next" Enter a preshared key and click "Next" The routers in the offices do not have a VPN capability however it is possible for me to NAT/PAT individual devices out of the network, as well as to add additional static routes. Is it possible for me to create a site to site tunnel behind NAT? Oct 31, 2017 · Re: AnyConnect VPN behind NAT device I do not see any obvious caveat to this approach. If you are using the outside ASA's WAN ip address and port forwarding only TLS and DTLS ports, be aware that any port 443 services on the outside ASA would cause a conflict (including any servers using the ASA's ip address and 443 port). I have two USG's, one with a public IP, one behind NAT. I need to create a site-to-site VPN of some sort between the two. Using the "Site-to-Site VPN" network in the controller does not function. I'm not able to access anything on the side behind NAT right now, aside from via the controller. Has anybody else been in a similar situation? NOTE: NAT traversal feature in SonicWall is a global settings, changing this settings will affect all Global VPN and site to site VPN policies, also note that enabling this feature will not have impact on normal VPN working even though IPSEC gateways are not behind NAT device but disabling this feature will have impact the VPN policies where

Feb 19, 2019

Microsoft is recommending that IPSec/NAT-T not be used to connect a Windows XP client to Windows VPN servers that are behind NAT devices, and XP Service Pack 2 changes the default behavior to

Feb 19, 2016

Feb 27, 2014 How can I disable/enable NAT traversal in VPN settings NOTE: NAT traversal feature in SonicWall is a global settings, changing this settings will affect all Global VPN and site to site VPN policies, also note that enabling this feature will not have impact on normal VPN working even though IPSEC gateways are not behind NAT device but disabling this feature will have impact the VPN policies where