If your SoftEther VPN Server is behind the NAT or firewall, you have to expose the UDP port 500 and 4500. On the NAT, UDP 500 and 4500 should be transferred to the VPN Server. If any packet filters or firewalls are existing, open UDP 500 and 4500 ports.

How to Set up an L2TP/IPsec VPN Server on Windows In this tutorial, we’ll set up a VPN server using Microsoft Windows’ built-in Routing and Remote Access Service. To do this, we’ll be using the Layer 2 Tunnelling Protocol (L2TP) in conjunction with IPsec, commonly referred to as an ‘L2TP/IPsec’ (pronounced “L2TP over IPsec”) VPN. Jan 07, 2019 · /ip firewall filter add action=accept chain=input comment="L2TP VPN" dst-port=500,1701,4500 \ in-interface=ether1-wan protocol=udp src-port="" add action=accept chain=input in-interface=ether1-wan protocol=ipsec-esp add action=accept chain=input in-interface=ether1-wan protocol=ipsec-ah add action=accept chain=forward dst-address=172.19.190.0/24 src-address=\ 172.19.187.0/24 add action=accept 2. Go to NAT >> Open Ports, and open the required port to the IP address of the VPN server. The ports required for each protocol are: PPTP: TCP 1723 (the router will also forward GRE IP47 automatically) L2TP: UDP 1701 ; IPsec: UDP 500 and UDP 4500 if NAT-T is used (the router will also forward ESP IP50 automatically) 3. Feb 06, 2018 · VPN wizard goes about setting up the SonicWALL as the VPN server which is now what I'm after. Public server asks me to select a server type for which I chose other, then select the VPN L2TP service (I'm not sure if this is correct). It's protocol is L2TP(115) and the port range is 1-65535. Apr 24, 2019 · IPSecVPN: From the Port Forwarding screen, set Local Port to 500 and Protocol to UDP for IPSecVPN tunnel, and then set Local Port to 4500 and Protocol to UDP for IPSec tunnel. Step 3 : From the VPN connection screen on your mobile device or PC, enter the WAN IP address of Root AP or DDNS hostname in the VPN server address filed. set vpn l2tp remote-access authentication radius server 10.0.0.1 key 'foo' set vpn l2tp remote-access authentication radius server 10.0.0.2 key 'foo' Note Some RADIUS severs use an access control list which allows or denies queries, make sure to add your VyOS router to the allowed client list.

May 24, 2019 · IPsec is often used to secure L2TP packets by providing confidentiality, authentication and integrity checks. The combination of these two protocols provides a high-security VPN solution known as L2TP/IPSec. L2TP/IPSec is supported on Windows, Mac, Linux, and mobile devices.

Re: ipsec vpn ports? Most likely not possible on an ASDL modem and since he is doing NAT the solution would be as stated above to use NAT-T. Therefore pushing phase 2 up to udp/4500.

[SOLVED] Setting up L2TP/IPSec behind SonicWALL

L2TP or IPSec VPN service is built-in on some routers, the port 1701, 500 or 4500 might be occupied. To ensure VPN Server works properly, you might need to disable the built-in L2TP or IPSec VPN service through the router's management interface to have the L2TP/IPSec of VPN Server work. How to Set Up VPN on Synology with L2TP | KeepSolid VPN