UniFi - USG/UDM: Configuring L2TP Remote Access VPN
L2TP over IPSec To allow Internet Key Exchange (IKE), open UDP 500. To allow IPSec Network Address Translation (NAT-T) open UDP 5500. To allow L2TP traffic, open UDP 1701. Cookbook | FortiGate / FortiOS 6.2.2 | Fortinet L2TP over IPsec This is an example of L2TP over IPsec. This example uses a locally defined user for authentication, a Windows PC or Android tablet as the client, and net‑device is set to enable in the phase1‑interface settings. If net-device is set to disable, only one device can establish an L2TP over IPsec tunnel behind the same NAT device. PPTP and L2TP Ports – Steven Eppler's Blog Dec 07, 2005 How to Set up an L2TP/IPsec VPN Server on Windows
May 23, 2017 · This video demonstrates a couple of ways to set up an L2TP over IPsec VPN Server on an Edge Router. Here are the steps discussed in this video: STEP 1: Setting WAN Interface and internal network
Oct 10, 2016 · In L2TP over IPSec we have to create an IPSec peer as below: /ip ipsec peer add dpd-maximum-failures=2 enc-algorithm=3des,aes-128,aes-256 exchange-mode=main-l2tp \ generate-policy=port-override local-address=172.30.19.1 secret=1234567890. With the configuration above, the Mikrotik should be ready to accept L2TP request from clients. There are no other pre-existing L2RP/IPSec port forward rules or otherwise conflicting port forward rules (e.g.: another rule for ports 500, 1701 or 4500) There was an L2TP port triggering rule enabled, that I toggled on and off with no change; Verified the firewall on VPN server had an exclusion for L2TP, or that the firewall is off.
Apr 04, 2018
Forwarded ports will take priority over the ports used by the USG/UDM itself. Possible Cause #3 - The VPN client is using an incorrect pre-shared key, username, password, or authentication method. In this situation, the L2TP VPN client and server are not using a matching pre-shared key or authentication method or credentials (username/password). L2TP over IPSEC Passthrough - Issues - Cisco Community Basically I have a Draytek router (LAN IP 10.14.99.99) connected to a Cisco Router via the Wan 1 port (WAN IP 10.14.100.97) and the Cisco router having the IP 10.14.100.101. I have the Draytek working as a VPN Server and trough PPTP everything works fine. Then I was requested to change the connection protocol from PPTP to L2TP over IPSEC.