/ppp active print
For remote clients to reach the router, you must allow L2TP and IPsec traffic through the input chain of your MikroTik firewall. L2TP/IPsec uses the following ports: : L2TP traffic UDP 500 : IPsec ISAKMP (Key Exchange) UDP 4500 : IPsec NAT Traversal (NAT-T) Using Winbox Terminal
Now, you'll create the user accounts that will be used to authenticate VPN connections. mikrotik l2tp server setup full
By following this guide, you have successfully set up a secure L2TP/IPsec VPN server on your MikroTik router, enabling secure remote access to your network.
Setting use-ipsec=required forces clients to negotiate IPsec. No insecure L2TP-only connections allowed. /ppp active print For remote clients to reach
To set up an L2TP server on your Mikrotik router, follow these steps:
While L2TP/IPsec is a reliable workhorse, it is worth noting that modern protocols like and IKEv2 offer better performance, lighter code, and more modern cryptography. If your client devices and RouterOS version support them, they are excellent alternatives to consider for a future-proof deployment. If you have any specific issues, the MikroTik community forums are an excellent resource for additional help. Setting use-ipsec=required forces clients to negotiate IPsec
If your default policy is drop , you must also allow established/related traffic:
/ppp secret add name=john password=securepassword123 profile=l2tp-profile service=l2tp
/ip firewall filter print
If you see a "phase1 negotiation failed due to time up" error, it is almost always caused by a Network Address Translation (NAT) table issue in the router provided by your ISP. The simplest fix is to reboot the ISP's router/modem . A more permanent solution, if possible, is to configure the MikroTik as a "DMZ host" in that ISP router, which forces it to use untranslated ports.