Mikrotik L2tp Server Setup Full Today

/queue simple add name=vpn-limit target=192.168.100.0/24 max-limit=10M/10M

/ip firewall filter add chain=input protocol=udp dst-port=500,4500 src-address-list=bruteforce-ipsec action=drop comment="Drop IPSec bruteforce"
/ip firewall filter add chain=input protocol=udp dst-port=500,4500 connection-limit=10,32 action=add-src-to-address-list address-list=bruteforce-ipsec address-list-timeout=1h

Layer 2 Tunneling Protocol (L2TP) combined with IPsec (Internet Protocol Security) is one of the most common VPN solutions for remote access. While not as modern as WireGuard or SSTP, L2TP/IPsec offers a good balance of security, native support on virtually all operating systems (Windows, macOS, iOS, Android, Linux), and reasonable performance.

MikroTik RouterOS provides a robust, built-in L2TP server implementation. However, its configuration requires careful attention to IPsec proposals, firewall rules, and profile settings to ensure both security and connectivity.

This guide will walk you through a production-ready L2TP/IPsec setup on MikroTik, covering everything from basic configuration to advanced troubleshooting.

This is where most setups fail. You must allow IPsec and L2TP through the firewall and enable NAT for internet access. mikrotik l2tp server setup full

Input Chain (Allow VPN traffic to the router):

/ip firewall filter add chain=input protocol=udp port=500,4500 action=accept comment="IPsec"
/ip firewall filter add chain=input protocol=ipsec-esp action=accept comment="IPsec ESP"
/ip firewall filter add chain=input protocol=udp port=1701 action=accept comment="L2TP"

Forward Chain (Allow VPN clients to access LAN/Internet):

/ip firewall filter add chain=forward src-address=192.168.100.0/24 action=accept comment="VPN to Any"

NAT (Masquerade for Internet access): Assuming your WAN interface is ether1 or pppoe-out1. /queue simple add name=vpn-limit target=192

/ip firewall nat add chain=srcnat src-address=192.168.100.0/24 action=masquerade out-interface-list=WAN

Create credentials for each remote user.

/ppp secret add name=johndoe password=StrongPass123 service=l2tp profile=l2tp-profile

Repeat for additional users. Use strong passwords.

Objective: To securely connect remote clients (Windows, macOS, iOS, Android) to your MikroTik LAN using L2TP over IPsec. This guide covers configuration from IP pool creation to firewall rules and client export. Layer 2 Tunneling Protocol (L2TP) combined with IPsec

/ip firewall filter add chain=forward src-address=192.168.100.0/24 action=accept comment="Allow VPN clients to forward"
/ip firewall filter add chain=forward dst-address=192.168.100.0/24 action=accept comment="Allow responses back to VPN"

Each user needs a PPP secret entry. Replace john and securepassword123 with your own.

/ppp secret add name=john password=securepassword123 profile=l2tp-profile service=l2tp

For multiple users, repeat this command with different names.

To allow a user to access the LAN and internet, no additional routes are needed if your local LAN subnet is reachable from the VPN pool.