/ppp active print Check IPsec active peers:
/ip firewall filter add chain=input protocol=udp dst-port=500,4500 action=accept comment="IPsec VPN" /ip firewall filter add chain=input protocol=ipsec-esp action=accept comment="IPsec ESP" /ip firewall filter add chain=input protocol=udp dst-port=1701 action=accept comment="L2TP" /ip firewall filter add chain=forward src-address=192.168.99.0/24 action=accept comment="VPN to LAN" /ip firewall filter add chain=forward dst-address=192.168.99.0/24 action=accept comment="LAN to VPN" (If you use a default drop policy) Ensure established/related is allowed /ip firewall filter add chain=input connection-state=established,related action=accept /ip firewall filter add chain=forward connection-state=established,related action=accept Step 6: NAT for VPN Client Internet Access (Optional) If you want VPN clients to reach the internet through the router (full tunnel):
/ip ipsec proposal add name=l2tp-proposal auth-algorithms=sha256 enc-algorithms=aes-256-cbc lifetime=8h /ip ipsec profile set default proposal=l2tp-proposal Check L2TP server status:
/ip firewall nat add chain=srcnat src-address=192.168.99.0/24 action=masquerade RouterOS automatically creates dynamic IPsec peers when use-ipsec=yes is set on L2TP. However, you can fine-tune:
/ip pool add name=vpn-pool ranges=192.168.99.2-192.168.99.254 IP → Pool → + → Name: vpn-pool , Addresses: 192.168.99.2-192.168.99.254 Step 2: Create L2TP Server Profile CLI:
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