Is there another NAT for return traffic that I am missing? Thanks in advance. It appears the client can contact the server but is getting no response. "Allow forwarding for L2TP VPN (udp)" dst-address=192.10.0.100 \ NAT add action=dst-nat chain=dstnat comment="NAT Rule for L2TP General Port 500" \ĭst-address="Mikrotik public IP Address" dst-port=500 protocol=udp to-addresses=\Īdd action=dst-nat chain=dstnat comment="NAT Rule for L2TP General Port 1701" \ĭst-address="Mikrotik public IP Address" dst-port=1701 protocol=udp to-addresses=\Īdd action=dst-nat chain=dstnat comment="NAT Rule for L2TP General Port 4500" \ĭst-address="Mikrotik public IP Address" dst-port=4500 protocol=udp to-addresses=\įirewall: add action=accept chain=input comment="allow L2TP port 500" dst-port=4500 \Īdd action=accept chain=input comment="allow L2TP port 1701" dst-port=1701 protocol=udpĪdd action=accept chain=input comment="allow L2TP port 4500" dst-port=4500 \Īdd action=accept chain=forward comment=\ Here are the rules I have put in place for the VPN: Remember you cannot calculate exact values because you do not always know the outer MTU. In order to connect to your vpn with iPhone or iPad you have to use different protocol. For MSS you can also set 'clamp to PMTU' to calculate it automatically but 1370 is OK with 1400 byte MTU. I can access the VPN from the LAN side.įrom outside the local network, I get an error message saying "the remote server is not responding" and mentioning the possibility of NAT or firewall issue. L2TP + IPsec VPN on Mikrotik router (IOS 10 support) PPTP is not supported anymore by Apple. Packets between the networks behind NAT routers these go without. DOM2 (here the L2tp client, with the router 1 communicates via L2tp (open UDP/1701 to 1) through the provider of your home network (not pppoe interface). The server's LAN side address is 192.10.0.100. 1 (on the L2tp server, the router in the Internet goes through PPPoE) 2.
#L2TP WITH IPSEC ON MIKROTIK ROUTEROS ANDROID#
In the current example we will show how easy it is to setup and configure an L2TP/IPsec server on a MikroTik router with default configuration (RouterOS 6.16 or later) for use with roadwarrior connection (works with Windows, Android an IOS) using winbox interface.
#L2TP WITH IPSEC ON MIKROTIK ROUTEROS WINDOWS#
I have configured Windows Server 2016 for a L2TP VPN connections via pre-shared key. Basic L2TP/IPsec server configuration on a MikroTik device.
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