Disable unused services and change Winbox port Update When changing the port, make sure not to assign Winbox a port used by another service, the list is here.
> ĭo not use simple usernames, the password must meet security requirements. ?? – MikroTik Protection (basisinstelling apparaatbeveiliging) UsersĬreate a new user with a unique name and remove the built-in default system user account – admin. ?? – MikroTik-Schutz (grundlegende Geräte Sicherheitseinstellung) ?? – MikroTik Protection (paramètre de sécurité de base de l’appareil) ?? – Protección MikroTik (configuración básica de seguridad del dispositivo)
If, when pasting a command into the terminal, commands are automatically inserted (while executing you get a bad command name or expected end of command error), press Ctrl+V to disable this feature. ? The article gives examples of commands in the MikroTik terminal. Attempts to attack this IP, is highly discouraged.Basic configuration of MikroTik router protection: device configuration, firewall configuration, port scan protection, password guessing protection. Kindly note that the IP address used in this demonstration does not belong to timigate and was only used for demonstration purposes. The rules above will block the use of the following application to access the router from the internet:įtp(21), telnet(23), ssh(22), http(80), snmp(161), https(8729), and winbox(8291)
add chain=input dst-address=197.202.3.36 protocol=tcp dst-port=8291 action=dropĪlso see: Mikrotik security: How to block icmp requests to the WAN IP on your Mikrotik router add chain=input dst-address=197.202.3.36 protocol=tcp dst-port=8729 action=drop add chain=input dst-address=197.202.3.36 protocol=tcp dst-port=161 action=drop
add chain=input dst-address=197.202.3.36 protocol=tcp dst-port=80 action=drop add chain=input dst-address=197.202.3.36 protocol=tcp dst-port=22 action=drop add chain=input dst-address=197.202.3.36 protocol=tcp dst-port=23 action=drop
add chain=input dst-address=197.202.3.36 protocol=tcp dst-port=21 action=drop This will ensure that anyone trying to use any of these applications to access the router from the internet will be denied access. The following firewall filter rules will block http, https, ssh, ftp, telnet, winbox, and snmp ports on the router. You may also like: How to permit icmp request from the internet to the IP on the WAN interface of your security router Protocol = tcp or udp, depending on the port number. If there are more than one public IP on the router, an address-list must be used to capture all public addresses on the router.Ĭhain = since the access is aimed at the router and not the devices behind the router, the chain is input. See below:įirst of all, you must understand the following attributes that will be used in the firewall rules.ĭestination address = the public IP assigned to the Mikrotik router. To protect the router, we will configure firewall filter rules to block udp/tcp ports access to the public address assigned to the router.
Since the router has been assigned a public address, as shown on the network topology, it means that the router can be reached from devices connected to the internet. Network topology showing a router connected to the internetįrom the image above, our task is clearly defined protect the router from attacks from the internet by locking down the ports listed above. Let’s consider the network topology below:
The beautiful thing about Mikrotik, which a privilege few know, is that with Mikrotik, you do not need to install a firewall device to protect your network as the Mikrotik router itself is a firewall device, and when properly configured, can protect itself as well as LAN users connected behind it. In this demonstration, I will share with us on how to block ftp, snmp, telnet, ssh, http, https, etc, access to your router from the internet.