What measures can be taken to ensure the security of a router from potential external attacks?

To protect a router from external attacks, the following measures can be taken:

• Firmware update: regularly install the latest updates and patches from the manufacturer to close known vulnerabilities.
• Change default passwords: use complex, unique passwords for accessing the router interface.
• Disable unnecessary services: turn off services and ports that are not used (e.g., Telnet, UPnP).
• Configure a firewall: restrict incoming and outgoing traffic by IP addresses and ports.
• Use VPN: employ secure VPN connections for remote access.
• MAC address filtering: allow access only to known devices.
• Log monitoring: regularly check logs for suspicious activity.

These measures will significantly reduce the risk of external attacks on the router.