This last weekend, I went to a new customer location and began programming a router to automatically move traffic over to Bullitt when their legacy provider failed. I was plugged in with my laptop programming the local area network configuration, I fired up the Bullitt port and was beginning on working on the port for the existing provider when I noticed all of these log entries showing someone trying to hack in to the router's telnet port.
I had not seen this in a long time. How was someone getting into our network to hack this router? I took some time to investigate and was reminded that the existing provider's network was not protected from such an attack. I RARELY see this on our network due to our security. I quickly disabled the services that were responsible for this and hardened the router security.
This brings to mind that you should always use the following to protect your router:
-Try to change the username if you can from admin to something else
-Change your password to a very secure password including numbers, letters, symbols and upper and lower case text; don't use dictionary works.
-NEVER NEVER use your name, business name or phone number.
Check out this helpful link: http://mentalfloss.com/article/504786/8-tips-make-your-passwords-strong-possible
Good luck and safe internetting!