What aditional can be done to protect the router from bruteforce attacks, trying to guess the username/password combination.Last two days in the log files, I noticed several consecutive login attempts on port 22 in 15 seconds from various IP addresses.After some research on the Internet I realized that the Ip addresses belong to well know botnets.Using Cisco 1812 router with IOS 12.4(6)T.
Here is some of the router configuration relevant to my question:
Login to the FXOS chassis manager.
Direct your browser to https://hostname/, and log-in using the user-name and password.
Go to Help > About and check the current version:
Check the current version availa...
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...