How to lock wireless routers
How can I lock my WLAN routers so that others cannot connect to them?

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Depending on the type of router you have you can block direct Secure Shell (SSH) and telnet connection to the routers. If you want to, you can restrict access so changes to the management interface must be made by physical connection. If you are using Cisco products, this Hardening Cisco IOS devices guide should help in proper configuration.

This was first published in July 2009