This document describes the information to help you secure your Cisco IOS® system devices, which increases the overall security of your network.

Solved: What is the easiest way to disable telnet on the public (T1) interfaces of my routers and enable SSH? Can I do this without setting up access lists? Thanks, Diego

Hello, here is how I understand it to work: ntp allow mode control 0 --> causes the device to respond to mode 6 packet without delay (not recommended) ntp allow mode control 3 --> causes the device to respond to mode 6 packet with a delay of 3