This article explains you in detail about NTP configuration on Cisco devices. There are two ways to configure. First I explain about simple NTP configuration without authentication. Second, I explain about NTP configuration with MD5 authentication that is more secure than first one.
Category: Cisco Router
One end of IPSec tunnel is a Paloalto Firewall with Static Public IP address and the other end is Cisco router with Dynamic IP address and behind an Internet modem. You can refer for step by step guide to establish IPSec VPN tunnel between Paloalto Firewall and Cisco Router.
Step 1: Reload router. If you do not know the password, just perform hard reboot. Step 2: Wait for 10 seconds of startup and send a break signal to terminal If you are using PUTTY, right...