![]() ![]() ![]() ![]() On the original question, best practice is to use the reload command, but as long as you've done a 'copy run start' since the last change it's not really a big deal really if you just pull the power lead and reset it. So if you make a mistake and lose connectivity the router will reload in 10 minutes and you're back where you started. For example, if you enter 'reload in 10', the router will reload in 10 minutes if you don't cancel it with a 'reload cancel' in the meantime. If you're working remotely and there isn't anybody in the same location as the router (like if you're doing an out of hours change) it's a good idea to use the 'reload in' command before entering any configuration commands. ![]() The router will load your old starting config prior to the catastrophic mistake and will be available again. Pressing any other key will abort the reload. When prompted to Proceed with reload, press Enter to confirm the reload. The benefit of this setup is that if you make a catastrophic mistake and lose connectivity you can have somebody in the same location as the router pull the power lead out and then plug it back in again. Issue the reload command to remove an old configuration from memory. To make your changes persistent over a reboot you need to copy the running configuration to the startup configuration with the 'copy run start command'. When the router boots up it loads the 'startup configuration'. In Cisco IOS, whenever you enter a configuration command it takes effect immediately and goes into the 'running configuration'. ![]()
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