8.6. Configure and verify a PPP connection between Cisco routers

After you configure your serial interface to support PPP encapsulation, you can configure authentication using PPP between routers. First, you need to set the hostname of the router, if it's not already set. Then you set the username and password for the remote router that will be connecting to your router:

Here's an example:

Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname RouterA
RouterA(config)#username RouterB password cisco

When using the hostname command, remember that the username is the hostname of the remote router that's connecting to your router. And it's case sensitive, too. Also, the password on both routers must ...

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