CCIE Labs RIPv2 authentication, timers and scalability, default routing, conditional and reliable

[christhanchacon]

MD5 is not the default ; With RIPv2, the type of authentication
(clear-text password or MD5 digest) is chosen per interface as well, using the ip
rip authentication mode { text | md5 } interface subcommand. If this command is omitted,
the authentication type defaults to text, meaning that the key is used as a clear-text
password.