There is always the consideration for securing or authenticating the Control Plan between routing protocols and RIP is no exception. RIPv1 doesn’t support authentication, however RIPv2 supports both clear text and Message Digest 5 or MD5 authentication. Just to...
In most real world situation Site to Site VPN Tunnels are usually created between a pair Firewalls, however that is not the only way to achieve secure Site to Site encryption. For that matter one method is just as good as the other. It all depends on your situation...