We use the Raritan KSX serial "KVM". It works well enough, although we did have a problem initially with cables for devices that use an RJ-45 connector rather than DB-9 (like that for the NetApp).

We are trying to configure a remote router by hooking it up to the production router (to establish a connection to it). The connection will work like this:<P>production router ---aux port to ...

Are two routers enough for practicing CCNA skills in your home lab? Maybe, maybe not. But you can practice a surprising number of CCNA-level router tasks with a two-router lab using the topology ...