I have four Cisco Routers I am looking to sell. I only know something about two of them. The other two I have no data on. I know one has never been used. One of the others was used as the router when I began however I was not part of the transition to our current so I do not know if it was cleaned up. The other two I know were used but I don't know when or if they were cleaned up. None of these have active connections. All three were T1 connected routers.
How do I find out if there is still a configuration on them?
How do I reset them?