Configuring IPSEC VPN w/ Crypto Maps

In this blogtorial, we will set up a simple preshared key IPSEC VPN tunnel between two routers. We will also use the same topology for my next blogtorial 'Troubleshooting IPSEC VPN'. Lot's of debug and output posted with comments, see below. "Complexity is the enemy of security" therefore we will keep this a simple topology and get started.