HA with Two DMVPNs Lab

Since I need to deploy DMVPN for one of my customers, I'm going to draw and test as usual.
It took me 3Apr2013 20:30hrs - 4Apr2013 02:30hrs. 
First Problem I faced is IPSec Tunnel didn't up.
Second Problem is wrong NHS IP Address for DMVPN Cloud2, so EIGRP Neighbors for Tunnel 2 didn't up from Spokes. My silly typing errors of NHS IP Address of DMVPN Cloud2. 
Redundancy Tested Successfully. Finally, i made it. I can sleep happily now.

IPSec VPN WAN Architecture Documents

VRF-Lite/MPLS VPN Support on Cisco Catalyst Switches

Two pseudowire technologies of CISCO

1- AToM  for MPLS Networks;
2- L2TPv3 for Native IP Networks;

Both support the transport of Frame Relay, ATM, HDLC and Ethernet traffic over an IP or MPLS Core.

Reference : VPLS and VPWS at a Glance

Central Service + Extranets MPLS VPN

Let's do "Central Service + Extranets MPLS VPN" Deployment Labbing ... =)

 

IPSec

- not a protocol ;
- framework to provide data CIA ;
- runs at Layer3 ;
- uses IKE to negotiate SA between peers ;
- two phases of negotiation :
                     1) IKE SA negotiations ;
                     2) IPSec SA Negotiations ;

 

Software used is Shrew Soft's VPN Client.

This is a nice webinar : https://learningnetwork.cisco.com/videos/1157