Before an IPSec tunnel is established between the client and the concentrator, how are the user name and password being protected? Are they being sent in clear text?Please advise.

Right now, I have got the following equipment:- VPN 3030- Firewalls x 2- Cisco ACS server (hold users profile)- ACE server (user authentication)The connection of those equipment will look like:Internet - FW - VPN 3030 - FW - ACS & ACE serversI'd like...

Our company plans to implement a new IPSec VPN solution. Details are as follows:Equipment involved:VPN 3030 concentrator, Cisco ACS server, 2 ACE servers, 2 FirewallsIn my understanding, the authentication flow of a VPN client will look like:VPN clie...