We have found that when a client running the Cisco VPN client makes a connection to the VPN Concentrator they connect up fine. When they connect up to the new ASA device, the connection runs slow. We are thinking that this could be realted to MTU. The client is currently set to 1300 by default. The interfaces on the ASA are all set to the default of 1500. Does anyone know what could be causing this? Please advise.