Sure you can by using isakmp parameters in tunnel attributes. On the VPN client just configure the tunnel authentication password which can be saved within the client.
If you do not want user authentication of any kind after configure your tunnel attributes for no user autentication you may use this settings.
Be aware that when using this it will apply to any RA VPN client connecting to that tunnel group, so if you only need this for the purpose of one user I would not recomment to implement it this way, you could use pcf profiles instead to save it in the VPN client which has user's password saved locally and automatically connect.
isakmp ikev1-user-authentication none
Example assume tunnel group name is called RAVPN
tunnel-group RAVPN ipsec-attributes
isakmp ikev1-user-authentication none <-- will not ask for second authentication
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...