ASA configuration needs to have the following configured ...
- The preshared key needs to match the one configured in the windows client setup.
- The authentication needs to match what you have configured on the client, pap or chap ..
If chap is configured you need to readd the usernames to the ASA with the mschap keyword
at the end .. e.g
SV2-2(config)# username msclient password msclient mschap
- The DefaultRAGroup needs to be configured with the preshared key and point to a policy
that include this vpn-tunnel-protocol IPSec l2tp-ipsec webvpn
The complete config is below ... DefaultRAGroup will be used if the preshared key is
added and nothing is specified on the client..
tunnel-group DefaultRAGroup general-attributes
address-pool vpnpool
tunnel-group DefaultRAGroup ipsec-attributes
pre-shared-key *
tunnel-group DefaultRAGroup ppp-attributes
authentication pap
authentication ms-chap-v2