Is is possible to have an ssl vpn client update ddns A records

[t.maier]

I have an asa running 8.0(4) terminating ssl vpn clients. I can get the asa to assign ip addresses from a windows dhcp server. The only way I can get the vpn client to register with ddns is to run an ipconfig/register on the client after starting the ssl vpn session. Any ideas why this is not happening automatically? I have the ddns set on the asa to update the dns server.

[vmoopeung]

Some VPN clients, such as the Windows VPN client, supply their hostname as part of a Mode-Config request that is forwarded to the DHCP server in the DHCP request. DHCP servers that support Dynamic DNS (DDNS) registration can then register the hostname with the IP address assigned with the DDNS server. This will allow anyone in the corporate network to reach the client by its DNS hostname rather than an IP address