I am not really surprised at that. VPN and DHCP work in very different
ways.
When you get your network config from DHCP, you are allocated an IP with
a lease time. When you get your network config from a VPN server it is
usually only active for the duration of the connection.
Microsoft VPN (through RRAS) avoids this problem by having the RRAS
server lease the IPs from DHCP, then allocating them to remote clients for
the duration of the connection. If the remote machine itself registers the
IP in DNS, it should be released when the connection is closed.
"Venkat" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I've Integrate Windows DHCP server to the VPN concentrator so that the
> Windows DHCP server will allocate the IP address to the VPN users.
>
> And i've enabled additional DHCP option, the Client FQDN option (option
> 81). (DNS Tab in DHCP, I've enabled the following option).
>
> Enable DNS dynamic updates according to the settings below check box and
> click Always dynamically update DNS A and PTR records, which is located in
> Properties on the DNS tab on the applicable DHCP server.
>
> Issue:
>
> When the VPN user disconnects the VPN connection and connects to LAN. I'm
> still seeing the previous DNS record that was created when the user was on
> VPN. The DNS server is not overwriting the existing record for the
> Machine.
>
> Any comments on this issue are truly appreciated.
>
> Venkat
>
>
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